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Lemon thyme 'Doone Valley'
Thymus citriodorus 'Doone Valley'
Lemon thyme 'Doone Valley' is a lemon thyme cultivar with tiny dark green leaves that contain unique and random splashes of yellow. Not all varieties of lemon thyme have yellow in their leaves, but when they do the yellow is usually more ordered and less random. The foliage is more fragrant than the parent plant and other varieties and has an intense lemon aroma. This cultivar is named after Doone Valley in the United Kingdom, though it is unclear why.
Hardiness Zones
5 to 9
Care Guide for Lemon thyme 'Doone Valley'
Feedback
Watering Care
Average water needs, watering when the top 3 cm of soil has dried out.
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Lemon thyme 'Doone Valley'
Water
Every week
Hardiness Zones
5 to 9
Planting Time
Spring, Early summer, Early fall, Mid fall
Key Facts About Lemon thyme 'Doone Valley'
Feedback
Attributes of Lemon thyme 'Doone Valley'
Lifespan
Perennial
Plant Type
Herb, Shrub
Planting Time
Spring, Early summer, Early fall, Mid fall
Bloom Time
Summer
Plant Height
5 cm to 10 cm
Spread
30 cm to 60 cm
Leaf Color
Green
Blue
Yellow
Variegated
Flower Color
Pink
Stem Color
Green
Yellow
Leaf type
Evergreen
Ideal Temperature
5 - 35 ℃
Scientific Classification of Lemon thyme 'Doone Valley'
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Common Pests & Diseases About Lemon thyme 'Doone Valley'
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Common issues for Lemon thyme 'Doone Valley' based on 10 million real cases
Treat and prevent plant diseases.
AI-powered plant doctor helps you diagnose plant problems in seconds.
White blotch
White blotch is a fungal disease affecting Lemon thyme 'Doone Valley', leading to white, blotchy patterns on leaves, reduced vigor, and potential die-off in severe cases. Effective management is crucial for plant health.
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.
Thrips
Thrips are 1 to 2 mm bugs with slender black or translucent-yellow bodies. They move quickly and feed on the plant's sap.
Solutions: Thrips can be controlled in several ways. Spray plants with Pyrethrin, which is an organic pesticide derived from marigolds (follow label instructions) or Permethrin, the synthetic version of Pyrethrin. Introduce beneficial insects to the garden that eat thrips, such as minute pirate bugs and green lacewings. Remove heavily infested plants from the area and discard. Address viral diseases that may have been transmitted by the pests. For less serious cases -use a hose to spray the thrips off of the plants.
Sap-sucking insects
Sap-sucking insects can create dense clusters of small yellow or white spots on the leaves.
Solutions: Sap-sucking insects can be hard to spot, as they are often small and attach to the undersides of plant leaves. If you see signs of an infestation, follow these steps to eradicate it. Hand-pick bugs and remove eggs: Inspect your plants for insects and drop any you find in a container of soapy water. Look carefully at the undersides of plant leaves and squish any egg clusters you find. Use Insecticide: Targeted spraying can take out sap-sucking insects. Small infestations can be controlled with insecticidal soap, though larger outbreaks might require a stronger spray. Introduce natural predators: Many insects, including ladybugs and praying mantises, love to feast on sap-suckers. You can purchase them at garden stores and release them near infected plants, or encourage wild ones by creating habitat space.
White blotch
Overview
Symptom
Causes
Treatment
Prevention
Active Period
What is White blotch Disease on Lemon thyme 'Doone Valley'?
White blotch is a fungal disease affecting Lemon thyme 'Doone Valley', leading to white, blotchy patterns on leaves, reduced vigor, and potential die-off in severe cases. Effective management is crucial for plant health.
Symptom Analysis
On Lemon thyme 'Doone Valley', white blotch manifests as irregular white patches on leaves, yellowing foliage, stunted growth, and in severe infections, leaf drop and plant decline.
