Lilium oriental Sandong Fine Webbing - Causes & Fixes

Jump to cause: Two-Spotted Spider Mite (Tetranychus urticae) Edema (Physiological Disorder) Fall Webworm (Macaria notata)

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Two-Spotted Spider Mite (Tetranychus urticae)

Spider mites thrive in the warm, dry conditions often experienced by Oriental Lilies, creating characteristic fine silk webbing to protect themselves and their eggs. They feed on the lily's leaf cells, causing stippling or yellowing.

Very Common

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How to confirm: Tap a leaf over a white piece of paper; if tiny moving dots appear, it is a mite infestation.

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shopping_cart Recommended Products

1 Apply an organic insecticide spray to eliminate existing mites, eggs, and larvae on the plant foliage.

Bonide Captain Jack's Neem Oil 32 oz

0.9 L • 1 pcs • Organic

$10

In Stock

2 Increase humidity around the lily by using a fine mist spray to create an environment less favorable to spider mite reproduction.

Flora Premium Plant Mister

Spray Bottles

$12

In Stock

3 Monitor soil moisture levels to ensure the plant is not suffering from drought stress, which can exacerbate mite infestations.

GROWIT Soil Moisture Meter - Blue

Water Meters

$12

In Stock

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Edema (Physiological Disorder)

While usually manifesting as blisters, extreme edema in lilies can cause cell rupture that may look like disorganized silk-like patterns or fine cracks on the leaf surface due to irregular water uptake.

Common

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How to confirm: Look for small, corky bumps or blisters on the underside of the leaves preceding any structural changes.

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shopping_cart Recommended Products

1 Monitor soil moisture levels closely using a moisture meter to ensure you are not overwatering, as consistent water uptake is key to preventing cell rupture.

GROWIT Soil Moisture Meter SMM-V3

Water Meters

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2 Improve air circulation around the lily foliage and ensure the pot has excellent drainage to prevent the waterlogged conditions that trigger edema.

Root & Vessel Majestic Low Profile Black 6.5"

6.5" • Plastic

$11

In Stock

3 If the plant shows signs of stress from irregular watering, apply a microbial-based liquid fertilizer to help strengthen the root zone and improve resilience.

FoxFarm Bush Doctor Boomerang Liquid Plant Fertilizer 1 Pint

0.5 L • 1 pcs

$20

In Stock

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Fall Webworm (Macaria notata)

Though more common on woody plants, certain lepidopteran larvae can occasionally target tender new growth on lilies, spinning fine webs to create protective silken tubes.

Rare

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How to confirm: Inspect the web for small green caterpillars or cocoons hidden within the silk structure.

build How to fix it

shopping_cart Recommended Products

1 Manually remove any visible webbing and larvae from the lily stems to prevent further feeding on tender new growth.

2 Apply an organic insecticide spray to the plant to eliminate any remaining larvae and protect against future infestations.

Bonide Captain Jack's Neem Oil 32 oz

0.9 L • 1 pcs • Organic

$10

In Stock

3 Monitor the plant closely for new silken tubes and use a fine mist to disrupt any developing webs.