Himalayan Evergreen Viburnum is characterized by its robust shrubbery, typically flourishing in woodland edges and forest clearings. It boasts dark, glossy leaves which emit a strong, unpleasant odor when crushed—an evolutionary adaptation likely to deter herbivores. Spring sees himalayan Evergreen Viburnum adorned with small, white, often unpleasantly scented blooms, later giving way to bluish-black berries that attract birds and contribute to seed dissemination.
Common Pests & Diseases About Himalayan Evergreen Viburnum
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Common issues for Himalayan Evergreen Viburnum based on 10 million real cases
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Leaf wilting
Leaf wilting in Himalayan Evergreen Viburnum represents a physiological stress response that can severely impact plant vitality. This condition reduces photosynthesis, impedes growth, and can lead to plant death if unmanaged.
Leaf beetles
Leaf beetles are a class of colored insects 1 to 2 cm in size. They gnaw on leaves and petals resulting in small, round holes scattered over the surface.
Solutions: For less serious cases: Remove beetles, nymphs, and eggs. Remove all life stages of the beetles and kill them by placing them in a bucket of warm, soapy water. This can be done more easily by placing the bucket under affected leaves and shaking the plant. This method is most effective in the afternoon when leaf beetles are more active. Always dispose of insects in a sealed bag or container to avoid escape and spread. To treat more serious infestations: Apply organic insecticides. Use naturally-derived insecticides before moving on to synthetic insecticides. Neem oil and pyrethrum are naturally-derived insecticides that should be applied following label instructions. Apply synthetic insecticides. Examples of insecticides effective for leaf beetles include carbaryl, permethrin, and bifenthrin. Apply insecticides according to label instructions.
Flower withering
Flowers may dry out due to a sudden change in environment or because the plant has completed its normal flowering period.
Solutions: If flower withering is a natural progression due to age, there is nothing that can be done to slow or stop the process. Once hormones within the plant begin the process of senescence, it’s irreversible. For lack of water, immediately water the plant using room temperature rainwater, bottled spring water, or filtered tap water. Water container plants until excess water drains out the bottom; water in-ground plants until the soil is soaked but there isn’t standing water on the surface. In the event of nutritional deficiencies, the best solution is to use a granular or water-soluble liquid fertilizer, and apply it to the soil at about half the recommended dosage. Keep it off the leaves and make sure granular products are watered into the soil well. If the plant is infected with a bacterial or fungal pathogen, there is no course of treatment that cures the diseased plants. The best solution is to remove the infected plants and dispose of the plant material off-site. Do not put in a compost pile.
Caterpillars
Caterpillars are fleshy moth or butterfly larvae that come in an array of colors, patterns, and even hairstyles. They chew on leaves and flower petals, creating large, irregular holes.
Solutions: Even though caterpillars are diverse, they all chew on plant parts and can cause significant damage if present in large numbers. For severe cases: Apply insecticide. For an organic solution, spray plants with a Bacillus thuringiensis (Bt), which specifically affects the larval stage of moths and butterflies. Be sure to coat plants, since caterpillars need to ingest Bt for it to be effective. This will not harm other insects. Spray a chili extract. Chili seeds can be cooked in water to make a spicy spray that caterpillars don't like. Spray this mixture on the plants, but be aware it will also be spicy to humans. Introduce beneficial insects. Release beneficial insects to the garden that eat caterpillars, such as parasitic wasps. For less severe cases: Hand pick. Using gloves, pick off caterpillars on plants and dispose of them in a bucket of soapy water. Dust plants with diatomaceous earth. This powder is harmless to humans but irritates caterpillars. Therefore, it will make it difficult for caterpillars to move and eat.
Leaf wilting
Overview
Symptom
Causes
Treatment
Prevention
Active Period
What is Leaf wilting Disease on Himalayan Evergreen Viburnum?
Leaf wilting in Himalayan Evergreen Viburnum represents a physiological stress response that can severely impact plant vitality. This condition reduces photosynthesis, impedes growth, and can lead to plant death if unmanaged.
Symptom Analysis
Wilting in Himalayan Evergreen Viburnum primarily affects the leaves, which begin to droop and lose their rigidity. This can progress to browning edges, and in severe cases, entire branches may wilt and die.
What Causes Leaf wilting Disease on Himalayan Evergreen Viburnum?
1
Environmental Stress
Factors like drought, heat, and poor soil conditions can cause leaf wilting.