What Causes White blotch Disease on Lemon thyme 'Doone Valley'?
Fungal Pathogen
White blotch is caused by fungal spores that infect the leaves, often thriving in humid conditions.
Environmental Conditions
High humidity and poor air circulation promote fungal growth and disease spread.
How to Treat White blotch Disease on Lemon thyme 'Doone Valley'?
Non pesticide
Pruning: Remove and destroy infected plant parts to reduce spore load.
Improved Airflow: Space plants appropriately and trim to promote better air circulation.
Pesticide
Fungicidal Spray: Apply fungicides with active ingredients like chlorothalonil or copper-based compounds to combat fungal growth.
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Brown spot
This infection can cause brown spots or patches to appear on the plant.
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
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
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.
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Thrips
Thrips are 1 to 2 mm bugs with slender black or translucent-yellow bodies. They move quickly and feed on the plant's sap.
Overview
Thrips are tiny, flying, sap-sucking insects that attack the tender parts of plants, causing scarring and weakening of the plant and sometimes, if the infestation is severe enough, plant death. They have undersized double wings with a fringe on them, resembling tiny, misshapen damselflies. Thrips have a taste for many houseplants and crops, making them a serious nuisance.
They appear in early spring after the last frost has occurred. If not controlled in early spring, they will persist for most of the season. They are often attracted to weakened plants, such as those struck by drought/underwatering or malnutrition. Excessive use of nitrogen fertilizer also seems to attract them to a plant. Thrips can spread various viruses between plants, leading to more serious damage.
Symptom Analysis
Thrips are so small that they may not be noticed (1 to 2 mm long), but infested plants present several key signs. Tiny pale spots appear on leaves, which may start to deform, show white or silver discoloration, or become papery in texture.
Flower petals may be damaged as well, and might display color break, which is dark or pale discoloring of petal tissue damaged before the buds had a chance to open. Fruits may show scabby or silvery scarring. Tiny black spots of the insects' excrement may be visible.
As the infestation progresses, infested terminals roll and become discolored, and leaves may drop prematurely. The plant's growth may be stunted. Secondary viral and bacterial infections, which thrips can transmit, may become evident.
The good news? Thrips rarely kill or seriously weaken shrubs and trees. Smaller plants, such as vegetable crops and herbaceous ornamentals, tend to be more severely affected.
Solutions
Thrips can be controlled in several ways.
- Spray plants with Pyrethrin, which is an organic pesticide derived from marigolds (follow label instructions) or Permethrin, the synthetic version of Pyrethrin.
- Introduce beneficial insects to the garden that eat thrips, such as minute pirate bugs and green lacewings.
- Remove heavily infested plants from the area and discard.
- Address viral diseases that may have been transmitted by the pests.
- For less serious cases -use a hose to spray the thrips off of the plants.
Continue reading in our app - it's better
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Scan the QR code with your phone camera to download the app
Sap-sucking insects
Sap-sucking insects can create dense clusters of small yellow or white spots on the leaves.
Symptom Analysis
Your plant has developed tiny yellowish spots scattered across the leaves that look like mold or mildew. If these marks won't wipe off, they are likely caused by sap-sucking insects like aphids, squash bugs, scale bugs, leafhoppers, whiteflies, mites, mealybugs, and more.
Each of these pests uses mouthparts to pierce leaf tissues and suck the sap. uses mouthparts to pierce leaf tissues and suck the sap. Signs of damage are difficult to spot at first, but a large infestation can quickly compromise the whole plant. You're most likely to see sap-sucking insects during the hottest months because plants make easier targets when already weakened from heat or drought.
Though sap-sucking insects are unlikely to kill your plant on their own, they can severely weaken it and make it more susceptible to disease. They may also spread viruses from one plant to another as they feed.
Solutions
Sap-sucking insects can be hard to spot, as they are often small and attach to the undersides of plant leaves. If you see signs of an infestation, follow these steps to eradicate it.
