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Callery pear
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Callery pear
Callery pear
Callery pear
Callery pear
Add to My Garden
Callery pear
Pyrus calleryana
The callery pear is native to China but is considered invasive in the U.S and Australia. Although it does not self-pollinate, it can become invasive by hybridizing with other plants to create fertile fruits that may seed in natural areas. The callery pear creates large populations of fruits that are spread by birds and animals and readily root in disturbed areas. It also forms thick colonies that may compete with other native species for natural resources. Alternative plants include the Trident Maple and the Serviceberry. The callery pear can be controlled by manually pulling young plants, and a range of herbicides such as oil-based herbicides, foliar herbicides, and both basal bark and stump treatments. It is important to remove seed sources as the weed can reinvade areas where it has been previously removed.
Water
Every 1-2 weeks
Water
care guide

Care Guide for Callery pear

Once established, Callery pear is a relatively drought-tolerant tree. It usually doesn't require any supplemental water as it gets its needs met through the rainfall. However, during hot spells, it will benefit from occasional watering. Young plants should be regularly watered during the first five years of growth.
Fertilization
Fertilization
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Start feeding your callery pear during its second year. It should be fertilized just once a year, in early spring, preferably 2 weeks before the tree starts blooming. Use a balanced, slow-release, general-purpose fertilizer. After 5-6 years, callery pear will require fertilization only if your soil lacks vital nutrients.
Shape the plant every 2 months during the growing season.
Clay, Sand, Loam, Neutral, Alkaline
Sunlight
Sunlight
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Full sun, Partial sun
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Questions About Callery pear

Watering Watering Watering
Pruning Pruning Pruning
Temperature Temperature Temperature
Seasonal Care Seasonal Care Seasonal Care
How Much Water Do I Need to Water My Callery pear?
The Callery pear generally needs about a gallon of water each schedule,With the potted plants, you might want to water them deeply until you see that the water is dripping at the bottom of the pot. Then, wait for the soil to dry before watering them again. You can use a water calculator or a moisture meter to determine the amount you've given to your plant in a week. Provide plenty of water, especially in the flowering period, but let the moisture evaporate afterwards to prevent root rot.

If Callery pear is planted outdoor with adequate rainfall, it may not need additional watering. When Callery pear is young or newly planted, make sure it gets 1-2 inches of rain per week. As Callery pear continues to grow, it can survive entirely on rainfall. Only when the weather is too hot, or when there is no rainfall at all for 2-3 weeks, then consider giving Callery pear a full watering during the cooler moment of the day to prevent the plant from suffering from high heat damage. Additional watering will be required during persistent dry spells.
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How Often Should I Water My Callery pear?
The Callery pear likes deep and infrequent watering. You would want to soak them in a gallon of water each time, especially when they are planted in pots. The water storage of flower pots is limited and the soil will dry out faster. Watering is required every 3 to 5 days when living in a cold region. Water it early in the morning when the soil is dry, outdoors or indoors. You can also determine if watering is needed by checking the soil inside. When the top 2-3 inches of soil is dry, it is time to give the plant a full watering. During hot days, you may need to check the moisture daily, as the heat can quickly dry out the soil in the pot.
Irrigation of the soil is also required if you have a garden. When you live in a hot climate, you might want to water once a week. Only water when you notice that about 2 to 3 inches of soil become too dry outdoors or indoors. Consider the amount of rainwater on the plant and ensure not to add to it to prevent root rot.You may not need additional watering of the plants if there is a lot of rainfall.Callery pear generally grows during spring and fall. When they are outdoors, you need to add mulch about 3 to 4 inches deep to conserve more water.

You need to water the plants more frequently in sandy soil because this type tends to drain faster. However, with the clay one, you need to water this less frequently where you could go for 2-3 days to dry the plant and not develop any root rot. You could mark the date on the calendar whenever you water and when you notice that the leaves are starting to droop. This can mean that you might be a day late.
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Should I Adjust the Watering Frequency for My Callery pear According to Different Seasons or Climates?
The Callery pear needs outdoors come from rain, with only persistent dry weather requiring watering. Throughout the spring and fall growing seasons, the soil needs to be kept moist but not soggy, and alternating dry and moist soil conditions will allow the Callery pear to grow well. Throughout the summer, hot weather can cause water to evaporate too quickly, and if there is a lack of rainfall, you will need to water more frequently and extra to keep it moist.

Usually, the Callery pear will need less water during the winter. Since the Callery pear will drop their leaves and go dormant, you can put them into a well-draining but moisture-retentive soil mixture like the terracotta to help the water evaporate quicker. Once your Callery pear growing outdoors begins to leaf out and go dormant, you can skip watering altogether and in most cases Callery pear can rely on the fall and winter rains to survive the entire dormant period.

After the spring, you can cultivate your Callery pear and encourage it to grow and bloom when the temperature becomes warmer.This plant is not generally a fan of ponding or drought when flowering. You must ensure that the drainage is good at all times, especially during the winter.

When the plant is in a pot, the plant has limited root growth. Keep them well-watered, especially if they are planted in pots during summer. They don't like cold and wet roots, so provide adequate drainage, especially if they are still growing.

It's always best to water your Callery pear’s diligently. Get the entire root system into a deep soak at least once or twice a week, depending on the weather. It's best to avoid shallow sprinkles that reach the leaves since they generally encourage the growth of fungi and don't reach deep into the roots. Don't allow the Callery pear’s to dry out completely in the fall or winter, even if they are already dormancy.

Don't drown the plants because they generally don't like sitting in water for too long. They can die during winter if the soil does not drain well. Also, apply mulch whenever possible to reduce stress, conserve water, and encourage healthy blooms.
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What Should I Be Careful with When I Water Callery pear in Different Seasons, Climates, or During Different Growing Periods of It?
If planting in the ground, Callery pear mostly relies on rain. However, if there is no rainfall for 2-3 weeks, you may need to give proper consideration to giving the plants a deep watering. If watering Callery pear in summer, you should try to do it in the morning. A large temperature difference between the water temperature and the root system can stress the roots. You need to avoid watering the bushes when it's too hot outside. Start mulching them during the spring when the ground is not too cold.

