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Blue wild indigo 'Purple Smoke'
Baptisia australis 'Purple Smoke'
Also known as : Indigo weed 'Purple Smoke', Horsefly weed 'Purple Smoke'
A very old wild indigo hybrid, the blue wild indigo 'Purple Smoke' is a slightly larger but compact variety of its parent. Blue wild indigo 'Purple Smoke' was encountered by chance in the North Carolina Botanical Garden. Its nickname, the 'Purple Smoke', derives from its smoky purple flowers. It is beloved by gardeners for its attraction of pollinators and its resistance to deer and rabbits.
Hardiness Zones
3 to 10
Care Guide for Blue wild indigo 'Purple Smoke'
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Find the best spots for them to optimize their health, simply using your phone.
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Blue wild indigo 'Purple Smoke'
Sunlight
Full sun
Hardiness Zones
3 to 10
Key Facts About Blue wild indigo 'Purple Smoke'
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Attributes of Blue wild indigo 'Purple Smoke'
Lifespan
Perennial
Plant Type
Herb
Plant Height
91 cm to 1.2 m
Spread
90 cm to 1.2 m
Leaf Color
Green
Flower Size
2 cm
Flower Color
Purple
Leaf type
Deciduous
Ideal Temperature
0 - 35 ℃
Scientific Classification of Blue wild indigo 'Purple Smoke'
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Common Pests & Diseases About Blue wild indigo 'Purple Smoke'
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Common issues for Blue wild indigo 'Purple Smoke' based on 10 million real cases
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Flower withering
Flower withering in Blue wild indigo 'Purple Smoke' primarily refers to the gradual decline and premature death of flowers and foliage, disrupting the aesthetic and vigor of the plant.
Nutrient deficiencies
A lack of nutrients will cause a widespread yellowing of the leaves. The yellowing may begin at the base or top of the plant.
Solutions: There are several easy ways to remedy the nutrient deficiencies in soils. Use a water-soluble fertilizer. Fertilizers will include most or all of the macro and micro-nutrients the plants need to thrive. Adding some fertilizer to the soil will make those nutrients available and can combat deficiencies. Regularly apply organic fertilizer pellets. Organic fertilizers such as animal manures and bonemeal can supply plants with all the nutrients that they need to grow strong and healthy. Apply compost. Though not as finely tuned as artificial fertilizer, compost can nevertheless be rich in important nutrients and should be applied to the soil regularly. Apply nutrients via foliar application. In addition to supplementing the soil with nutrients, foliar fertilizer can be applied directly to the plant's leaves. Nutrients offered via foliar application are often taken up even quicker than those put in the soil, so the foliar application can be great for swiftly addressing specific deficiencies.
Root rot
Soft root rot can be caused by over-watering or pathogenic infection.
Solutions: These are the solutions for root rot: Stop applying water and allow the plant to dry out. In the case of potted plants, the gardener can remove plant from its container and lay it on a sheet of paper in a shady spot to speed the drying process. Cut away black mushy root material until healthy white material is reached. Sprinkle root ball with anti-fungal powder. Repot using sterilized potting mixture but don't water for first couple of days. Ensure that the new pot offers adequate drainage. Terracotta pots can absorb moisture into their walls. Adopt an appropriate watering regime. For most potted plants, refrain from watering until the first inch or two of the soil is dry to the touch. Even plants that prefer to be kept "evenly moist" should never be allowed to sit in soggy soil. Outdoor plants should not be receiving so much water that it pools at the surface of the soil.
Black spot
Infection by the black spot pathogen causes black spots or patches to appear on leaves.
Solutions: Some steps to take to address black spot include: Prune away any infected leaves, cleaning the pruners between plants with a 10% bleach solution so that the fungus does not spread to healthy leaves. Don't compost pruned plant parts as the spores can linger in the soil for a long period of time - instead, dispose of them in the trash. Use an approved fungicide such as Trifloxystrobin, Chlorothalonil, Maneb, or Myclobutanil. Use a spreader in the fungicide spray to ensure better coverage.
Flower withering
Overview
Symptom
Causes
Treatment
Prevention
Active Period
What is Flower withering Disease on Blue wild indigo 'Purple Smoke'?