2
Pathogens
Fungal or bacterial infections can infiltrate through roots or damaged tissues, leading to wilting symptoms.
How to Treat Leaf wilting Disease on Himalayan Evergreen Viburnum?
1
Non pesticide
Proper Watering: Ensure even, sufficient watering, avoiding water stress.
Mulching: Apply organic mulch around the base to help retain soil moisture.
2
Pesticide
Fungicidal sprays: Apply approved fungicidal sprays if infection is confirmed to be fungal.
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Leaf beetles
Leaf beetles are a class of colored insects 1 to 2 cm in size. They gnaw on leaves and petals resulting in small, round holes scattered over the surface.
Overview
Leaf beetles range in size from 1.5 mm to 2 cm. Both adult beetles and their larvae eat the leaves of many different types of plants. There are over 35,000 different species of leaf beetles, in a variety of colors including gold, green, yellow-striped, and red striped. Some of these have been mistaken for ladybirds because of their shape and coloring. They can be oval, round, or elongated in shape. These insect pests are most active in spring and summer.
If not controlled, leaf beetles can do a lot of damage to vegetable crops and ornamental plants. They feed on the leaves, flowers, stems, roots, and fruits of different plants. They can fly, which means it's easy for them to move from one plant to another. Some species of leaf beetles only target one specific crop, while others will target many different types of plants. Although a lot of the damage that they cause is cosmetic, an infestation can weaken a plant and leave it prone to other more problematic diseases.
Symptom Analysis
The first signs of a leaf beetles infestation are small visible holes in leaves. Leaves then become discolored and dark beetle droppings can be seen. As the leaves turn yellow and brown, they will drop off the plant onto the ground. Some leaves will appear skeletonized with only the veins still remaining.
Infestation begins in spring, when the adult beetles emerge from the soil and lay their eggs on the leaves of plants. When these eggs hatch, the young nymphs start munching on the leaves as they grow up. Once leaf beetles are large and mature, they'll fall to the ground and pupate in the soil over winter before starting the cycle all over again.
Leaf beetles also eat holes in fruits and vegetables. These can be seen as small round holes that sometimes have a larger brown area surrounding them.
Solutions
For less serious cases:
Remove beetles, nymphs, and eggs. Remove all life stages of the beetles and kill them by placing them in a bucket of warm, soapy water. This can be done more easily by placing the bucket under affected leaves and shaking the plant. This method is most effective in the afternoon when leaf beetles are more active. Always dispose of insects in a sealed bag or container to avoid escape and spread.
To treat more serious infestations:
Apply organic insecticides. Use naturally-derived insecticides before moving on to synthetic insecticides. Neem oil and pyrethrum are naturally-derived insecticides that should be applied following label instructions.
Apply synthetic insecticides. Examples of insecticides effective for leaf beetles include carbaryl, permethrin, and bifenthrin. Apply insecticides according to label instructions.
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Flower withering
Flowers may dry out due to a sudden change in environment or because the plant has completed its normal flowering period.
Overview
Flower withering occurs when flowers become weak, droopy, wilted, or faded until they can’t be revived. During withering, they begin to wrinkle and shrink until the flower becomes completely dry or dead.
Any flowers, regardless of the plant type or the climate they are grown in, are susceptible to withering. It is a worldwide problem across houseplants, herbs, flowering ornamentals, trees, shrubs, garden vegetables, and food crops.
Unlike wilting—which withering is often confused with—withering can be caused by different things and is often due to more than a lack of water. Withering can be fatal in severe cases.
Symptom Analysis
Flower withering progresses from very mild cases to severe occurrences that kill the flower. The severity of the symptoms is related to the cause and how long the condition is allowed to progress before action is taken.
Wilted, droopy flowers
Petals and leaves begin to wrinkle
Brown papery streaks or spots appear on the petals and leaf tips
Flowerhead shrink in size
Petal color fades
Yellowing leaves
Complete death of the flower
Disease Cause
The main causes of flower withering include natural age progress, lack of water, nutritional deficiencies, and bacterial or fungal diseases. It’s critical to determine the underlying cause when flower withering is noticed. This will guide the best course of action, if treatment is possible.
Check the soil for moisture and then closely examine the entire plant for signs of nutrient deficiencies. If neither of those appears to be the cause then cut open the stem below a flower. If a cross-section reveals brown or rust-colored stains it is safe to assume that this is a bacterial or fungal infection.