The age of the plants matter. Lack of water is one of the most common reasons the newly planted ones fail to grow. After they are established, you need to ease off the watering schedule.

Reduce watering them during the fall and winter, especially if they have a water-retaining material in the soil. The dry winds in winter can dry them out, and the newly planted ones can be at risk of drought during windy winter, summer, and fall. Windy seasons mean that there's more watering required. The ones planted in the pot tend to dry out faster, so they need more watering. Once you see that they bloom less, the leaves begin to dry up.

Potted plants are relatively complex to water and fluctuate in frequency. Always be careful that the pot-planted plant don't sit in the water. Avoid putting them in containers with saucers, bowls, and trays. Too much watering in the fall can make the foliage look mottled or yellowish. It's always a good idea to prevent overwatering them regardless of the current climate or season that you might have. During the months when Callery pear begins to flower, you might want to increase the watering frequency but give it a rest once they are fully grown.

Give them an adequate amount of water once every 3 to 5 days but don't give them regular schedules. Make sure the soil is dry by sticking your finger in the pot, or use a moisture meter if you're unsure if it's the right time. Too much root rot can cause them to die, so be careful not to overwater or underwater regardless of the climate or season you have in your area.
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What Should I Do If I Water Callery pear Too Much/Too Little?
An overwatered Callery pear can start to have leaves that turn yellow, drop off and wilt. The plant can also look dull and unhealthy, with signs of mushy stems. When they are beginning to show these signs, it's best to adjust your schedule whenever possible.
The wilting can also be a sign of under watering as well. You might see that the leaves begin to turn crispy and dry while the overwatered ones will have soft wilted leaves. Check the soil when it is dry and watering is not enough, give it a full watering in time. Enough water will make the Callery pear recover again, but the plant will still appear dry and yellow leaves after a few days due to the damaged root system. Once it return to normal, the leave yellowing will stop .

Always check the moisture levels at the pot when you have the Callery pear indoors. Avoid overwatering indoors and see if there are signs of black spots. If these are present, let the soil dry in the pot by giving it a few days of rest from watering.

Overwatering can lead to root rot being present in your plant. If this is the case, you might want to transfer them into a different pot, especially if you see discolored and slimy roots. Always prevent root rot as much as possible, and don't let the soil become too soggy.

You should dig a little deeper when you plant your Callery pear outdoors. When you check with your fingers and notice that the soil is too dry, it could mean underwatering. Adequate watering is required to help the plant recover.
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What'S the Best Method to Water the Callery pear?
You might want to put a garden hose at the plant base to ensure that you're promoting excellent root development. Avoid directly spraying the leaves, and know that the leaves will require more watering if they are outdoors and facing direct sunlight. You can also use bubblers that you can put on to each plant to moisten the roots. Also, use soaker hoses that can cover the entire garden or bed when adding or removing plants to push the roots deeply. Drain any excess water and wait for the soil to dry before watering. Water at ground level to prevent diseases. On a sunny day, you might want to spray the entire bush with water. Whether potted or in-ground, please remember Callery pear prefers deep watering over light sprinkling.
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Why Should I Water the Callery pear?
Watering the Callery pear helps transport the needed nutrients from the soil to the rest of the plant. The moisture will keep this species healthy if you know how much water to give. The watering requirements will depend on the weather in your area and the plant's soil.

The Callery pear thrives on moist soil, but they can't generally tolerate waterlogging. Ensure to provide enough mulch when planted on the ground and never fall into the trap of watering too little. They enjoy a full can of watering where the water should be moist at the base when they are planted in a pot to get the best blooms.

If they are grown as foliage, you need to water them up to a depth of 10 to 20 inches so they will continue to grow. If it's raining, refrain from watering and let them get the nutrients they need from the rainwater.
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pests