Flower withering in Blue wild indigo 'Purple Smoke' primarily refers to the gradual decline and premature death of flowers and foliage, disrupting the aesthetic and vigor of the plant.
Symptom Analysis
In 'Baptisia australandelis 'Purple Smoke', symptoms include wilting and discoloration of flowers, followed by the browning and dropping of leaves, significantly affecting the plant's overall health.
What Causes Flower withering Disease on Blue wild indigo 'Purple Smoke'?
Fungal infection
Certain fungi targeting weakened or stressed plants can cause flower withering.
Environmental stress
Factors like drought, excessive moisture, or poor soil conditions can precipitate the disease.
How to Treat Flower withering Disease on Blue wild indigo 'Purple Smoke'?
Non pesticide
Proper watering: Maintaining a consistent watering schedule to avoid stress from drought or waterlogging.
Soil management: Ensuring well-drained and nutrient-rich soil to support plant health.
Pesticide
Fungicidal sprays: Applying approved fungicides at the first sign of infection to prevent spread.
Continue reading in our app - it's better
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Scan the QR code with your phone camera to download the app
Nutrient deficiencies
A lack of nutrients will cause a widespread yellowing of the leaves. The yellowing may begin at the base or top of the plant.
Overview
Nutrient deficiencies can be seen in many different ways on plants. Basically, the lack of nutrients will inhibit plant growth, produce weak stems and leaves, and leave plants open to infection from pests and diseases. Plants use the nutrients from the soil to help them with photosynthesis. This, in turn, produces healthy plant growth. Plants that lack adequate amounts of nutrients will look lackluster and unhealthy. Eventually, if this is not addressed, it will cause the plants to die. The most important nutrients that plants need are nitrogen, phosphorus, potassium, calcium, magnesium, and sulfur. Additionally, plants require small amounts of micronutrients such as iron, boron, manganese, zinc, copper, and molybdenum.
Symptom Analysis
A common sign that plants are experiencing nutrient deficiencies is the yellowing of leaves. This may be an overall yellowing or leaves that are yellow but still have green veins. These leaves will eventually brown off and die.
Another sign is the loss of plant vigor. The plants may not be growing as well as they should or their growth may be stunted.
Below are some common symptoms that appear when plants are lacking in nutrients.
Nitrogen (N): Inner, older leaves yellow first. If the deficiency is severe, yellowing progresses outward to newer growth.
Potassium (K): Leaf edges may turn brown and crinkly, with a yellowing layer forming just inside of the edge. Older leaves tend to be impacted first.
Phosphorus (P): Lack of vigorous growth. Plants will appear stunted.
Zinc (Zn): Yellowing tends to occur first at the base of the leaf.
Copper (Cu): Newer leaves begin to yellow first, with older leaves yellowing only if the deficiency becomes severe.
Boron (B): Newer leaves are impacted first. Foliage may also become particularly brittle in cases of boron deficiency.
Disease Cause
There are several factors that can lead to nutrient deficiencies, a situation where plants are not receiving the nutrients that they need. This could be because they are planted in nutrient-deficient soils, or that the soil's pH is too high or low. Incorrect soil pH can lock up certain nutrients, thus making them unavailable to plants. Lack of soil moisture can also be a problem, because plants need water to be able to absorb the nutrients from the soil.
Continue reading in our app - it's better
A database of 400000+ plants and unlimited guides at your fingertips...
Scan the QR code with your phone camera to download the app
Root rot
Soft root rot can be caused by over-watering or pathogenic infection.
Overview
Root rot is a common and devastating problem that can infect trees, shrubs and other plants, often with fatal results. It is caused by excessive moisture in the soil, which activates a fungus that can lie dormant in soil and only emerge when conditions are ideal (soggy and wet). Because primary symptoms are hidden beneath the soil, the gardener may not become aware of the problem until upper sections of the plant start to show signs of distress.
Symptom Analysis
Early symptoms may occur below ground and not be obvious until they advance into more visible plant material. Above ground the gardener may be alerted by:
- Wilting and yellowing of the leaves.
- Softening and discoloration of the stems.