- Hand-pick bugs and remove eggs: Inspect your plants for insects and drop any you find in a container of soapy water. Look carefully at the undersides of plant leaves and squish any egg clusters you find.
- Use Insecticide: Targeted spraying can take out sap-sucking insects. Small infestations can be controlled with insecticidal soap, though larger outbreaks might require a stronger spray.
- Introduce natural predators: Many insects, including ladybugs and praying mantises, love to feast on sap-suckers. You can purchase them at garden stores and release them near infected plants, or encourage wild ones by creating habitat space.
Prevention
Healthy plants are less likely to suffer from sap-sucker attacks. Keep them fortified with fertilizer and the right amounts of water and sunlight. Plants that receive excess nitrogen are also more susceptible to attack, so don’t overfertilize. You should also remove weeds and tall grasses surrounding your outdoor plants so as not to create habitat space for the pests.
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More Info on Lemon Thyme 'doone Valley' Growth and Care
Feedback
Basic Care Guide
Common Pests & Diseases
Transplant
18-24 inches
For lemon thyme 'Doone Valley', the window from the thaw of early spring through the vitality of late spring is prime transplant time. Choose a sunny spot with well-drained soil. If splitting, ensure each section has roots attached.
Transplant Techniques White blotch
White blotch is a fungal disease affecting Lemon thyme 'Doone Valley', leading to white, blotchy patterns on leaves, reduced vigor, and potential die-off in severe cases. Effective management is crucial for plant health.
Read More
Stem rot
Stem rot is a fungal disease that primarily affects the stems of Lemon thyme 'Doone Valley', leading to deterioration and potential plant death. It often arises in overly moist conditions and can spread to other plants if not managed properly.
Read More
Soil fungus
Soil fungus disease in Lemon thyme 'Doone Valley' leads to root and foliage damage that can reduce growth or cause plant death. This disease can disrupt the garden aesthetics and plant health.
Read More
Branch withering
Branch withering is a disease that affects 'Lemon thyme 'Doone Valley'' by causing the dieback of branches, reducing the plant's vigor and potentially leading to its death. Proper management is crucial for the health of this herb.
Read More
Leaf blotch
Leaf blotch is a fungal disease affecting 'Lemon thyme 'Doone Valley'', causing discolored spots on leaves and potentially leading to reduced vigor and growth of the plant. Management includes cultural practices and fungicide applications.
Read More
Leaf yellowing
Leaf yellowing in Lemon thyme 'Doone Valley' refers to the discoloration and potential subsequent loss of foliage which can significantly affect plant health and aesthetic value.
Read More
Scars
Scars in Lemon thyme 'Doone Valley' manifest as physical blemishes that compromise the aesthetic and possibly the health of plants. While not a disease, they indicate possible past disease or mechanical damage.
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Notch
Notch is a plant disease significantly affecting Lemon thyme 'Doone Valley', characterized by distinctive tissue damage and growth irregularities. Known for impacting plant aesthetics and vigor, this disease may lead to poor herb quality.
Read More
Leaf rot
Leaf rot, primarily caused by fungal pathogens, significantly affects the overall health of Lemon thyme 'Doone Valley'. It manifests as brownish-black, water-soaked spots on leaves and stems, gradually advancing, often causing foliage to rot and plants to wilt.
Read More
Whole leaf withering
Whole leaf withering is a disease that causes widespread leaf desiccation and plant decline in Lemon thyme 'Doone Valley'. The disease results in stunted growth and can lead to plant death if not managed effectively.
Read More
Non-base branch withering
Non-base branch withering is a condition that affects Lemon thyme 'Doone Valley', leading to branch dieback, poor growth, and potential plant death. The disease impairs the plant's ornamental value and health.
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Spots
Spots on Lemon thyme 'Doone Valley' are superficial blemishes affecting leaves and stems, leading to discoloration and potential defoliation, possibly hindering photosynthesis and growth.