Common Pests & Diseases

Common issues for Callery pear based on 10 million real cases
Brown spot
Brown spot Brown spot
Brown spot
This infection can cause brown spots or patches to appear on the plant.
Solutions: In minor cases of brown spot, there isn’t any need to treat the disease. However, if much of the foliage is affected and defoliation occurs, the plant will benefit from getting rid of the infection. It is recommended to start by applying organic treatment options, working up to the more potent synthetic, chemical fungicides if necessary. Organic options won’t kill the fungus, but will prevent it from spreading. Dissolve ½ teaspoon of baking soda and one teaspoon of liquid soap in a gallon of water. Using a spray bottle, spray on tops and bottoms of leaves until the mixture drips off. Repeat every two weeks until existing spots stop enlarging and new spots no longer appear. Spray a copper-based fungicidal soap on the leaves, coating the top and bottom leaf surfaces. Reapply as directed on the product label. Copper penetrates the leaf surface and prevents germination of spores so the fungus cannot spread. Apply an all-purpose fungicide to the entire plant, following the label instructions carefully.
Fruit Spot
Fruit Spot Fruit Spot
Fruit Spot
Pathogenic infections can cause spots (typically black or brown) to appear on the fruit.
Solutions: Prune regularly - prune as a preventative measure as well as to remove any plants and plant parts affected by fruit Spot. Improve air circulation and drainage Fertilize as needed Spray applications - there are few programs that are effective at controlling fruit Spot for home growers, but the local cooperative extension may be able to provide information regarding potential chemical treatments if the disease is severe.
Rust disease
Rust disease Rust disease
Rust disease
Rust fungus appears as reddish-brown mold deposits on the leaves, stems, and fruits of plants. In certain plants, it also causes reddish-brown spots and galls.
Solutions: Rust disease rarely kills plants, but it can weaken them and leave them vulnerable to other diseases. It's important to treat rust disease as soon as it is spotted. Remove infected leaves: eliminate fungal spores by picking off infected leaves and throwing them in the garbage. Do not compost them since this can spread the fungus to other plants. Use fungicide: A copper spray, sulfur powder, or broad-spectrum fungicide can help control a rust outbreak. Be sure to read all usage instructions carefully before applying. Water smarter: Keep plant leaves dry by watering in the morning so that the midday sun will dry them. It's also smart to use a soaker hose or drip irrigation to water only at the soil level.
Underwatering
Underwatering Underwatering
Underwatering
Leaves may wilt for a variety of reasons.
Solutions: The easiest (and most obvious) way to address underwatering is to fully hydrate the plant. However, this must be done carefully. A common mistake that many gardeners make is to douse their underwatered plants with water. This can overwhelm the roots of the plant and shock its system, something that can be even more damaging than the lack of water to begin with. Instead, water thoroughly and slowly, taking breaks to let the water slowly saturate through the soil to get to the roots. Use room temperature water, as cold water might be too much of a shock. In the future, shorten the time between waterings. A good rule of thumb is to check the soil around each plant daily. If it’s dry to at least two inches down, it’s time to water. If a container plant is repeatedly drying out very quickly, repotting into a slower-draining container might be a good idea, too.
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Brown spot
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Brown spot
This infection can cause brown spots or patches to appear on the plant.
Overview
Overview
Discolored spots on the foliage of plants are one of the most common disease problems people observe. These spots are caused by fungal and bacterial diseases, with most infections related to a fungal pathogen.
Brown spot can occurs on all houseplants, flowering ornamentals, vegetable plants, and leaves of trees, bushes, and shrubs. No plants are resistant to it, and the problem is worse in warm, wet environments. It can occur at any point in the life stage as long as leaves are present.
Small brownish spots appear on the foliage and enlarge as the disease progresses. In severe cases, the plant or tree is weakened when the lesions interrupt photosynthesis or cause defoliation.
Symptom Analysis
Symptom Analysis
In most cases, brown spot only affects a small percentage of the whole plant, appearing on a small amount of the leaves. A small infection only puts minor stress on the plant. However, if left untreated and the disease progresses over numerous seasons, it will severely impact the health and productivity of the infected specimen.
  • Sporulation begins (reproduction of the fungal spores), and tiny spots appear on leaves.
  • Placement is often random and scattered as diseases are spread through raindrops.
  • May appear on lower leaves and the interior of the plant where humidity is higher.
  • Brown spots enlarge and grow large enough to touch neighboring spots to form a more prominent blotch.
  • Leaf margins may turn yellow.
  • Tiny black dots (fruiting bodies of the fungi) appear in the dead spots.
  • Blotches grow in size until the entire leaf is brown.
  • The leaf falls off the plant.
Severe Symptoms
  • Partial or complete premature defoliation
  • Reduced growth
  • Increased susceptibility to pests and other diseases
Disease Cause
Disease Cause
Brown spot, or leaf spot, is a common descriptive term given to several diseases affecting the leaves of plants and trees. Around 85% of diseases exhibiting leaf spots are due to fungus or fungus-like organisms. Sometimes brown spot is caused by a bacterial infection, or insect activity with similar symptoms.
When conditions are warm and the leaf surfaces are wet, fungal spores being transported by wind or rain land on the surface and cling to it. They do not rupture the cell walls but grow in the space between the plant plasma membrane and the plant cell wall. As the spores reproduce, they release toxins and enzymes that cause necrotic spots (i.e., dead tissue) on the leaves, allowing the fungi to consume the products released when the cells degrade.
Solutions
Solutions
In minor cases of brown spot, there isn’t any need to treat the disease. However, if much of the foliage is affected and defoliation occurs, the plant will benefit from getting rid of the infection. It is recommended to start by applying organic treatment options, working up to the more potent synthetic, chemical fungicides if necessary.
Organic options won’t kill the fungus, but will prevent it from spreading.
  1. Dissolve ½ teaspoon of baking soda and one teaspoon of liquid soap in a gallon of water. Using a spray bottle, spray on tops and bottoms of leaves until the mixture drips off. Repeat every two weeks until existing spots stop enlarging and new spots no longer appear.
  2. Spray a copper-based fungicidal soap on the leaves, coating the top and bottom leaf surfaces. Reapply as directed on the product label. Copper penetrates the leaf surface and prevents germination of spores so the fungus cannot spread.
  3. Apply an all-purpose fungicide to the entire plant, following the label instructions carefully.
Prevention
Prevention
Like many other diseases, it is easier to prevent brown spot than cure it, and this is done through cultural practices.
  • Clear fall leaves from the ground before winter to minimize places where fungi and bacteria can overwinter.
  • Maintain good air movement between plants through proper plant spacing.
  • Increase air circulation through the center of plants through pruning.
  • Thoroughly clean all pruning tools after working with diseased plants.
  • Never dispose of disease plant material in a compost pile.
  • Avoid overhead watering to keep moisture off of the foliage.
  • Keep plants healthy by providing adequate sunlight, water, and fertilizer.
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Fruit Spot
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Fruit Spot
Pathogenic infections can cause spots (typically black or brown) to appear on the fruit.
Overview
Overview
If there are brown or black spots on the unripened fruits of plants, there is a good chance that fruit Spot could be to blame. This is an informal term used to describe several types of diseases that all cause these same symptoms: unattractive spots on fruits and vegetables.
There are a few different culprits behind fruit Spot, including bacterial spot, bacterial speck, and other related diseases (like early blight). Here are some symptoms and potential solutions to consider.
Symptom Analysis
Symptom Analysis
The symptoms of fruit Spot vary depending on which type of plant is affected as well as by which specific pathogen is to blame. Just about every type of plant can be affected by fruit Spot, including tomatoes, pears, plums, onions, strawberries, celery, peaches, and more.
Here are some examples of potential symptoms:
Small Fruit Spot
Small spots are most commonly associated with bacterial speck.
  • Spots may appear on fruits as well as leaves and other aboveground areas of the plant
  • Small black specks appear on infected fruits (spots are less than 1/16” in diameter)
  • Spots are raised with distinct margins, developing into sunken pits as the fruit matures
  • Fruit tissue near the spot stays green longer than the rest of the fruit
  • Spots are dark brown to black in color, with nearby spots often growing together
