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Fragaria x ananassa White Cottony Spots
eco White Cottony Spots

Fragaria x ananassa – White Cottony Spots

Why does your Fragaria x ananassa have white cottony spots? Diagnose the cause and fix it with our step-by-step guide.

yard View full Fragaria x ananassa care guide
Jump to cause: Gray Mold (Botrytis cinerea) Powdery Mildew (Podosphaera aphanis) Mealybugs Cottony Scale

search Possible Causes

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Gray Mold (Botrytis cinerea)

This fungal pathogen thrives in high humidity and cool temperatures, causing fuzzy, grayish-white mold to appear on ripe strawberries or decaying leaves. It can quickly spread through the fruit cluster, leading to rapid rot.

Very Common
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How to confirm: Inspect if the white cottony texture is accompanied by a brownish, mushy decay on the fruit surface.
build How to fix it
shopping_cart Recommended Products
1 Immediately remove and discard all infected fruit and decaying leaves to prevent the fungal spores from spreading to healthy parts of the plant.
2 Apply an organic fungicide to protect remaining healthy fruit and foliage from further infection.
Bonide Captain Jack's Copper Fungicide 32 oz
Bonide Captain Jack's Copper Fungicide 32 oz
0.9 L • 1 pcs • Organic
$12
In Stock
3 Improve air circulation around the strawberry plants and reduce humidity by avoiding overhead watering, which keeps the foliage dry.
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Powdery Mildew (Podosphaera aphanis)

This disease manifests as white, flour-like patches on the surface of leaves and even stems. It creates a distinct powdery coating that can inhibit photosynthesis and cause leaf curling in strawberry plants.

Very Common
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How to confirm: Check if the white spots appear more like a fine dust that can be rubbed off with your finger.
build How to fix it
shopping_cart Recommended Products
1 Apply an organic fungicide to eliminate the existing powdery coating and prevent the spread of the fungus to healthy leaves.
Bonide Captain Jack's Copper Fungicide 32 oz
Bonide Captain Jack's Copper Fungicide 32 oz
0.9 L • 1 pcs • Organic
$12
In Stock
2 Prune and remove all heavily infected leaves and stems to reduce the fungal spore load in your garden.
3 Improve air circulation around the strawberry plants by spacing them properly and ensuring they are not in overly crowded or stagnant environments.
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Mealybugs

These small, soft-bodied insects secrete a white, waxy, cottony substance to protect themselves. They congregate in the crevices of the plant, particularly near the crown and leaf bases, sucking sap from the strawberry plant.

Common
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How to confirm: Look for tiny, slow-moving insects hiding under the leaves or at the base of the fruit stems.
build How to fix it
shopping_cart Recommended Products
1 Treat the strawberry plant with an organic insecticide to eliminate the mealybug population and remove the white waxy coating.
Bonide Captain Jack's Neem Oil 32 oz
Bonide Captain Jack's Neem Oil 32 oz
0.9 L • 1 pcs • Organic
$10
In Stock
2 Inspect the plant's crevices and leaf bases, manually removing visible insects with a cotton swab dipped in isopropyl alcohol.
3 Monitor the soil moisture levels to ensure the plant is not overly damp, as high humidity can encourage pest resurgence.
GROWIT Soil Moisture Meter - Blue
GROWIT Soil Moisture Meter - Blue
Water Meters
$12
In Stock
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Cottony Scale

Certain scale species produce a white, felt-like secretion that resembles cotton. While less common than Botrytis, these pests can cause significant stress to the strawberry foliage and fruit development.

Common
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How to confirm: Examine the stems for small, immobile bumps underneath the white waxy coating.
build How to fix it
shopping_cart Recommended Products
1 Apply an organic insecticide spray to the foliage and fruit to eliminate the scale insects and their white secretions.
Bonide Captain Jack's Neem Oil 32 oz
Bonide Captain Jack's Neem Oil 32 oz
0.9 L • 1 pcs • Organic
$10
In Stock
2 Prune and dispose of heavily infested strawberry leaves to prevent the spread of the scale to healthy parts of the plant.
3 Monitor the plant regularly using a magnifying glass to check for new white spots or emerging pests.

Other Fragaria x ananassa problems

Your plant might also be experiencing one of these issues:

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eco Sudden Leaf Drop chevron_right
eco Fine Webbing chevron_right
eco White Powder chevron_right
local_hospital All symptoms eco All plants with white cottony spots
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