At this stage it is worth making a closer examination of what is going on below the soil.
- Soil will feel noticeably damp and boggy.
- There will often be a swampy smell emanating from the soil.
- Examination of the roots will reveal black or dark brown mushy material.
Disease Cause
Root rot is caused by plant pathogens in the soil which are activated by overly-wet conditions. They invade the root material, which begins to die and rot. With roots no longer functioning effectively, there is a shortage of oxygen and nutrients being carried to the upper sections of the plant. These will show the signs of distress that may be what first alerts the gardener to this issue.
Continue reading in our app - it's better
A database of 400000+ plants and unlimited guides at your fingertips...
Scan the QR code with your phone camera to download the app
Black spot
Infection by the black spot pathogen causes black spots or patches to appear on leaves.
Overview
Black spot is a fungus that largely attacks leaves on a variety of ornamental plants, leaving them covered in dark spots ringed with yellow, and eventually killing them. The fungus is often simply unsightly, but if it infects the whole plant it can interfere with photosynthesis by killing too many leaves. Because of this, it is important to be aware of the best methods for preventing and treating this diseases should it occur in the garden.
Symptom Analysis
Here are a few of the most common symptoms of black spot:
- The plant has developed small black spots along the leaves.
- These spots be small, circular, and clustered together, or they may have a splotchy appearance and take up large portions of the leaves.
- The fungus may also affect plant canes, where lesions start purple and then turn black.
- The plant may suffer premature leaf drop.
Though most forms of black spot fungus pose little risk to a plant's overall health, many gardeners find them unsightly. Severe cases can also weaken a plant, so it becomes more susceptible to other pathogens and diseases.
Disease Cause
Black spot is spread by various types of fungi, which differ slightly depending on whether they are in their sexual or asexual stages.
The fungal spores linger over the winter in fallen leaves and lesions on canes. In the spring, the spores are splashed up onto the leaves, causing infection within seven hours of moisture and when temperatures range between 24 to 29 ℃ with a high relative humidity.
In just two weeks, thousands of additional spores are produced, making it easy for the disease to infect nearby healthy plants as well.
There are several factors that could make a plant more likely to suffer a black spot infection. Here are some of the most common:
- Exposure to infected plants or mulch (the fungus overwinters on dead leaves)
- Weakening from physical damage, pest infestation or other infections.
- Increased periods of wet, humid, warm weather – or exposure to overhead watering
- Plants growing too close together
Continue reading in our app - it's better
A database of 400000+ plants and unlimited guides at your fingertips...
Scan the QR code with your phone camera to download the app
More Info on Blue Wild Indigo 'purple Smoke' Growth and Care
Feedback
Common Pests & Diseases
Flower withering
Flower withering in Blue wild indigo 'Purple Smoke' primarily refers to the gradual decline and premature death of flowers and foliage, disrupting the aesthetic and vigor of the plant.
Read More
Leaf wilting
Leaf wilting in Blue wild indigo 'Purple Smoke' generally results from inadequate water supply, pest infestations, or diseases such as Fusarium spp. This condition drastically impedes the plant's ability to conduct photosynthesis, leading to stunted growth and premature leaf drop.
Read More
Leaf rot
Leaf rot is a fungal disease affecting Blue wild indigo 'Purple Smoke', characterized by decay and discoloration of leaves, leading potentially to plant death if untreated. Management includes proper sanitation and fungicide applications.
Read More
Flower wilting
Flower wilting in Blue wild indigo 'Purple Smoke' primarily results from fungal infections or environmental stress, leading to drooping and discoloration that can severely impact plant health and aesthetics.
Read More
Dark blotch
Dark blotch is a fungal disease impacting Blue wild indigo 'Purple Smoke' by causing unsightly lesions on leaves and stems, potentially resulting in premature leaf drop and reduced vigor of the plant.
