Lilium columbianum Fine Webbing - Causes & Fixes

Jump to cause: Two-Spotted Spider Mite Infestation European Red Mite (Acalinicide infestation) Fall Webworm (Late season)

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Two-Spotted Spider Mite Infestation

Spider mites are common pests for Lilium columbianum that thrive in warm, dry conditions. They pierce the lily's cell walls to feed on sap, leaving behind fine silk webbing as a protective habitat.

Very Common

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

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shopping_cart Recommended Products

1 Apply an organic insecticide to eliminate the spider mites and their eggs; a neem oil spray is highly effective for this purpose.

Bonide Captain Jack's Neem Oil 32 oz

0.9 L • 1 pcs • Organic

$10

In Stock

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

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3 Gently wipe the leaves with a damp cloth to physically remove the webbing and dislodge any remaining mites.

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European Red Mite (Acalinicide infestation)

While less common than the two-spotted variety, these mites create silk structures on lily foliage. They can cause stippling and fine webbing, particularly when humidity levels are low.

Common

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How to confirm: Inspect the undersides of the leaves for small reddish or orange-colored mites moving near the webbed areas.

build How to fix it

shopping_cart Recommended Products

1 Apply an organic miticide or insecticide spray to the foliage to eliminate the mites and their silk structures.

Bonide Captain Jack's Neem Oil 32 oz

0.9 L • 1 pcs • Organic

$10

In Stock

2 Increase local humidity around the lily to make the environment less hospitable for mite reproduction.

Flora Premium Plant Mister

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3 Carefully wipe the leaves with a damp cloth to physically remove webbing and any remaining mite populations.

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Fall Webworm (Late season)

In some regions, fall webworms can create larger, more dense silk nests on vegetation. While they typically target different host plants, extreme infestations in garden ecosystems can occasionally affect nearby lilies.

Common

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How to confirm: Check if the webbing is concentrated in large, dense clumps rather than a fine, leaf-wide mist of silk.

build How to fix it

shopping_cart Recommended Products

1 Manually remove any visible silk nests or webbing from the lily foliage to disrupt the larvae's habitat.

2 Apply an organic insecticide spray to eliminate any remaining caterpillars and larvae.

Bonide Captain Jack's Neem Oil 32 oz

0.9 L • 1 pcs • Organic

$10

In Stock

3 Monitor the plant closely for new webbing and use yellow sticky traps to catch any migrating adult moths.