If the flower is nearing the end of its normal lifespan, genetic coding within the plant increases the production of ethylene, a phytohormone that controls senescence, or cell aging and death. Cell division stops and the plant begins breaking down resources within the flower to use in other parts of the plant.
In all other cases, flower withering happens when the plant seals off the stem as a defense mechanism, stopping transport within the vascular system. This prevents further water loss through the flowers but also stops bacteria and fungi from moving to healthy parts of the plant. Once water and nutrient transport stops, the flower begins to wither and ultimately die.
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Caterpillars
Caterpillars are fleshy moth or butterfly larvae that come in an array of colors, patterns, and even hairstyles. They chew on leaves and flower petals, creating large, irregular holes.
Overview
Caterpillars can cause problems for home gardeners. If not managed, these insects can defoliate a plant in just a matter of days. However, home gardeners face a challenge because these caterpillars eventually turn into beautiful butterflies and moths, which are important for pollination and the general ecosystem.
There are thousands of different species of caterpillars and many will only target certain plants. If caterpillars are posing a problem, they can be removed by hand, or gardeners can use insect-proof netting to protect their valuable plants.
Symptom Analysis
Caterpillars are the larvae of butterflies and moths. During the warmer months, butterflies and moths that visit gardens will lay their eggs on the underside of leaves.
When the tiny eggs hatch, the young larvae emerge and start feeding on the leaves of the plant. Depending on how many larvae have hatched, they can easily defoliate the plant in a very short period of time. Caterpillars will shed their skin as they grow, around 4 or 5 times during this feeding cycle.
Symptoms of caterpillars eating plants appear as holes in the leaves. The edges of the leaves may be eaten away as well, and flowers can be affected as well.
Some are easy to see, but others need to be searched for. This is because their bodies are often camouflaged to look like part of the plant. Gardeners need to look carefully along the stems of the plant as well as under the leaves. Also, look for tiny white, yellow, or brown eggs that can be found in groups on the underside of leaves.
Once the caterpillar is fully grown, it transforms into a pupa or chrysalis. Then, after a period of time that varies according to the species, a butterfly or moth will emerge from the pupa and the cycle begins again.
Solutions
Even though caterpillars are diverse, they all chew on plant parts and can cause significant damage if present in large numbers.
For severe cases:
Apply insecticide. For an organic solution, spray plants with a Bacillus thuringiensis (Bt), which specifically affects the larval stage of moths and butterflies. Be sure to coat plants, since caterpillars need to ingest Bt for it to be effective. This will not harm other insects.
Spray a chili extract. Chili seeds can be cooked in water to make a spicy spray that caterpillars don't like. Spray this mixture on the plants, but be aware it will also be spicy to humans.
Introduce beneficial insects. Release beneficial insects to the garden that eat caterpillars, such as parasitic wasps.
For less severe cases:
Hand pick. Using gloves, pick off caterpillars on plants and dispose of them in a bucket of soapy water.
Dust plants with diatomaceous earth. This powder is harmless to humans but irritates caterpillars. Therefore, it will make it difficult for caterpillars to move and eat.
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Distribution of Himalayan Evergreen Viburnum
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Distribution Map of Himalayan Evergreen Viburnum
The himalayan Evergreen Viburnum is a plant originally native to the eastern Himalayas and adjacent regions in Asia, which encompasses areas within the subtropics and parts of Southeast Asia. In addition to its natural range, himalayan Evergreen Viburnum has been introduced and cultivated in various locales, expanding its presence beyond its indigenous territories.
Native
Cultivated
Invasive
Potentially invasive
Exotic
No species reported
More Info on Himalayan Evergreen Viburnum Growth and Care
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Basic Care Guide
Common Pests & Diseases
Transplant
5-10 feet
For himalayan Evergreen Viburnum, the quintessential time to transplant is from the awakening of early spring until the cusp of summer or as autumn wanes into the heart of winter, ensuring a stress-free adjustment. Choose a site with adequate sunlight and well-draining soil. For a thriving transplant, delicately balance sun exposure with dappled shade and ensure consistent moisture.
A robust, evergreen shrub, himalayan Evergreen Viburnum thrives with selective pruning to maintain shape and encourage healthy growth. Prune in late winter or early spring before new growth starts. Remove dead or weak branches, thin out dense areas to increase light penetration, and trim back overgrown parts to foster a sturdy structure. Periodic pruning enhances flowering and prevents common diseases by improving air circulation within the plant's canopy.
