Hosta kiyosumiensis Fine Webbing - Causes & Fixes

Jump to cause: Two-Spotted Spider Mites (Tetranychus urticae) Southern Yellow Stripe Mites Thrips Infestation

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Two-Spotted Spider Mites (Tetranychus urticae)

These microscopic arachnids thrive in the warm, dry conditions that 'Hosta kiyosumiensis' often experiences during summer. They pierce the leaf cells to suck out contents, leaving behind fine silken webbing and characteristic stippling.

Very Common

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How to confirm: Tap a lower leaf over a white piece of paper; if tiny crawling dots appear, you have mites.

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

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2 Increase humidity around the plant and avoid dry, hot conditions, as spider mites thrive in arid environments.

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3 Gently wipe the leaves with a damp cloth to physically remove webbing and any visible mites from the plant surface.

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Southern Yellow Stripe Mites

Common in shade-loving hostas, these mites create fine webbing specifically around the leaf margins and veins. They cause a distinct yellowing or chlorotic streaking pattern on the blue-green foliage of 'Kiyosumi' varieties.

Common

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How to confirm: Inspect the underside of the leaves for extremely fine, almost invisible webs near the leaf edges.

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shopping_cart Recommended Products

1 Apply an organic miticide or insecticide spray to the foliage 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 Prune and dispose of heavily infested or yellowed leaves to prevent the mites from spreading to healthy parts of the plant.

3 Increase humidity around the plant by misting the leaves, as mites thrive in dry conditions.

Flora Premium Plant Mister

Spray Bottles

$12

In Stock

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Thrips Infestation

While thrips are more known for scarring, heavy infestations can produce silk-like strands as they move through the foliage. This often results in silvery or necrotic streaks on the hosta leaves.

Common

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How to confirm: Look for tiny, slender black insects moving quickly across the leaf surface or within the webbing.

build How to fix it

shopping_cart Recommended Products

1 Apply an organic insecticide spray to the foliage to eliminate active thrips and larvae.

Bonide Captain Jack's Neem Oil 32 oz

0.9 L • 1 pcs • Organic

$10

In Stock

2 Use yellow sticky traps near the plant to capture adult thrips and monitor the population levels.