Large Fruit Spot
Large spots are often seen on plants suffering from bacterial spot, early blight, and related diseases.
  • Spots are large, sometimes larger than 1.3 cm
  • Some spots may look like targets with a brown to greyish coloration
  • Older spots are black and raised with lobed borders
  • Spots are superficial only, not penetrating into the seed cavity
  • Spots may turn into sunken pits, turning into craters as they get older
  • The skin of the fruit can be cracked and produce a water-soaked border
  • Some spots may ooze a gelatinous substance
Disease Cause
Disease Cause
There are a few culprits behind the fruit Spot. These depend on the pathogen as well as the type of plant. Bacterial speck and bacterial spot are both common diseases that can affect tomatoes, ground cherries, and other plants.
Bacterial speck is caused by Pseudomonas syringae. First discovered in the United States in 1933, it is most common in tomatoes and nearby weeds but can affect other kinds of plants and their fruits, too. It is more prevalent in low temperatures (less than 24 ℃) and high moisture.
Bacterial spot is caused by Xanthomonas campestris pv. Vesicatoria. First discovered in Texas in 1912, this disease is more common in warm weather and conditions of high moisture.
Solutions
Solutions
  • Prune regularly - prune as a preventative measure as well as to remove any plants and plant parts affected by fruit Spot.
  • Improve air circulation and drainage
  • Fertilize as needed
  • Spray applications - there are few programs that are effective at controlling fruit Spot for home growers, but the local cooperative extension may be able to provide information regarding potential chemical treatments if the disease is severe.
Prevention
Prevention
There are several ways to prevent both types of fruit Spot from affecting yields and harvests:
  • Rotate crops - do not plant the same kind of plant in the same spot each year, instead switching out locations every two to three years
  • Use disease-free seeds and transplants - using a hot water treatment to sterilize seeds before planting can also be effective
  • Irrigate early in the day to give plants time to dry off before nightfall
  • Avoid working around plants when they are wet
  • Control weeds
  • Remove debris or plow it under at the end of the growing season
  • Fertilize with higher amounts of nitrogen and use less calcium
  • Plant resistant cultivars when available
  • Do not clip plants when transplanting
  • Dispose of affected plant parts immediately (do not compost)
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Rust disease
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Rust disease
Rust fungus appears as reddish-brown mold deposits on the leaves, stems, and fruits of plants. In certain plants, it also causes reddish-brown spots and galls.
Overview
Overview
Rust disease is a fungus that is most common on the lower leaves of mature plants. If a plant is badly affected, the leaves will deform and eventually drop off the plant. The disease causes blemishes on the leaves that resemble rust spots. It is more common after periods of extended rainfall, as this results in the germination of the fungal spores and the dispersal of the spores onto the plant.
Although rust disease is not fatal for most plants, it can weaken the overall health of the tree and make it more vulnerable to other pests and diseases. Therefore, it's best to remove the affected material and follow good cultural practices to prevent further infection.
Symptom Analysis
Symptom Analysis
Here are the typical symptoms of rust disease:
  • Slightly raised, white spots on the undersides of the leaves and stems.
  • These spots then turn a reddish-orange color, which indicates the presence of fungal spores.
  • Reddish-orange spots appear on the upper sides of the leaves as well.
  • Eventually, the rust spots form pustules or raised lumps that can turn yellow-green and finally black.
  • Highly infected leaves will become yellow and drop off the plant.
Disease Cause
Disease Cause
Rust disease is caused by the fungus Phragmidium spp. The fungal spores overwinter inside the stems of the plant and are spread by water and wind. They can be identified by dark, cork-like blotches.
Like most fungal diseases, infection occurs during warm, humid weather, especially when the leaves remain damp for an extended period of time.
Solutions
Solutions
Rust disease rarely kills plants, but it can weaken them and leave them vulnerable to other diseases. It's important to treat rust disease as soon as it is spotted.
  1. Remove infected leaves: eliminate fungal spores by picking off infected leaves and throwing them in the garbage. Do not compost them since this can spread the fungus to other plants.
  2. Use fungicide: A copper spray, sulfur powder, or broad-spectrum fungicide can help control a rust outbreak. Be sure to read all usage instructions carefully before applying.
  3. Water smarter: Keep plant leaves dry by watering in the morning so that the midday sun will dry them. It's also smart to use a soaker hose or drip irrigation to water only at the soil level.
Prevention
Prevention
The best way to prevent rust diseases is by planting resistant varieties. Most nurseries will specify which species qualify. When introducing new plants, check the plants for signs of rust before planting.
Rust disease often spreads through watering, or when working with wet plants, so take care not to touch an infected plant and accidentally spread spores to healthy ones. Keep vulnerable plants well-pruned to maximize airflow and prevent moisture build-up.
If the soil is contaminated, it's also a good idea to lay down thick mulch around the base of plants. This prevents spores from splashing up to hit plant leaves while watering.
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Underwatering
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Underwatering
Leaves may wilt for a variety of reasons.
Overview
Overview
Underwatering plants is one of the quickest ways to kill them. This is something that most gardeners are well aware of. Unfortunately, knowing exactly how much water a plant needs can be tricky, especially considering that underwatering and overwatering present similar symptoms in plants.
Therefore, it’s important to be vigilant and attentive to each plants’ individual needs.
Symptom Analysis
Symptom Analysis
As mentioned earlier, overwatering and underwatering present similar symptoms in plants. These symptoms include poor growth, wilted leaves, defoliation, and brown leaf tips or margins. Ultimately, both underwatering and overwatering can lead to the death of a plant.
The easiest way to determine whether a plant has too much water or too little is to look at the leaves. If underwatering is the culprit, the leaves will look brown and crunchy, while if it’s overwatering, they will appear yellow or a pale green in color.
When this issue first begins, there may be no noticeable symptoms at all, particularly in hardy or drought-tolerant plants. However, they will begin to wilt once they start suffering from a lack of water. The edges of the plant’s leaves will become brown or curled. Soil pulling away from the edges of the planter is a telltale sign, or a crispy, brittle stem.
Prolonged underwatering can cause a plant’s growth to become stunted. The leaves might drop and the plant can be more susceptible to pest infestations, too.
Disease Cause
Disease Cause
Underwatering is caused by, quite simply, not watering plants often or deeply enough. There is a heightened risk of underwatering if any of these situations apply:
  • Extreme heat and dry weather (when growing outdoors)
  • Grow lights or indoor lighting that is too bright or intense for the type of plant
  • Using fast-draining growing media such as sand
Solutions
Solutions
The easiest (and most obvious) way to address underwatering is to fully hydrate the plant. However, this must be done carefully. A common mistake that many gardeners make is to douse their underwatered plants with water. This can overwhelm the roots of the plant and shock its system, something that can be even more damaging than the lack of water to begin with.
Instead, water thoroughly and slowly, taking breaks to let the water slowly saturate through the soil to get to the roots. Use room temperature water, as cold water might be too much of a shock.
In the future, shorten the time between waterings. A good rule of thumb is to check the soil around each plant daily. If it’s dry to at least two inches down, it’s time to water. If a container plant is repeatedly drying out very quickly, repotting into a slower-draining container might be a good idea, too.
Prevention
Prevention
Always check the soil before watering. If the top inch of soil feels moist, though not wet, the watering is perfect. If it’s dry, water it immediately. If it feels soggy, you avoid watering until it dries out a bit more.
Also, make sure the lighting is sufficient for the species. Plants grow faster and need more water when there is intense light or lots of heat. Being aware of these conditions and modifying them, if possible, is a good way to prevent underwatering. Many container plants are potted in soil mixtures mean to be well-draining. Adding materials that retain moisture, like compost or peat moss, can also prevent these symptoms.
Other tips to prevent underwatering include:
  • Choose pots with adequately-sized drainage holes
  • Avoid warm temperatures
  • Use large pots with additional soil (these take longer to dry out)
  • Avoid terracotta pots, which lose water quickly
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weed

