White Cabbage O S Cross F1 Fine Webbing - Causes & Fixes

Jump to cause: Two-Spotted Spider Mites (Tetranychus urticae) Western Flower Thrips (Frankliniella occidentalis) Diamondback Moth Larvae (Plutella xylostella) Silk

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Two-Spotted Spider Mites (Tetranychus urticae)

These mites thrive in hot, dry conditions and feed on the underside of cabbage leaves, injecting toxins that cause stippling and the production of characteristic fine silk webbing. In brassicas like OS Cross F1, heavy infestations can lead to leaf chlorosis and premature senescence.

Very Common

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How to confirm: Hold a white piece of paper underneath a leaf and tap it sharply to see if tiny crawling specks fall off.

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shopping_cart Recommended Products

1 Apply an organic miticide/insecticide spray to the undersides of the leaves to eliminate the spider mite population and destroy eggs.

Bonide Captain Jack's Neem Oil 32 oz

0.9 L • 1 pcs • Organic

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2 Increase humidity around the plant and ensure the soil remains consistently moist, as spider mites thrive in hot, dry environments.

Flora Premium Plant Mister

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3 Prune and dispose of heavily infested or dead leaves to prevent the mites from spreading to healthy parts of the cabbage plant.

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Western Flower Thrips (Frankliniella occidentalis)

While more known for flowers, thrips can colonate cabbage heads and leaves, causing silvery scarring and sometimes inducing silk-like secretions or debris that mimics webbing. They cause much smaller, localized necrotic spots compared to mites.

Common

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How to confirm: Inspect the undersides of leaves for very small, slender, yellowish insects moving rapidly.

build How to fix it

shopping_cart Recommended Products

1 Apply an organic insecticide to eliminate the thrips larvae and adults, and to control any silk-like secretions.

Bonide Captain Jack's Neem Oil 32 oz

0.9 L • 1 pcs • Organic

$10

In Stock

2 Use yellow sticky traps to monitor and capture adult thrips as they move through the cabbage foliage.

Super Ninja Fungus Gnat Traps - 30 Pack

30 pcs

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3 Inspect the cabbage heads and leaves regularly, removing and destroying any heavily infested plant material to prevent spread.

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Diamondback Moth Larvae (Plutella xylostella) Silk

The larvae of this pest species often spin silk to create protective shelters or to pupate near the cabbage leaves. This webbing is usually accompanied by visible 'windowpane' feeding damage where the leaf tissue is eaten away.

Common

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How to confirm: Look for small, irregular holes in the leaf tissue and tiny green caterpillars hiding within the webbing.

build How to fix it

shopping_cart Recommended Products

1 Apply an organic insecticide to eliminate the larvae and destroy the silk webbing. Bonide Captain Jack's Neem Oil is an effective 3-in-1 solution for controlling insects and fungal issues.

Bonide Captain Jack's Neem Oil 32 oz

0.9 L • 1 pcs • Organic

$10

In Stock

2 Inspect the undersides of cabbage leaves for small, caterpillar-like larvae and manually remove them if found.

3 Monitor the plant's health using a moisture meter to ensure the plant remains hydrated, as stressed plants are more susceptible to pest infestations.