Read More
Dark spots
Dark spots on Lemon thyme 'Doone Valley' is a condition where the foliage develops unsightly discolored patches. This disease impedes photosynthetic efficiency and may compromise the plant's vigor and aesthetic value.
Read More
Leaf tip withering
Leaf tip withering is a plant disease affecting Lemon thyme 'Doone Valley''s growth and health, often resulting from factors like overwatering, external damage, or nutrient deficiencies. It can lead to yellowing leaves, stunted growth, and eventually, plant death if not timely addressed.
Read More
Black mold
Black mold is a fungal disease affecting Lemon thyme 'Doone Valley', characterized by sooty, dark fungal growth on leaves, which can impede photosynthesis and weaken the plant. Its spread can be rapid under favorable conditions, making it critical to address swiftly.
Read More
Leaf wilting
Leaf wilting is a perplexing condition that severely affects the health of Lemon thyme 'Doone Valley'. It prompts leaves to lose turgidity, turn pale, and eventually die. This can significantly undermine the plant's overall health, revoking its lemony scent and flavor.
Read More
Mushrooms
Mushrooms disease in Lemon thyme 'Doone Valley' leads to fungal growth, affecting plant vitality and aesthetic value. It is detrimental to the plant's health and can potentially lead to plant death if unmanaged.
Read More
Dark blotch
Dark blotch is a fungal disease that affects Lemon thyme 'Doone Valley', progressively discoloring leaves and impairing growth. The disease can cause significant damage if not managed correctly and may notably decrease the plant's aesthetic and medicinal qualities.
Read More
Yellow edges
Yellow edges is a physiological disorder suffered by Lemon thyme 'Doone Valley' that induces the leaves' edges to yellow, hampering the plant's aesthetic appeal and growth. It is caused by a combination of nutritional deficiencies, unsuitable environment, and pest-damage, leading to diminished plant health and vitality.
Read More
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About
Care Guide
More Info
Pests & Diseases
More About How-Tos
Lemon thyme 'Doone Valley'
Thymus citriodorus 'Doone Valley'
Lemon thyme 'Doone Valley' is a lemon thyme cultivar with tiny dark green leaves that contain unique and random splashes of yellow. Not all varieties of lemon thyme have yellow in their leaves, but when they do the yellow is usually more ordered and less random. The foliage is more fragrant than the parent plant and other varieties and has an intense lemon aroma. This cultivar is named after Doone Valley in the United Kingdom, though it is unclear why.
Hardiness Zones
5 to 9
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Care Guide for Lemon thyme 'Doone Valley'
Feedback
Watering Care
Average water needs, watering when the top 3 cm of soil has dried out.
Soil Care
Chalky, Neutral, Alkaline
Ideal Lighting
Full sun, Partial sun
Ideal Temperature
5 to 9
Planting Time
Spring, Early summer, Early fall, Mid fall
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Key Facts About Lemon thyme 'Doone Valley'
Feedback
Attributes of Lemon thyme 'Doone Valley'
Lifespan
Perennial
Plant Type
Herb, Shrub
Planting Time
Spring, Early summer, Early fall, Mid fall
Bloom Time
Summer
Plant Height
5 cm to 10 cm
Spread
30 cm to 60 cm
Leaf Color
Green
Blue
Yellow
Variegated
Flower Color
Pink
Stem Color
Green
Yellow
Leaf type
Evergreen
Ideal Temperature
5 - 35 ℃
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Scientific Classification of Lemon thyme 'Doone Valley'
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Common Pests & Diseases About Lemon thyme 'Doone Valley'
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Common issues for Lemon thyme 'Doone Valley' 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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White blotch
White blotch is a fungal disease affecting Lemon thyme 'Doone Valley', leading to white, blotchy patterns on leaves, reduced vigor, and potential die-off in severe cases. Effective management is crucial for plant health.
Learn More About the White blotch ![more]()
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 About the Brown spot ![more]()
Thrips
Thrips are 1 to 2 mm bugs with slender black or translucent-yellow bodies. They move quickly and feed on the plant's sap.