Weed Control

Weeds
Callery pear is a deciduous tree, widely popular as an ornamental plant due to its numerous attractive flowers. However, its fast growth and rapid spread have earned it the title of an invasive species, especially in the United States.
How to Control it
The easiest way to prevent the spread of callery pear is to not plant it. The tree spreads naturally from seeds in bird droppings, so if you find saplings in your garden, pull them out as soon as possible, using a trowel or spade to remove the roots. If larger trees are in question, cut them down and apply herbicide on the stump to prevent it from resprouting. Consult an agricultural expert before picking the active substance to find the best product and application method for your geographical region. Read the instructions on the product label and follow them carefully. Apply the herbicide on the stump only, and spray on a windless day to avoid drift. If you want to keep mature plants in your garden, but also stop their spread, you can use hormone sprays such as ethephon which prevent them from producing fruit.
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distribution

Distribution Map

Habitat

Thickets, streamsides, slopes, plains, mixed valley forests
distribution map
Native
Cultivated
Invasive
Potentially invasive
Exotic
No species reported
habit
plant_info

More Info

Plant Type
Plant Type
Tree
Flower Color
Flower Color
White
Bloom Time
Bloom Time
Spring

Name story

Callery pear
Although it produces an unpleasant odor when it blooms, the tree filled with its white blossoms creates a spectacular view, and so it is planted widely. The tree is named the Callery pear in memory of the French man, Joseph Marie Callery, who brought the plant from China to Europe.

Symbolism

Lust, Love, resilience

Usages

Garden Use
Callery pear is common in many home and public gardens, prized for its luscious white flowers and attractive foliage. Gardeners who like to attract pollinators or simply like an easy and fast-growing flowering ornamental tree typically go for callery pear. Often grown in cottage and courtyard gardens, it works well when planted with dwarf lilac, African marigolds, and clover.

Scientific Classification

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Questions About Callery pear