Read More
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Nearly 5 years of research
80+ scholars in botany and gardening
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About
Care Guide
More Info
Pests & Diseases
More About How-Tos
Blue wild indigo 'Purple Smoke'
Baptisia australis 'Purple Smoke'
Also known as: Indigo weed 'Purple Smoke', Horsefly weed 'Purple Smoke'
A very old wild indigo hybrid, the blue wild indigo 'Purple Smoke' is a slightly larger but compact variety of its parent. Blue wild indigo 'Purple Smoke' was encountered by chance in the North Carolina Botanical Garden. Its nickname, the 'Purple Smoke', derives from its smoky purple flowers. It is beloved by gardeners for its attraction of pollinators and its resistance to deer and rabbits.
Hardiness Zones
3 to 10
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Care Guide for Blue wild indigo 'Purple Smoke'
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Soil Care
Clay, Chalky, Slightly acidic, Neutral, Slightly alkaline
Ideal Lighting
Full sun
Ideal Temperature
3 to 10
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Find the best spots for them to optimize their health, simply using your phone.
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Key Facts About Blue wild indigo 'Purple Smoke'
Feedback
Attributes of Blue wild indigo 'Purple Smoke'
Lifespan
Perennial
Plant Type
Herb
Plant Height
91 cm to 1.2 m
Spread
90 cm to 1.2 m
Leaf Color
Green
Flower Size
2 cm
Flower Color
Purple
Leaf type
Deciduous
Ideal Temperature
0 - 35 ℃
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Scientific Classification of Blue wild indigo 'Purple Smoke'
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Common Pests & Diseases About Blue wild indigo 'Purple Smoke'
Feedback
Common issues for Blue wild indigo 'Purple Smoke' based on 10 million real cases
Plant disease auto-diagnose & prevention
AI-powered plant doctor helps you diagnose plant problems in seconds.
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Flower withering
Flower withering in Blue wild indigo 'Purple Smoke' primarily refers to the gradual decline and premature death of flowers and foliage, disrupting the aesthetic and vigor of the plant.
Learn More About the Flower withering ![more]()
Nutrient deficiencies
A lack of nutrients will cause a widespread yellowing of the leaves. The yellowing may begin at the base or top of the plant.
Solutions: There are several easy ways to remedy the nutrient deficiencies in soils. Use a water-soluble fertilizer. Fertilizers will include most or all of the macro and micro-nutrients the plants need to thrive. Adding some fertilizer to the soil will make those nutrients available and can combat deficiencies. Regularly apply organic fertilizer pellets. Organic fertilizers such as animal manures and bonemeal can supply plants with all the nutrients that they need to grow strong and healthy. Apply compost. Though not as finely tuned as artificial fertilizer, compost can nevertheless be rich in important nutrients and should be applied to the soil regularly. Apply nutrients via foliar application. In addition to supplementing the soil with nutrients, foliar fertilizer can be applied directly to the plant's leaves. Nutrients offered via foliar application are often taken up even quicker than those put in the soil, so the foliar application can be great for swiftly addressing specific deficiencies.
Learn More About the Nutrient deficiencies ![more]()
Root rot
Soft root rot can be caused by over-watering or pathogenic infection.
Solutions: These are the solutions for root rot: Stop applying water and allow the plant to dry out. In the case of potted plants, the gardener can remove plant from its container and lay it on a sheet of paper in a shady spot to speed the drying process. Cut away black mushy root material until healthy white material is reached. Sprinkle root ball with anti-fungal powder. Repot using sterilized potting mixture but don't water for first couple of days. Ensure that the new pot offers adequate drainage. Terracotta pots can absorb moisture into their walls. Adopt an appropriate watering regime. For most potted plants, refrain from watering until the first inch or two of the soil is dry to the touch. Even plants that prefer to be kept "evenly moist" should never be allowed to sit in soggy soil. Outdoor plants should not be receiving so much water that it pools at the surface of the soil.
Learn More About the Root rot ![more]()
Black spot
Infection by the black spot pathogen causes black spots or patches to appear on leaves.
Solutions: Some steps to take to address black spot include: Prune away any infected leaves, cleaning the pruners between plants with a 10% bleach solution so that the fungus does not spread to healthy leaves. Don't compost pruned plant parts as the spores can linger in the soil for a long period of time - instead, dispose of them in the trash. Use an approved fungicide such as Trifloxystrobin, Chlorothalonil, Maneb, or Myclobutanil. Use a spreader in the fungicide spray to ensure better coverage.
