Acer capillipes Fine Webbing - Causes & Fixes

Jump to cause: Two-Spotted Spider Mite Infestation Tetranychus urticae (European Red Spider Mite) Fall Webworm Infestation

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Two-Spotted Spider Mite Infestation

These tiny arachnids thrive in warm, dry conditions common for Acer species. They pierce the leaf cells to feed on sap, leaving behind fine silk webbing and stippled white/yellow spots on the foliage.

Very Common

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

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shopping_cart Recommended Products

1 Apply an organic miticide to eliminate the spider mite population and destroy eggs, larvae, and adults.

Bonide Captain Jack's Neem Oil 32 oz

0.9 L • 1 pcs • Organic

$10

In Stock

2 Increase humidity around the foliage and ensure the plant is not in overly dry conditions to make the environment less hospitable for mites.

Flora Premium Plant Mister

Spray Bottles

$12

In Stock

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

Fiskars 5/8" Bypass Pruning Shears

Cutting Tools

$13

In Stock

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Tetranychus urticae (European Red Spider Mite)

A specific strain of spider mite that is highly prevalent in ornamental Acer cultivars. It causes rapid bronzing of the leaf tissue and dense webbing, especially during periods of heat stress.

Very Common

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How to confirm: Examine the undersides of the leaves for tiny red or orange moving dots.

build How to fix it

shopping_cart Recommended Products

1 Apply an organic miticide or insecticide to eliminate the spider mite population and destroy eggs/larvae.

Bonide Captain Jack's Neem Oil 32 oz

0.9 L • 1 pcs • Organic

$10

In Stock

2 Increase humidity around the foliage and rinse leaves with water to disrupt the mite's ability to thrive and create webbing.

Flora Premium Plant Mister

Spray Bottles

$12

In Stock

3 Monitor soil moisture levels to reduce heat stress, which can trigger mite outbreaks.

GROWIT Soil Moisture Meter SMM-V3

Water Meters

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Fall Webworm Infestation

While primarily known for larger, more dense silk structures, early-stage larval feeding can appear as fine, disorganized webbing across the outer canopy of the maple.

Common

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How to confirm: Look for large, caterpillar-like larvae crawling within the webbed sections of the branches.

build How to fix it

shopping_cart Recommended Products

1 Manually remove and destroy any visible webbing or larvae from the tree canopy to reduce the immediate population.

2 Apply an organic insecticide spray to the affected areas to target remaining larvae and prevent further feeding.

Bonide Captain Jack's Neem Oil 32 oz

0.9 L • 1 pcs • Organic

$10

In Stock

3 Monitor the tree closely for new silk structures and use a sticky trap near the base of the tree to catch migrating moths.