Leaf wilting in Himalayan Evergreen Viburnum represents a physiological stress response that can severely impact plant vitality. This condition reduces photosynthesis, impedes growth, and can lead to plant death if unmanaged.
Read More
Spots
Spots is a common fungal disease that affects 'Himalayan Evergreen Viburnum', causing discoloration and degradation of foliage which can impair overall plant health and vigor if untreated.
Read More
Dark spots
Dark spots on Himalayan Evergreen Viburnum refer to fungal diseases causing unsightly black or brown spots on leaves, leading to premature leaf drop and reduced vigor. Essential for maintaining plant health, these spots can cause significant aesthetic and physiological damage.
Read More
Wounds
Wounds on Himalayan Evergreen Viburnum most commonly arise from physical damage or pest activities, leading to lesions that can impair growth and aesthetic value. Proper care and timely measures are crucial for managing health and mitigating effects.
Read More
Flower withering
Flower withering is a disease affecting Himalayan Evergreen Viburnum, causing premature flower loss and potential decline in overall plant vigor. This can significantly impact the plant's aesthetic and ecological value.
Read More
Yellow edges
Yellow edges, a disease affecting Himalayan Evergreen Viburnum, manifests as discoloration primarily on the leaf margins. This limitation to photosynthesis affects the plant's growth. The disease flourishes in particular environmental conditions, leading to widespread foliage damage if not managed.
Read More
Dark blotch
Dark blotch is a fungal disease affecting Himalayan Evergreen Viburnum, characterized by uneven dark spots on leaves and sometimes stems. It leads to premature leaf drop, reduced aesthetic value, and can weaken Himalayan Evergreen Viburnum.
Read More
Flower wilting
Flower wilting in Himalayan Evergreen Viburnum is a disease that severely affects the plant's blossoms and leaves, leading to premature drooping and death. The disease can spread quickly, making early identification and intervention crucial for the health of Himalayan Evergreen Viburnum.
Read More
Leaf white mold
Leaf white mold significantly impacts the foliage of Himalayan Evergreen Viburnum, resulting in reduced vigor, aesthetic quality, and potentially fatal outcomes if untreated. It is caused by a fungal pathogen and is exacerbated in humid conditions.
Read More
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Himalayan Evergreen Viburnum
Viburnum foetidum
Himalayan Evergreen Viburnum is characterized by its robust shrubbery, typically flourishing in woodland edges and forest clearings. It boasts dark, glossy leaves which emit a strong, unpleasant odor when crushed—an evolutionary adaptation likely to deter herbivores. Spring sees himalayan Evergreen Viburnum adorned with small, white, often unpleasantly scented blooms, later giving way to bluish-black berries that attract birds and contribute to seed dissemination.
Hardiness Zones
6 to 9
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Common Pests & Diseases About Himalayan Evergreen Viburnum
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Common issues for Himalayan Evergreen Viburnum based on 10 million real cases
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Leaf wilting
Leaf wilting in Himalayan Evergreen Viburnum represents a physiological stress response that can severely impact plant vitality. This condition reduces photosynthesis, impedes growth, and can lead to plant death if unmanaged.
Learn More About the Leaf wilting
Leaf beetles
Leaf beetles are a class of colored insects 1 to 2 cm in size. They gnaw on leaves and petals resulting in small, round holes scattered over the surface.
Solutions: For less serious cases: Remove beetles, nymphs, and eggs. Remove all life stages of the beetles and kill them by placing them in a bucket of warm, soapy water. This can be done more easily by placing the bucket under affected leaves and shaking the plant. This method is most effective in the afternoon when leaf beetles are more active. Always dispose of insects in a sealed bag or container to avoid escape and spread. To treat more serious infestations: Apply organic insecticides. Use naturally-derived insecticides before moving on to synthetic insecticides. Neem oil and pyrethrum are naturally-derived insecticides that should be applied following label instructions. Apply synthetic insecticides. Examples of insecticides effective for leaf beetles include carbaryl, permethrin, and bifenthrin. Apply insecticides according to label instructions.
Learn More About the Leaf beetles
Flower withering
Flowers may dry out due to a sudden change in environment or because the plant has completed its normal flowering period.
