Rhododendron molle Fine Webbing - Causes & Fixes

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Two-Spotted Spider Mite Infestation

These tiny arachnids thrive in warm, dry conditions and feed on the underside of Rhododendron leaves, leaving behind characteristic fine silken webs. Their feeding causes stippling (small white/yellow dots) on the foliage.

Very Common

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

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1 Apply an organic miticide to eliminate the spider mites and their eggs; a thorough spray of the leaf undersides is essential.

Bonide Captain Jack's Neem Oil 32 oz

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

PlanKKers Terracotta Watering Spikes (Set 6)

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3 Gently wipe or spray the foliage with water to physically dislodge existing webbing and mites from the leaves.

Flora Premium Plant Mister

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Cyclamen Mite Infestation

While less common than spider mites, these mites can cause webbing and distorted, puckered leaf growth in Rhododendron species. They primarily attack the tender new growth of the plant.

Common

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How to confirm: Examine the newest, most tender leaf buds for any signs of discoloration or abnormal swelling accompanied by webs.

build How to fix it

shopping_cart Recommended Products

1 Apply an organic miticide or insecticide spray to the plant, ensuring you coat the undersides of leaves and any visible webbing to eliminate the mites.

Bonide Captain Jack's Neem Oil 32 oz

0.9 L • 1 pcs • Organic

$10

In Stock

2 Prune and carefully dispose of any heavily distorted or puckered new growth to reduce the mite population and prevent further spread.

3 Increase humidity around the plant and monitor soil moisture, as mites often thrive in dry, stressed environments.

Flora Premium Plant Mister

Spray Bottles

$12

In Stock

warning

Tenuipalpus mites (False Spider Mites)

These mites produce fine webbing and cause leaves to turn bronze or purplish, which can be mistaken for environmental stress in soft-leaved Rhododendrons.

Common

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How to confirm: Look for a bronzing effect on the leaf surface specifically where the webbing is most dense.

build How to fix it

shopping_cart Recommended Products

1 Apply an organic miticide or insecticide spray to the plant to eliminate the mites and their eggs.

Bonide Captain Jack's Neem Oil 32 oz

0.9 L • 1 pcs • Organic

$10

In Stock

2 Thoroughly wipe the leaves with a damp cloth to physically remove the fine webbing and any remaining mites.

3 Monitor the plant's moisture levels to ensure the environment does not become too dry, which can encourage mite populations.