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Common Pests & Diseases

Common issues for Callery pear based on 10 million real cases
Brown spot
Brown spot  Brown spot  Brown spot
This infection can cause brown spots or patches to appear on the plant.
Solutions: In minor cases of brown spot, there isn’t any need to treat the disease. However, if much of the foliage is affected and defoliation occurs, the plant will benefit from getting rid of the infection. It is recommended to start by applying organic treatment options, working up to the more potent synthetic, chemical fungicides if necessary. Organic options won’t kill the fungus, but will prevent it from spreading. Dissolve ½ teaspoon of baking soda and one teaspoon of liquid soap in a gallon of water. Using a spray bottle, spray on tops and bottoms of leaves until the mixture drips off. Repeat every two weeks until existing spots stop enlarging and new spots no longer appear. Spray a copper-based fungicidal soap on the leaves, coating the top and bottom leaf surfaces. Reapply as directed on the product label. Copper penetrates the leaf surface and prevents germination of spores so the fungus cannot spread. Apply an all-purpose fungicide to the entire plant, following the label instructions carefully.
Learn More more
Fruit Spot
Fruit Spot  Fruit Spot  Fruit Spot
Pathogenic infections can cause spots (typically black or brown) to appear on the fruit.
Solutions: Prune regularly - prune as a preventative measure as well as to remove any plants and plant parts affected by fruit Spot. Improve air circulation and drainage Fertilize as needed Spray applications - there are few programs that are effective at controlling fruit Spot for home growers, but the local cooperative extension may be able to provide information regarding potential chemical treatments if the disease is severe.
Learn More more
Rust disease
Rust disease  Rust disease  Rust disease
Rust fungus appears as reddish-brown mold deposits on the leaves, stems, and fruits of plants. In certain plants, it also causes reddish-brown spots and galls.
Solutions: Rust disease rarely kills plants, but it can weaken them and leave them vulnerable to other diseases. It's important to treat rust disease as soon as it is spotted. Remove infected leaves: eliminate fungal spores by picking off infected leaves and throwing them in the garbage. Do not compost them since this can spread the fungus to other plants. Use fungicide: A copper spray, sulfur powder, or broad-spectrum fungicide can help control a rust outbreak. Be sure to read all usage instructions carefully before applying. Water smarter: Keep plant leaves dry by watering in the morning so that the midday sun will dry them. It's also smart to use a soaker hose or drip irrigation to water only at the soil level.
Learn More more
Underwatering
Underwatering  Underwatering  Underwatering
Leaves may wilt for a variety of reasons.
Solutions: The easiest (and most obvious) way to address underwatering is to fully hydrate the plant. However, this must be done carefully. A common mistake that many gardeners make is to douse their underwatered plants with water. This can overwhelm the roots of the plant and shock its system, something that can be even more damaging than the lack of water to begin with. Instead, water thoroughly and slowly, taking breaks to let the water slowly saturate through the soil to get to the roots. Use room temperature water, as cold water might be too much of a shock. In the future, shorten the time between waterings. A good rule of thumb is to check the soil around each plant daily. If it’s dry to at least two inches down, it’s time to water. If a container plant is repeatedly drying out very quickly, repotting into a slower-draining container might be a good idea, too.
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Brown spot
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Brown spot
This infection can cause brown spots or patches to appear on the plant.
Overview
Overview
Discolored spots on the foliage of plants are one of the most common disease problems people observe. These spots are caused by fungal and bacterial diseases, with most infections related to a fungal pathogen.
Brown spot can occurs on all houseplants, flowering ornamentals, vegetable plants, and leaves of trees, bushes, and shrubs. No plants are resistant to it, and the problem is worse in warm, wet environments. It can occur at any point in the life stage as long as leaves are present.
Small brownish spots appear on the foliage and enlarge as the disease progresses. In severe cases, the plant or tree is weakened when the lesions interrupt photosynthesis or cause defoliation.
Symptom Analysis
Symptom Analysis
In most cases, brown spot only affects a small percentage of the whole plant, appearing on a small amount of the leaves. A small infection only puts minor stress on the plant. However, if left untreated and the disease progresses over numerous seasons, it will severely impact the health and productivity of the infected specimen.
  • Sporulation begins (reproduction of the fungal spores), and tiny spots appear on leaves.
  • Placement is often random and scattered as diseases are spread through raindrops.
  • May appear on lower leaves and the interior of the plant where humidity is higher.
  • Brown spots enlarge and grow large enough to touch neighboring spots to form a more prominent blotch.
  • Leaf margins may turn yellow.
  • Tiny black dots (fruiting bodies of the fungi) appear in the dead spots.
  • Blotches grow in size until the entire leaf is brown.
  • The leaf falls off the plant.
Severe Symptoms
  • Partial or complete premature defoliation
  • Reduced growth
  • Increased susceptibility to pests and other diseases
Disease Cause
Disease Cause
Brown spot, or leaf spot, is a common descriptive term given to several diseases affecting the leaves of plants and trees. Around 85% of diseases exhibiting leaf spots are due to fungus or fungus-like organisms. Sometimes brown spot is caused by a bacterial infection, or insect activity with similar symptoms.
When conditions are warm and the leaf surfaces are wet, fungal spores being transported by wind or rain land on the surface and cling to it. They do not rupture the cell walls but grow in the space between the plant plasma membrane and the plant cell wall. As the spores reproduce, they release toxins and enzymes that cause necrotic spots (i.e., dead tissue) on the leaves, allowing the fungi to consume the products released when the cells degrade.
Solutions
Solutions
In minor cases of brown spot, there isn’t any need to treat the disease. However, if much of the foliage is affected and defoliation occurs, the plant will benefit from getting rid of the infection. It is recommended to start by applying organic treatment options, working up to the more potent synthetic, chemical fungicides if necessary.
Organic options won’t kill the fungus, but will prevent it from spreading.
  1. Dissolve ½ teaspoon of baking soda and one teaspoon of liquid soap in a gallon of water. Using a spray bottle, spray on tops and bottoms of leaves until the mixture drips off. Repeat every two weeks until existing spots stop enlarging and new spots no longer appear.
  2. Spray a copper-based fungicidal soap on the leaves, coating the top and bottom leaf surfaces. Reapply as directed on the product label. Copper penetrates the leaf surface and prevents germination of spores so the fungus cannot spread.
  3. Apply an all-purpose fungicide to the entire plant, following the label instructions carefully.
Prevention
Prevention
Like many other diseases, it is easier to prevent brown spot than cure it, and this is done through cultural practices.
  • Clear fall leaves from the ground before winter to minimize places where fungi and bacteria can overwinter.
  • Maintain good air movement between plants through proper plant spacing.
  • Increase air circulation through the center of plants through pruning.
  • Thoroughly clean all pruning tools after working with diseased plants.
  • Never dispose of disease plant material in a compost pile.
  • Avoid overhead watering to keep moisture off of the foliage.
  • Keep plants healthy by providing adequate sunlight, water, and fertilizer.
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Fruit Spot
plant poor
Fruit Spot
Pathogenic infections can cause spots (typically black or brown) to appear on the fruit.
Overview
Overview
If there are brown or black spots on the unripened fruits of plants, there is a good chance that fruit Spot could be to blame. This is an informal term used to describe several types of diseases that all cause these same symptoms: unattractive spots on fruits and vegetables.
There are a few different culprits behind fruit Spot, including bacterial spot, bacterial speck, and other related diseases (like early blight). Here are some symptoms and potential solutions to consider.
Symptom Analysis
Symptom Analysis
The symptoms of fruit Spot vary depending on which type of plant is affected as well as by which specific pathogen is to blame. Just about every type of plant can be affected by fruit Spot, including tomatoes, pears, plums, onions, strawberries, celery, peaches, and more.
Here are some examples of potential symptoms:
Small Fruit Spot
Small spots are most commonly associated with bacterial speck.
  • Spots may appear on fruits as well as leaves and other aboveground areas of the plant
  • Small black specks appear on infected fruits (spots are less than 1/16” in diameter)
  • Spots are raised with distinct margins, developing into sunken pits as the fruit matures
  • Fruit tissue near the spot stays green longer than the rest of the fruit