Solutions: Thrips can be controlled in several ways. Spray plants with Pyrethrin, which is an organic pesticide derived from marigolds (follow label instructions) or Permethrin, the synthetic version of Pyrethrin. Introduce beneficial insects to the garden that eat thrips, such as minute pirate bugs and green lacewings. Remove heavily infested plants from the area and discard. Address viral diseases that may have been transmitted by the pests. For less serious cases -use a hose to spray the thrips off of the plants.
Learn More About the Thrips ![more]()
Sap-sucking insects
Sap-sucking insects can create dense clusters of small yellow or white spots on the leaves.
Solutions: Sap-sucking insects can be hard to spot, as they are often small and attach to the undersides of plant leaves. If you see signs of an infestation, follow these steps to eradicate it. Hand-pick bugs and remove eggs: Inspect your plants for insects and drop any you find in a container of soapy water. Look carefully at the undersides of plant leaves and squish any egg clusters you find. Use Insecticide: Targeted spraying can take out sap-sucking insects. Small infestations can be controlled with insecticidal soap, though larger outbreaks might require a stronger spray. Introduce natural predators: Many insects, including ladybugs and praying mantises, love to feast on sap-suckers. You can purchase them at garden stores and release them near infected plants, or encourage wild ones by creating habitat space.
Learn More About the Sap-sucking insects ![more]()
White blotch
Overview
Symptom
Causes
Treatment
Prevention
Active Period
What is White blotch Disease on Lemon thyme 'Doone Valley'?
White blotch is a fungal disease affecting Lemon thyme 'Doone Valley', leading to white, blotchy patterns on leaves, reduced vigor, and potential die-off in severe cases. Effective management is crucial for plant health.
Symptom Analysis
On Lemon thyme 'Doone Valley', white blotch manifests as irregular white patches on leaves, yellowing foliage, stunted growth, and in severe infections, leaf drop and plant decline.
What Causes White blotch Disease on Lemon thyme 'Doone Valley'?
Fungal Pathogen
White blotch is caused by fungal spores that infect the leaves, often thriving in humid conditions.
Environmental Conditions
High humidity and poor air circulation promote fungal growth and disease spread.
How to Treat White blotch Disease on Lemon thyme 'Doone Valley'?
Non pesticide
Pruning: Remove and destroy infected plant parts to reduce spore load.
Improved Airflow: Space plants appropriately and trim to promote better air circulation.
Pesticide
Fungicidal Spray: Apply fungicides with active ingredients like chlorothalonil or copper-based compounds to combat fungal growth.
Continue reading in our app - it's better
A database of 400000+ plants
unlimited guides at your fingertips...
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Brown spot
This infection can cause brown spots or patches to appear on the plant.
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
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
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
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.
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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Thrips
Thrips are 1 to 2 mm bugs with slender black or translucent-yellow bodies. They move quickly and feed on the plant's sap.
Overview
Thrips are tiny, flying, sap-sucking insects that attack the tender parts of plants, causing scarring and weakening of the plant and sometimes, if the infestation is severe enough, plant death. They have undersized double wings with a fringe on them, resembling tiny, misshapen damselflies. Thrips have a taste for many houseplants and crops, making them a serious nuisance.
They appear in early spring after the last frost has occurred. If not controlled in early spring, they will persist for most of the season. They are often attracted to weakened plants, such as those struck by drought/underwatering or malnutrition. Excessive use of nitrogen fertilizer also seems to attract them to a plant. Thrips can spread various viruses between plants, leading to more serious damage.
Symptom Analysis
Thrips are so small that they may not be noticed (1 to 2 mm long), but infested plants present several key signs. Tiny pale spots appear on leaves, which may start to deform, show white or silver discoloration, or become papery in texture.
