Viola cornuta Jolly Face STV080 Fine Webbing - Causes & Fixes

Jump to cause: Two-Spotted Spider Mites (Tetranychus urticae) Edema (Physiological Disorder) Cheesemite or Other Mite Species

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Two-Spotted Spider Mites (Tetranychus urticae)

This is the most common cause of fine webbing on violets, especially in warm, dry conditions. These microscopic arachnids pierce plant cells to feed, causing stippling and creating silk webs for protection and movement.

Very Common

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

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1 Immediately spray the plant with an organic miticide or insecticide to kill the spider mites and their eggs.

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 dry environments.

PlanKKers Iridescent Glass Globes Medium 2Pcs

Glass

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

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Edema (Physiological Disorder)

While not producing webs, irregular cell expansion can cause leaf bumps that look like textured webbing or crusting. This occurs in Viola cornuta when soil moisture levels fluctuate rapidly, causing cells to burst.

Common

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How to confirm: Inspect the leaves for small, blister-like bumps or corky patches rather than actual silk strands.

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1 Stabilize soil moisture levels by ensuring consistent watering, avoiding the rapid dry-to-wet cycles that cause cell bursting.

GROWIT Soil Moisture Meter SMM-V3

Water Meters

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2 Monitor the soil moisture depth regularly to prevent the physiological stress of edema.

GROWIT Analog Soil Moisture Meter

Water Meters

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3 Ensure the plant has adequate airflow and well-draining soil to help the plant manage water uptake more effectively.

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Cheesemite or Other Mite Species

Other less common mite species can inhabit Viola cornuta, producing much finer, almost invisible webbing. These pests thrive in the humid microclimates often found in dense pansy/viola foliage.

Common

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How to confirm: Use a 10x hand lens to inspect the underside of the leaves for tiny, stationary dark specks.

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shopping_cart Recommended Products

1 Isolate the plant immediately to prevent the mites from spreading to other greenery in your collection.

2 Apply an organic miticide/insecticide spray to the foliage, ensuring you coat the undersides of leaves where mites hide.

Bonide Captain Jack's Neem Oil 32 oz

0.9 L • 1 pcs • Organic

$10

In Stock

3 Use yellow sticky traps to capture adult mites and monitor the population levels.