Learn More About the Black spot ![more]()
Flower withering
Overview
Symptom
Causes
Treatment
Prevention
Active Period
What is Flower withering Disease on Blue wild indigo 'Purple Smoke'?
Flower withering in Blue wild indigo 'Purple Smoke' primarily refers to the gradual decline and premature death of flowers and foliage, disrupting the aesthetic and vigor of the plant.
Symptom Analysis
In 'Baptisia australandelis 'Purple Smoke', symptoms include wilting and discoloration of flowers, followed by the browning and dropping of leaves, significantly affecting the plant's overall health.
What Causes Flower withering Disease on Blue wild indigo 'Purple Smoke'?
Fungal infection
Certain fungi targeting weakened or stressed plants can cause flower withering.
Environmental stress
Factors like drought, excessive moisture, or poor soil conditions can precipitate the disease.
How to Treat Flower withering Disease on Blue wild indigo 'Purple Smoke'?
Non pesticide
Proper watering: Maintaining a consistent watering schedule to avoid stress from drought or waterlogging.
Soil management: Ensuring well-drained and nutrient-rich soil to support plant health.
Pesticide
Fungicidal sprays: Applying approved fungicides at the first sign of infection to prevent spread.
Continue reading in our app - it's better
A database of 400000+ plants
unlimited guides at your fingertips...
unlimited guides at your fingertips...
Nutrient deficiencies
A lack of nutrients will cause a widespread yellowing of the leaves. The yellowing may begin at the base or top of the plant.
Overview
Nutrient deficiencies can be seen in many different ways on plants. Basically, the lack of nutrients will inhibit plant growth, produce weak stems and leaves, and leave plants open to infection from pests and diseases. Plants use the nutrients from the soil to help them with photosynthesis. This, in turn, produces healthy plant growth. Plants that lack adequate amounts of nutrients will look lackluster and unhealthy. Eventually, if this is not addressed, it will cause the plants to die. The most important nutrients that plants need are nitrogen, phosphorus, potassium, calcium, magnesium, and sulfur. Additionally, plants require small amounts of micronutrients such as iron, boron, manganese, zinc, copper, and molybdenum.
Symptom Analysis
A common sign that plants are experiencing nutrient deficiencies is the yellowing of leaves. This may be an overall yellowing or leaves that are yellow but still have green veins. These leaves will eventually brown off and die.
Another sign is the loss of plant vigor. The plants may not be growing as well as they should or their growth may be stunted.
Below are some common symptoms that appear when plants are lacking in nutrients.
Nitrogen (N): Inner, older leaves yellow first. If the deficiency is severe, yellowing progresses outward to newer growth.
Potassium (K): Leaf edges may turn brown and crinkly, with a yellowing layer forming just inside of the edge. Older leaves tend to be impacted first.
Phosphorus (P): Lack of vigorous growth. Plants will appear stunted.
Zinc (Zn): Yellowing tends to occur first at the base of the leaf.
Copper (Cu): Newer leaves begin to yellow first, with older leaves yellowing only if the deficiency becomes severe.
Boron (B): Newer leaves are impacted first. Foliage may also become particularly brittle in cases of boron deficiency.
Disease Cause
There are several factors that can lead to nutrient deficiencies, a situation where plants are not receiving the nutrients that they need. This could be because they are planted in nutrient-deficient soils, or that the soil's pH is too high or low. Incorrect soil pH can lock up certain nutrients, thus making them unavailable to plants. Lack of soil moisture can also be a problem, because plants need water to be able to absorb the nutrients from the soil.
Solutions
There are several easy ways to remedy the nutrient deficiencies in soils.
- Use a water-soluble fertilizer. Fertilizers will include most or all of the macro and micro-nutrients the plants need to thrive. Adding some fertilizer to the soil will make those nutrients available and can combat deficiencies.
- Regularly apply organic fertilizer pellets. Organic fertilizers such as animal manures and bonemeal can supply plants with all the nutrients that they need to grow strong and healthy.
- Apply compost. Though not as finely tuned as artificial fertilizer, compost can nevertheless be rich in important nutrients and should be applied to the soil regularly.