  • Spots are dark brown to black in color, with nearby spots often growing together
Large Fruit Spot
Large spots are often seen on plants suffering from bacterial spot, early blight, and related diseases.
  • Spots are large, sometimes larger than 1.3 cm
  • Some spots may look like targets with a brown to greyish coloration
  • Older spots are black and raised with lobed borders
  • Spots are superficial only, not penetrating into the seed cavity
  • Spots may turn into sunken pits, turning into craters as they get older
  • The skin of the fruit can be cracked and produce a water-soaked border
  • Some spots may ooze a gelatinous substance
Disease Cause
Disease Cause
There are a few culprits behind the fruit Spot. These depend on the pathogen as well as the type of plant. Bacterial speck and bacterial spot are both common diseases that can affect tomatoes, ground cherries, and other plants.
Bacterial speck is caused by Pseudomonas syringae. First discovered in the United States in 1933, it is most common in tomatoes and nearby weeds but can affect other kinds of plants and their fruits, too. It is more prevalent in low temperatures (less than 24 ℃) and high moisture.
Bacterial spot is caused by Xanthomonas campestris pv. Vesicatoria. First discovered in Texas in 1912, this disease is more common in warm weather and conditions of high moisture.
Solutions
Solutions
  • Prune regularly - prune as a preventative measure as well as to remove any plants and plant parts affected by fruit Spot.
  • Improve air circulation and drainage
  • Fertilize as needed
  • Spray applications - there are few programs that are effective at controlling fruit Spot for home growers, but the local cooperative extension may be able to provide information regarding potential chemical treatments if the disease is severe.
Prevention
Prevention
There are several ways to prevent both types of fruit Spot from affecting yields and harvests:
  • Rotate crops - do not plant the same kind of plant in the same spot each year, instead switching out locations every two to three years
  • Use disease-free seeds and transplants - using a hot water treatment to sterilize seeds before planting can also be effective
  • Irrigate early in the day to give plants time to dry off before nightfall
  • Avoid working around plants when they are wet
  • Control weeds
  • Remove debris or plow it under at the end of the growing season
  • Fertilize with higher amounts of nitrogen and use less calcium
  • Plant resistant cultivars when available
  • Do not clip plants when transplanting
  • Dispose of affected plant parts immediately (do not compost)
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Rust disease
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Rust disease
Rust fungus appears as reddish-brown mold deposits on the leaves, stems, and fruits of plants. In certain plants, it also causes reddish-brown spots and galls.
Overview
Overview
Rust disease is a fungus that is most common on the lower leaves of mature plants. If a plant is badly affected, the leaves will deform and eventually drop off the plant. The disease causes blemishes on the leaves that resemble rust spots. It is more common after periods of extended rainfall, as this results in the germination of the fungal spores and the dispersal of the spores onto the plant.
Although rust disease is not fatal for most plants, it can weaken the overall health of the tree and make it more vulnerable to other pests and diseases. Therefore, it's best to remove the affected material and follow good cultural practices to prevent further infection.
Symptom Analysis
Symptom Analysis
Here are the typical symptoms of rust disease:
  • Slightly raised, white spots on the undersides of the leaves and stems.
  • These spots then turn a reddish-orange color, which indicates the presence of fungal spores.
  • Reddish-orange spots appear on the upper sides of the leaves as well.
  • Eventually, the rust spots form pustules or raised lumps that can turn yellow-green and finally black.
  • Highly infected leaves will become yellow and drop off the plant.
Disease Cause
Disease Cause
Rust disease is caused by the fungus Phragmidium spp. The fungal spores overwinter inside the stems of the plant and are spread by water and wind. They can be identified by dark, cork-like blotches.
Like most fungal diseases, infection occurs during warm, humid weather, especially when the leaves remain damp for an extended period of time.
Solutions
Solutions
Rust disease rarely kills plants, but it can weaken them and leave them vulnerable to other diseases. It's important to treat rust disease as soon as it is spotted.
  1. Remove infected leaves: eliminate fungal spores by picking off infected leaves and throwing them in the garbage. Do not compost them since this can spread the fungus to other plants.
  2. Use fungicide: A copper spray, sulfur powder, or broad-spectrum fungicide can help control a rust outbreak. Be sure to read all usage instructions carefully before applying.
  3. Water smarter: Keep plant leaves dry by watering in the morning so that the midday sun will dry them. It's also smart to use a soaker hose or drip irrigation to water only at the soil level.
Prevention
Prevention
The best way to prevent rust diseases is by planting resistant varieties. Most nurseries will specify which species qualify. When introducing new plants, check the plants for signs of rust before planting.
Rust disease often spreads through watering, or when working with wet plants, so take care not to touch an infected plant and accidentally spread spores to healthy ones. Keep vulnerable plants well-pruned to maximize airflow and prevent moisture build-up.
If the soil is contaminated, it's also a good idea to lay down thick mulch around the base of plants. This prevents spores from splashing up to hit plant leaves while watering.
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Underwatering
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Underwatering
Leaves may wilt for a variety of reasons.
Overview
Overview
Underwatering plants is one of the quickest ways to kill them. This is something that most gardeners are well aware of. Unfortunately, knowing exactly how much water a plant needs can be tricky, especially considering that underwatering and overwatering present similar symptoms in plants.
Therefore, it’s important to be vigilant and attentive to each plants’ individual needs.
Symptom Analysis
Symptom Analysis
As mentioned earlier, overwatering and underwatering present similar symptoms in plants. These symptoms include poor growth, wilted leaves, defoliation, and brown leaf tips or margins. Ultimately, both underwatering and overwatering can lead to the death of a plant.
The easiest way to determine whether a plant has too much water or too little is to look at the leaves. If underwatering is the culprit, the leaves will look brown and crunchy, while if it’s overwatering, they will appear yellow or a pale green in color.
When this issue first begins, there may be no noticeable symptoms at all, particularly in hardy or drought-tolerant plants. However, they will begin to wilt once they start suffering from a lack of water. The edges of the plant’s leaves will become brown or curled. Soil pulling away from the edges of the planter is a telltale sign, or a crispy, brittle stem.
Prolonged underwatering can cause a plant’s growth to become stunted. The leaves might drop and the plant can be more susceptible to pest infestations, too.
Disease Cause
Disease Cause
Underwatering is caused by, quite simply, not watering plants often or deeply enough. There is a heightened risk of underwatering if any of these situations apply:
  • Extreme heat and dry weather (when growing outdoors)
  • Grow lights or indoor lighting that is too bright or intense for the type of plant
  • Using fast-draining growing media such as sand
Solutions
Solutions
The easiest (and most obvious) way to address underwatering is to fully hydrate the plant. However, this must be done carefully. A common mistake that many gardeners make is to douse their underwatered plants with water. This can overwhelm the roots of the plant and shock its system, something that can be even more damaging than the lack of water to begin with.
Instead, water thoroughly and slowly, taking breaks to let the water slowly saturate through the soil to get to the roots. Use room temperature water, as cold water might be too much of a shock.
In the future, shorten the time between waterings. A good rule of thumb is to check the soil around each plant daily. If it’s dry to at least two inches down, it’s time to water. If a container plant is repeatedly drying out very quickly, repotting into a slower-draining container might be a good idea, too.
Prevention
Prevention
Always check the soil before watering. If the top inch of soil feels moist, though not wet, the watering is perfect. If it’s dry, water it immediately. If it feels soggy, you avoid watering until it dries out a bit more.
Also, make sure the lighting is sufficient for the species. Plants grow faster and need more water when there is intense light or lots of heat. Being aware of these conditions and modifying them, if possible, is a good way to prevent underwatering. Many container plants are potted in soil mixtures mean to be well-draining. Adding materials that retain moisture, like compost or peat moss, can also prevent these symptoms.
Other tips to prevent underwatering include:
  • Choose pots with adequately-sized drainage holes
  • Avoid warm temperatures
  • Use large pots with additional soil (these take longer to dry out)
  • Avoid terracotta pots, which lose water quickly
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weed