Flower petals may be damaged as well, and might display color break, which is dark or pale discoloring of petal tissue damaged before the buds had a chance to open. Fruits may show scabby or silvery scarring. Tiny black spots of the insects' excrement may be visible.
As the infestation progresses, infested terminals roll and become discolored, and leaves may drop prematurely. The plant's growth may be stunted. Secondary viral and bacterial infections, which thrips can transmit, may become evident.
The good news? Thrips rarely kill or seriously weaken shrubs and trees. Smaller plants, such as vegetable crops and herbaceous ornamentals, tend to be more severely affected.
Solutions
Thrips can be controlled in several ways.
- Spray plants with Pyrethrin, which is an organic pesticide derived from marigolds (follow label instructions) or Permethrin, the synthetic version of Pyrethrin.
- Introduce beneficial insects to the garden that eat thrips, such as minute pirate bugs and green lacewings.
- Remove heavily infested plants from the area and discard.
- Address viral diseases that may have been transmitted by the pests.
- For less serious cases -use a hose to spray the thrips off of the plants.
Prevention
The best way to protect plants from thrips is to take preventative measures.
- Avoid buying and transplanting infected plants. Check for signs of thrip damage before buying.
- Regularly prune off dead branches and leaves.
- Keep the garden weeded and remove debris such as dead branches and leaves.
- Avoid unnecessary use of insecticides as they can kill predatory insects that keep thrips in check.
- Plant a diverse variety of plants in the garden to provide habitat for predatory insects.
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A database of 400000+ plants
unlimited guides at your fingertips...
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Sap-sucking insects
Sap-sucking insects can create dense clusters of small yellow or white spots on the leaves.
Symptom Analysis
Your plant has developed tiny yellowish spots scattered across the leaves that look like mold or mildew. If these marks won't wipe off, they are likely caused by sap-sucking insects like aphids, squash bugs, scale bugs, leafhoppers, whiteflies, mites, mealybugs, and more.
Each of these pests uses mouthparts to pierce leaf tissues and suck the sap. uses mouthparts to pierce leaf tissues and suck the sap. Signs of damage are difficult to spot at first, but a large infestation can quickly compromise the whole plant. You're most likely to see sap-sucking insects during the hottest months because plants make easier targets when already weakened from heat or drought.
Though sap-sucking insects are unlikely to kill your plant on their own, they can severely weaken it and make it more susceptible to disease. They may also spread viruses from one plant to another as they feed.
Solutions
Sap-sucking insects can be hard to spot, as they are often small and attach to the undersides of plant leaves. If you see signs of an infestation, follow these steps to eradicate it.
- Hand-pick bugs and remove eggs: Inspect your plants for insects and drop any you find in a container of soapy water. Look carefully at the undersides of plant leaves and squish any egg clusters you find.
- Use Insecticide: Targeted spraying can take out sap-sucking insects. Small infestations can be controlled with insecticidal soap, though larger outbreaks might require a stronger spray.
- Introduce natural predators: Many insects, including ladybugs and praying mantises, love to feast on sap-suckers. You can purchase them at garden stores and release them near infected plants, or encourage wild ones by creating habitat space.
Prevention
Healthy plants are less likely to suffer from sap-sucker attacks. Keep them fortified with fertilizer and the right amounts of water and sunlight. Plants that receive excess nitrogen are also more susceptible to attack, so don’t overfertilize. You should also remove weeds and tall grasses surrounding your outdoor plants so as not to create habitat space for the pests.
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More Info on Lemon Thyme 'doone Valley' Growth and Care
Basic Care Guide
Common Pests & Diseases
White blotch
White blotch is a fungal disease affecting Lemon thyme 'Doone Valley', leading to white, blotchy patterns on leaves, reduced vigor, and potential die-off in severe cases. Effective management is crucial for plant health.
Stem rot
Stem rot is a fungal disease that primarily affects the stems of Lemon thyme 'Doone Valley', leading to deterioration and potential plant death. It often arises in overly moist conditions and can spread to other plants if not managed properly.
