Lavandula Fine Webbing - Causes & Fixes

Jump to cause: Two-Spotted Spider Mite Infestation Grape Hagworm or similar Leaf-Rolling Larvae Extreme Low Humidity / Desiccation

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Two-Spotted Spider Mite Infestation

Spider mites thrive in the warm, dry conditions often preferred by Lavender. They feed on the undersides of leaves, injecting saliva that causes stippling and creates fine silk webbing to protect their colonies.

Very Common

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How to confirm: Hold a white piece of paper under a lavender branch and tap the leaves to see if tiny crawling specks fall onto it.

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shopping_cart Recommended Products

1 Immediately treat the plant with an organic miticide to eliminate the spider mite population and destroy eggs.

Bonide Captain Jack's Neem Oil 32 oz

0.9 L • 1 pcs • Organic

$10

In Stock

2 Prune and dispose of heavily infested or dead foliage to reduce the mite population and prevent further spread.

3 Increase humidity and avoid dry, stagnant air by misting the plant, and use a moisture meter to ensure the soil remains appropriately hydrated.

GROWIT Soil Moisture Meter - Blue

Water Meters

$12

In Stock

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Grape Hagworm or similar Leaf-Rolling Larvae

Certain larvae create silken tunnels or webs to manipulate lavender foliage for protection while feeding. This results in visible webbing that often pulls leaves together into small, enclosed structures.

Common

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How to confirm: Gently pull apart the webbed clusters to check for small caterpillars or larvae inside the leaf folds.

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shopping_cart Recommended Products

1 Manually remove and destroy any visible silken webs or rolled leaves to disrupt the larvae's protection and feeding sites.

2 Apply an organic insecticide spray to eliminate remaining larvae and eggs; Bonide Captain Jack's Neem Oil is effective for controlling various pests and larvae.

Bonide Captain Jack's Neem Oil 32 oz

0.9 L • 1 pcs • Organic

$10

In Stock

3 Monitor the plant closely using a moisture meter to ensure the plant remains healthy and not overwatered, as excess moisture can sometimes encourage secondary fungal issues after pest damage.

GROWIT Soil Moisture Meter - Blue

Water Meters

$12

In Stock

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Extreme Low Humidity / Desiccation

While not a biological pest, extreme drought stress in lavender can cause leaves to become brittle and occasionally trap airborne dust or fine fungal hyphae that mimic a webbed appearance.

Common

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How to confirm: Check the soil moisture levels and observe if the plant's stems are becoming woody or shriveled.

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shopping_cart Recommended Products

1 Increase ambient humidity around the plant by using a pebble tray or a fine misting tool to prevent further leaf desiccation.