Weed Control

weed
Weeds
Callery pear is a deciduous tree, widely popular as an ornamental plant due to its numerous attractive flowers. However, its fast growth and rapid spread have earned it the title of an invasive species, especially in the United States.
How to Control it
The easiest way to prevent the spread of callery pear is to not plant it. The tree spreads naturally from seeds in bird droppings, so if you find saplings in your garden, pull them out as soon as possible, using a trowel or spade to remove the roots. If larger trees are in question, cut them down and apply herbicide on the stump to prevent it from resprouting. Consult an agricultural expert before picking the active substance to find the best product and application method for your geographical region. Read the instructions on the product label and follow them carefully. Apply the herbicide on the stump only, and spray on a windless day to avoid drift. If you want to keep mature plants in your garden, but also stop their spread, you can use hormone sprays such as ethephon which prevent them from producing fruit.
Show More more
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distribution

Distribution Map

Habitat

Thickets, streamsides, slopes, plains, mixed valley forests

Map

distribution map
Native
Cultivated
Invasive
Potentially invasive
Exotic
No species reported
plant_info

More Info

Plant Type
Plant Type
Tree
Flower Color
Flower Color
White
Bloom Time
Bloom Time
Spring

Name story

Callery pear
Although it produces an unpleasant odor when it blooms, the tree filled with its white blossoms creates a spectacular view, and so it is planted widely. The tree is named the Callery pear in memory of the French man, Joseph Marie Callery, who brought the plant from China to Europe.

Symbolism

Lust, Love, resilience

Usages

Garden Use
Callery pear is common in many home and public gardens, prized for its luscious white flowers and attractive foliage. Gardeners who like to attract pollinators or simply like an easy and fast-growing flowering ornamental tree typically go for callery pear. Often grown in cottage and courtyard gardens, it works well when planted with dwarf lilac, African marigolds, and clover.

Scientific Classification

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_adj Adjust This cookie provides mobile analytics and attribution services that enable us to measure and analyze the effectiveness of marketing campaigns, certain events and actions within the Application. Learn more here. 1 Year
Cookie Name
_fbp
Source
Facebook Pixel
Purpose
A conversion pixel tracking that we use for retargeting campaigns. Learn more here.
Lifespan
1 Year

Cookie Name
_adj
Source
Adjust
Purpose
This cookie provides mobile analytics and attribution services that enable us to measure and analyze the effectiveness of marketing campaigns, certain events and actions within the Application. Learn more here.
Lifespan
1 Year
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