- Apply nutrients via foliar application. In addition to supplementing the soil with nutrients, foliar fertilizer can be applied directly to the plant's leaves. Nutrients offered via foliar application are often taken up even quicker than those put in the soil, so the foliar application can be great for swiftly addressing specific deficiencies.
Prevention
There are several easy ways to prevent nutrient deficiencies in plants.
- Regular fertilizing. Regular addition of fertilizer to the soil is one of the simplest and most effective ways to prevent deficiencies.
- Proper watering. Both over and under watering can adversely impact a plant's roots, which in turn makes it harder for them to properly take up nutrients.
- Testing the soil's pH. A soil's acidity or alkalinity will impact the degree to which certain nutrients are available to be taken up by plants. Knowing the soil's pH means it can be amended to suit the needs of the individual plants.
Continue reading in our app - it's better
A database of 400000+ plants
unlimited guides at your fingertips...
unlimited guides at your fingertips...
Root rot
Soft root rot can be caused by over-watering or pathogenic infection.
Overview
Root rot is a common and devastating problem that can infect trees, shrubs and other plants, often with fatal results. It is caused by excessive moisture in the soil, which activates a fungus that can lie dormant in soil and only emerge when conditions are ideal (soggy and wet). Because primary symptoms are hidden beneath the soil, the gardener may not become aware of the problem until upper sections of the plant start to show signs of distress.
Symptom Analysis
Early symptoms may occur below ground and not be obvious until they advance into more visible plant material. Above ground the gardener may be alerted by:
- Wilting and yellowing of the leaves.
- Softening and discoloration of the stems.
At this stage it is worth making a closer examination of what is going on below the soil.
- Soil will feel noticeably damp and boggy.
- There will often be a swampy smell emanating from the soil.
- Examination of the roots will reveal black or dark brown mushy material.
Disease Cause
Root rot is caused by plant pathogens in the soil which are activated by overly-wet conditions. They invade the root material, which begins to die and rot. With roots no longer functioning effectively, there is a shortage of oxygen and nutrients being carried to the upper sections of the plant. These will show the signs of distress that may be what first alerts the gardener to this issue.
Solutions
These are the solutions for root rot:
- Stop applying water and allow the plant to dry out.
- In the case of potted plants, the gardener can remove plant from its container and lay it on a sheet of paper in a shady spot to speed the drying process.
- Cut away black mushy root material until healthy white material is reached.
- Sprinkle root ball with anti-fungal powder.
- Repot using sterilized potting mixture but don't water for first couple of days. Ensure that the new pot offers adequate drainage. Terracotta pots can absorb moisture into their walls.
- Adopt an appropriate watering regime. For most potted plants, refrain from watering until the first inch or two of the soil is dry to the touch. Even plants that prefer to be kept "evenly moist" should never be allowed to sit in soggy soil. Outdoor plants should not be receiving so much water that it pools at the surface of the soil.
Prevention
With indoor plants these are the best preventative measures:
- Ensure that the container offers adequate drainage.
- Don't allow the plant to stand in a saucer filled with water.
- Adopt an appropriate watering regime which allows the plant to dry out between each watering, according to the preference of each species.
- Only use sterilized potting mixtures when planting up or re-potting.
With outdoor plants:
- Choose planting positions that offer effective drainage.
- Don't over-water.
- Rotate plants so that pathogens don't build up.
Continue reading in our app - it's better
A database of 400000+ plants
unlimited guides at your fingertips...
unlimited guides at your fingertips...
Black spot
Infection by the black spot pathogen causes black spots or patches to appear on leaves.
Overview
Black spot is a fungus that largely attacks leaves on a variety of ornamental plants, leaving them covered in dark spots ringed with yellow, and eventually killing them. The fungus is often simply unsightly, but if it infects the whole plant it can interfere with photosynthesis by killing too many leaves. Because of this, it is important to be aware of the best methods for preventing and treating this diseases should it occur in the garden.
Symptom Analysis
Here are a few of the most common symptoms of black spot:
- The plant has developed small black spots along the leaves.
- These spots be small, circular, and clustered together, or they may have a splotchy appearance and take up large portions of the leaves.