Soil fungus
Soil fungus disease in Lemon thyme 'Doone Valley' leads to root and foliage damage that can reduce growth or cause plant death. This disease can disrupt the garden aesthetics and plant health.
Branch withering
Branch withering is a disease that affects 'Lemon thyme 'Doone Valley'' by causing the dieback of branches, reducing the plant's vigor and potentially leading to its death. Proper management is crucial for the health of this herb.
Leaf blotch
Leaf blotch is a fungal disease affecting 'Lemon thyme 'Doone Valley'', causing discolored spots on leaves and potentially leading to reduced vigor and growth of the plant. Management includes cultural practices and fungicide applications.
Leaf yellowing
Leaf yellowing in Lemon thyme 'Doone Valley' refers to the discoloration and potential subsequent loss of foliage which can significantly affect plant health and aesthetic value.
Scars
Scars in Lemon thyme 'Doone Valley' manifest as physical blemishes that compromise the aesthetic and possibly the health of plants. While not a disease, they indicate possible past disease or mechanical damage.
Notch
Notch is a plant disease significantly affecting Lemon thyme 'Doone Valley', characterized by distinctive tissue damage and growth irregularities. Known for impacting plant aesthetics and vigor, this disease may lead to poor herb quality.
Leaf rot
Leaf rot, primarily caused by fungal pathogens, significantly affects the overall health of Lemon thyme 'Doone Valley'. It manifests as brownish-black, water-soaked spots on leaves and stems, gradually advancing, often causing foliage to rot and plants to wilt.
Whole leaf withering
Whole leaf withering is a disease that causes widespread leaf desiccation and plant decline in Lemon thyme 'Doone Valley'. The disease results in stunted growth and can lead to plant death if not managed effectively.
Non-base branch withering
Non-base branch withering is a condition that affects Lemon thyme 'Doone Valley', leading to branch dieback, poor growth, and potential plant death. The disease impairs the plant's ornamental value and health.
Spots
Spots on Lemon thyme 'Doone Valley' are superficial blemishes affecting leaves and stems, leading to discoloration and potential defoliation, possibly hindering photosynthesis and growth.
Dark spots
Dark spots on Lemon thyme 'Doone Valley' is a condition where the foliage develops unsightly discolored patches. This disease impedes photosynthetic efficiency and may compromise the plant's vigor and aesthetic value.
Leaf tip withering
Leaf tip withering is a plant disease affecting Lemon thyme 'Doone Valley''s growth and health, often resulting from factors like overwatering, external damage, or nutrient deficiencies. It can lead to yellowing leaves, stunted growth, and eventually, plant death if not timely addressed.
Black mold
Black mold is a fungal disease affecting Lemon thyme 'Doone Valley', characterized by sooty, dark fungal growth on leaves, which can impede photosynthesis and weaken the plant. Its spread can be rapid under favorable conditions, making it critical to address swiftly.
Leaf wilting
Leaf wilting is a perplexing condition that severely affects the health of Lemon thyme 'Doone Valley'. It prompts leaves to lose turgidity, turn pale, and eventually die. This can significantly undermine the plant's overall health, revoking its lemony scent and flavor.
Mushrooms
Mushrooms disease in Lemon thyme 'Doone Valley' leads to fungal growth, affecting plant vitality and aesthetic value. It is detrimental to the plant's health and can potentially lead to plant death if unmanaged.
Dark blotch
Dark blotch is a fungal disease that affects Lemon thyme 'Doone Valley', progressively discoloring leaves and impairing growth. The disease can cause significant damage if not managed correctly and may notably decrease the plant's aesthetic and medicinal qualities.
Yellow edges
Yellow edges is a physiological disorder suffered by Lemon thyme 'Doone Valley' that induces the leaves' edges to yellow, hampering the plant's aesthetic appeal and growth. It is caused by a combination of nutritional deficiencies, unsuitable environment, and pest-damage, leading to diminished plant health and vitality.
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