Solutions: If flower withering is a natural progression due to age, there is nothing that can be done to slow or stop the process. Once hormones within the plant begin the process of senescence, it’s irreversible. For lack of water, immediately water the plant using room temperature rainwater, bottled spring water, or filtered tap water. Water container plants until excess water drains out the bottom; water in-ground plants until the soil is soaked but there isn’t standing water on the surface. In the event of nutritional deficiencies, the best solution is to use a granular or water-soluble liquid fertilizer, and apply it to the soil at about half the recommended dosage. Keep it off the leaves and make sure granular products are watered into the soil well. If the plant is infected with a bacterial or fungal pathogen, there is no course of treatment that cures the diseased plants. The best solution is to remove the infected plants and dispose of the plant material off-site. Do not put in a compost pile.
Learn More About the Flower withering
Caterpillars
Caterpillars are fleshy moth or butterfly larvae that come in an array of colors, patterns, and even hairstyles. They chew on leaves and flower petals, creating large, irregular holes.
Solutions: Even though caterpillars are diverse, they all chew on plant parts and can cause significant damage if present in large numbers. For severe cases: Apply insecticide. For an organic solution, spray plants with a Bacillus thuringiensis (Bt), which specifically affects the larval stage of moths and butterflies. Be sure to coat plants, since caterpillars need to ingest Bt for it to be effective. This will not harm other insects. Spray a chili extract. Chili seeds can be cooked in water to make a spicy spray that caterpillars don't like. Spray this mixture on the plants, but be aware it will also be spicy to humans. Introduce beneficial insects. Release beneficial insects to the garden that eat caterpillars, such as parasitic wasps. For less severe cases: Hand pick. Using gloves, pick off caterpillars on plants and dispose of them in a bucket of soapy water. Dust plants with diatomaceous earth. This powder is harmless to humans but irritates caterpillars. Therefore, it will make it difficult for caterpillars to move and eat.
Learn More About the Caterpillars
Leaf wilting
Overview
Symptom
Causes
Treatment
Prevention
Active Period
What is Leaf wilting Disease on Himalayan Evergreen Viburnum?
Leaf wilting in Himalayan Evergreen Viburnum represents a physiological stress response that can severely impact plant vitality. This condition reduces photosynthesis, impedes growth, and can lead to plant death if unmanaged.
Symptom Analysis
Wilting in Himalayan Evergreen Viburnum primarily affects the leaves, which begin to droop and lose their rigidity. This can progress to browning edges, and in severe cases, entire branches may wilt and die.
What Causes Leaf wilting Disease on Himalayan Evergreen Viburnum?
1
Environmental Stress
Factors like drought, heat, and poor soil conditions can cause leaf wilting.
2
Pathogens
Fungal or bacterial infections can infiltrate through roots or damaged tissues, leading to wilting symptoms.
How to Treat Leaf wilting Disease on Himalayan Evergreen Viburnum?
1
Non pesticide
Proper Watering: Ensure even, sufficient watering, avoiding water stress.
Mulching: Apply organic mulch around the base to help retain soil moisture.
2
Pesticide
Fungicidal sprays: Apply approved fungicidal sprays if infection is confirmed to be fungal.
Continue reading in our app - it's better
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Leaf beetles
Leaf beetles are a class of colored insects 1 to 2 cm in size. They gnaw on leaves and petals resulting in small, round holes scattered over the surface.
Overview
Leaf beetles range in size from 1.5 mm to 2 cm. Both adult beetles and their larvae eat the leaves of many different types of plants. There are over 35,000 different species of leaf beetles, in a variety of colors including gold, green, yellow-striped, and red striped. Some of these have been mistaken for ladybirds because of their shape and coloring. They can be oval, round, or elongated in shape. These insect pests are most active in spring and summer.
If not controlled, leaf beetles can do a lot of damage to vegetable crops and ornamental plants. They feed on the leaves, flowers, stems, roots, and fruits of different plants. They can fly, which means it's easy for them to move from one plant to another. Some species of leaf beetles only target one specific crop, while others will target many different types of plants. Although a lot of the damage that they cause is cosmetic, an infestation can weaken a plant and leave it prone to other more problematic diseases.
Symptom Analysis
The first signs of a leaf beetles infestation are small visible holes in leaves. Leaves then become discolored and dark beetle droppings can be seen. As the leaves turn yellow and brown, they will drop off the plant onto the ground. Some leaves will appear skeletonized with only the veins still remaining.