- The fungus may also affect plant canes, where lesions start purple and then turn black.
- The plant may suffer premature leaf drop.
Though most forms of black spot fungus pose little risk to a plant's overall health, many gardeners find them unsightly. Severe cases can also weaken a plant, so it becomes more susceptible to other pathogens and diseases.
Disease Cause
Black spot is spread by various types of fungi, which differ slightly depending on whether they are in their sexual or asexual stages.
The fungal spores linger over the winter in fallen leaves and lesions on canes. In the spring, the spores are splashed up onto the leaves, causing infection within seven hours of moisture and when temperatures range between 24 to 29 ℃ with a high relative humidity.
In just two weeks, thousands of additional spores are produced, making it easy for the disease to infect nearby healthy plants as well.
There are several factors that could make a plant more likely to suffer a black spot infection. Here are some of the most common:
- Exposure to infected plants or mulch (the fungus overwinters on dead leaves)
- Weakening from physical damage, pest infestation or other infections.
- Increased periods of wet, humid, warm weather – or exposure to overhead watering
- Plants growing too close together
Solutions
Some steps to take to address black spot include:
- Prune away any infected leaves, cleaning the pruners between plants with a 10% bleach solution so that the fungus does not spread to healthy leaves.
- Don't compost pruned plant parts as the spores can linger in the soil for a long period of time - instead, dispose of them in the trash.
- Use an approved fungicide such as Trifloxystrobin, Chlorothalonil, Maneb, or Myclobutanil.
- Use a spreader in the fungicide spray to ensure better coverage.
Prevention
Here are a few tips to prevent black spot outbreaks.
- Purchase resistant varieties: Invest in fungus-resistant plant varieties to reduce the chances for black spot diseases.
- Remove infected plant debris: Fungi can overwinter in contaminated plant debris, so remove all fallen leaves from infected plants as soon as possible.
- Rake and discard fallen leaves in the fall.
- Prune regularly.
- Water carefully: Fungal diseases spread when plants stay in moist conditions and when water droplets splash contaminated soil on plant leaves. Control these factors by only watering infected plants when the top few inches of soil are dry, and by watering at soil level to reduce splashback. Adding a layer of mulch to the soil will also reduce splashing.
- Grow plants in an open, sunny locations so the foliage dries quickly.
- Follow spacing guidelines when planting and avoid natural windbreaks for good air circulation.
- Use chemical control: Regular doses of a fungicide, especially in the spring, can stop an outbreak before it begins.
Continue reading in our app - it's better
A database of 400000+ plants
unlimited guides at your fingertips...
unlimited guides at your fingertips...
More Info on Blue Wild Indigo 'purple Smoke' Growth and Care
Common Pests & Diseases
Flower withering
Flower withering in Blue wild indigo 'Purple Smoke' primarily refers to the gradual decline and premature death of flowers and foliage, disrupting the aesthetic and vigor of the plant.
Leaf wilting
Leaf wilting in Blue wild indigo 'Purple Smoke' generally results from inadequate water supply, pest infestations, or diseases such as Fusarium spp. This condition drastically impedes the plant's ability to conduct photosynthesis, leading to stunted growth and premature leaf drop.
Leaf rot
Leaf rot is a fungal disease affecting Blue wild indigo 'Purple Smoke', characterized by decay and discoloration of leaves, leading potentially to plant death if untreated. Management includes proper sanitation and fungicide applications.
Flower wilting
Flower wilting in Blue wild indigo 'Purple Smoke' primarily results from fungal infections or environmental stress, leading to drooping and discoloration that can severely impact plant health and aesthetics.
Dark blotch
Dark blotch is a fungal disease impacting Blue wild indigo 'Purple Smoke' by causing unsightly lesions on leaves and stems, potentially resulting in premature leaf drop and reduced vigor of the plant.
Your Ultimate Guide to Plants
Identify grow and nurture the better way!
17,000 local species +400,000 global species studied
Nearly 5 years of research
80+ scholars in botany and gardening
Continue reading in our app - it's better
A database of 400000+ plants
unlimited guides at your fingertips...
unlimited guides at your fingertips...