Infestation begins in spring, when the adult beetles emerge from the soil and lay their eggs on the leaves of plants. When these eggs hatch, the young nymphs start munching on the leaves as they grow up. Once leaf beetles are large and mature, they'll fall to the ground and pupate in the soil over winter before starting the cycle all over again.
Leaf beetles also eat holes in fruits and vegetables. These can be seen as small round holes that sometimes have a larger brown area surrounding them.
Solutions
For less serious cases:
Remove beetles, nymphs, and eggs. Remove all life stages of the beetles and kill them by placing them in a bucket of warm, soapy water. This can be done more easily by placing the bucket under affected leaves and shaking the plant. This method is most effective in the afternoon when leaf beetles are more active. Always dispose of insects in a sealed bag or container to avoid escape and spread.
To treat more serious infestations:
Apply organic insecticides. Use naturally-derived insecticides before moving on to synthetic insecticides. Neem oil and pyrethrum are naturally-derived insecticides that should be applied following label instructions.
Apply synthetic insecticides. Examples of insecticides effective for leaf beetles include carbaryl, permethrin, and bifenthrin. Apply insecticides according to label instructions.
Prevention
To prevent infestations of leaf beetles, follow these practices.
Regularly check for beetles. To prevent large pest infestations, be proactive about frequently checking plants for pests and removing them quickly.
Clear debris. Clear weeds and debris to remove areas where these beetles may overwinter and hide.
Attract natural predators. Birds and other insects, such as wasps and ladybugs, are effective natural predators of leaf beetles. Encourage them to visit by including a diverse array of plants to provide habitat and food. Also, avoid applying broad-spectrum herbicides that can harm and kill beneficial insects.
Plant aromatic herbs like mint, garlic, or rosemary, as these can repel leaf beetles.
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Flower withering
Flowers may dry out due to a sudden change in environment or because the plant has completed its normal flowering period.
Overview
Flower withering occurs when flowers become weak, droopy, wilted, or faded until they can’t be revived. During withering, they begin to wrinkle and shrink until the flower becomes completely dry or dead.
Any flowers, regardless of the plant type or the climate they are grown in, are susceptible to withering. It is a worldwide problem across houseplants, herbs, flowering ornamentals, trees, shrubs, garden vegetables, and food crops.
Unlike wilting—which withering is often confused with—withering can be caused by different things and is often due to more than a lack of water. Withering can be fatal in severe cases.
Symptom Analysis
Flower withering progresses from very mild cases to severe occurrences that kill the flower. The severity of the symptoms is related to the cause and how long the condition is allowed to progress before action is taken.
Wilted, droopy flowers
Petals and leaves begin to wrinkle
Brown papery streaks or spots appear on the petals and leaf tips
Flowerhead shrink in size
Petal color fades
Yellowing leaves
Complete death of the flower
Disease Cause
The main causes of flower withering include natural age progress, lack of water, nutritional deficiencies, and bacterial or fungal diseases. It’s critical to determine the underlying cause when flower withering is noticed. This will guide the best course of action, if treatment is possible.
Check the soil for moisture and then closely examine the entire plant for signs of nutrient deficiencies. If neither of those appears to be the cause then cut open the stem below a flower. If a cross-section reveals brown or rust-colored stains it is safe to assume that this is a bacterial or fungal infection.
If the flower is nearing the end of its normal lifespan, genetic coding within the plant increases the production of ethylene, a phytohormone that controls senescence, or cell aging and death. Cell division stops and the plant begins breaking down resources within the flower to use in other parts of the plant.
In all other cases, flower withering happens when the plant seals off the stem as a defense mechanism, stopping transport within the vascular system. This prevents further water loss through the flowers but also stops bacteria and fungi from moving to healthy parts of the plant. Once water and nutrient transport stops, the flower begins to wither and ultimately die.
Solutions
If flower withering is a natural progression due to age, there is nothing that can be done to slow or stop the process. Once hormones within the plant begin the process of senescence, it’s irreversible.
For lack of water, immediately water the plant using room temperature rainwater, bottled spring water, or filtered tap water. Water container plants until excess water drains out the bottom; water in-ground plants until the soil is soaked but there isn’t standing water on the surface.
In the event of nutritional deficiencies, the best solution is to use a granular or water-soluble liquid fertilizer, and apply it to the soil at about half the recommended dosage. Keep it off the leaves and make sure granular products are watered into the soil well.
If the plant is infected with a bacterial or fungal pathogen, there is no course of treatment that cures the diseased plants. The best solution is to remove the infected plants and dispose of the plant material off-site. Do not put in a compost pile.
Prevention
This is definitely one of those instances where prevention is more effective than cure. Here are some preventative measures for avoiding premature flower withering.
Water plants according to their needs -- either keep the soil slightly moist or allow the top inch or two to dry out before watering again.
Fertilize lightly on a consistent basis, depending upon the plant’s growth. Quick-growing plants and those that flower or develop fruit will need more frequent fertilizing than slow-growing plants.
Purchase plants that are certified disease- or pathogen-free.
Look for disease-resistant cultivars.
Isolate plants showing disease symptoms to prevent the spread to neighboring plants.
Practice good plant hygiene by removing any fallen plant material as soon as possible.
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Caterpillars
Caterpillars are fleshy moth or butterfly larvae that come in an array of colors, patterns, and even hairstyles. They chew on leaves and flower petals, creating large, irregular holes.
Overview
Caterpillars can cause problems for home gardeners. If not managed, these insects can defoliate a plant in just a matter of days. However, home gardeners face a challenge because these caterpillars eventually turn into beautiful butterflies and moths, which are important for pollination and the general ecosystem.
There are thousands of different species of caterpillars and many will only target certain plants. If caterpillars are posing a problem, they can be removed by hand, or gardeners can use insect-proof netting to protect their valuable plants.
Symptom Analysis
Caterpillars are the larvae of butterflies and moths. During the warmer months, butterflies and moths that visit gardens will lay their eggs on the underside of leaves.
When the tiny eggs hatch, the young larvae emerge and start feeding on the leaves of the plant. Depending on how many larvae have hatched, they can easily defoliate the plant in a very short period of time. Caterpillars will shed their skin as they grow, around 4 or 5 times during this feeding cycle.
Symptoms of caterpillars eating plants appear as holes in the leaves. The edges of the leaves may be eaten away as well, and flowers can be affected as well.
Some are easy to see, but others need to be searched for. This is because their bodies are often camouflaged to look like part of the plant. Gardeners need to look carefully along the stems of the plant as well as under the leaves. Also, look for tiny white, yellow, or brown eggs that can be found in groups on the underside of leaves.
Once the caterpillar is fully grown, it transforms into a pupa or chrysalis. Then, after a period of time that varies according to the species, a butterfly or moth will emerge from the pupa and the cycle begins again.
Solutions
Even though caterpillars are diverse, they all chew on plant parts and can cause significant damage if present in large numbers.
For severe cases:
Apply insecticide. For an organic solution, spray plants with a Bacillus thuringiensis (Bt), which specifically affects the larval stage of moths and butterflies. Be sure to coat plants, since caterpillars need to ingest Bt for it to be effective. This will not harm other insects.
Spray a chili extract. Chili seeds can be cooked in water to make a spicy spray that caterpillars don't like. Spray this mixture on the plants, but be aware it will also be spicy to humans.
Introduce beneficial insects. Release beneficial insects to the garden that eat caterpillars, such as parasitic wasps.
For less severe cases:
Hand pick. Using gloves, pick off caterpillars on plants and dispose of them in a bucket of soapy water.
Dust plants with diatomaceous earth. This powder is harmless to humans but irritates caterpillars. Therefore, it will make it difficult for caterpillars to move and eat.
Prevention
Prevention may require less effort than attempts to eradicate infestations that have already begun. Here are our top steps for prevention:
Monitor plants. Check plants regularly for caterpillar eggs on leaves. If they do not belong to an endangered species, they should be squished.
Use insect netting. Cover plants with insect netting to prevent butterflies and moths from laying eggs on plants.
Apply diatomaceous earth. Apply DE to plants early in the season and reapply after rain.
Encourage plant diversity. This will attract predatory insects including parasitic wasps.
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Distribution of Himalayan Evergreen Viburnum
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Distribution Map of Himalayan Evergreen Viburnum
The himalayan Evergreen Viburnum is a plant originally native to the eastern Himalayas and adjacent regions in Asia, which encompasses areas within the subtropics and parts of Southeast Asia. In addition to its natural range, himalayan Evergreen Viburnum has been introduced and cultivated in various locales, expanding its presence beyond its indigenous territories.
Native
Cultivated
Invasive
Potentially invasive
Exotic
No species reported
More Info on Himalayan Evergreen Viburnum Growth and Care
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