Sedum corynephyllum Fine Webbing
eco Fine Webbing

Sedum corynephyllum – Fine Webbing

Why does your Sedum corynephyllum have fine webbing? Diagnose the cause and fix it with our step-by-step guide.

search Possible Causes

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Two-Spotted Spider Mite (Tetranychus urticae)

This is the most common cause of fine webbing on succulents like Sedum. These microscopic pests thrive in hot, dry conditions and pierce the fleshy leaves to suck out cell contents, leaving behind silk webs and stippled white spots.

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 Isolate the plant immediately and spray the foliage thoroughly with an organic insecticide to kill existing mites and larvae.
2 Increase humidity and reduce heat around the plant, as spider mites thrive in hot, dry environments.
3 Use a moisture meter to ensure the soil is not excessively dry, which can trigger mite outbreaks.
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Edema (Physiological Disorder)

While not a direct cause of webbing, high humidity or irregular watering can cause cells to burst, creating micro-fissures in the leaf cuticle. This damage can sometimes trap dust and fine fungal hyphae that mimic a webbed appearance.

Common
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How to confirm: Check for small, corky, or raised bumps on the surface of the Coryneleaf Sedum leaves.
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1 Inspect the plant closely for tiny moving organisms to rule out spider mites, which are the primary cause of true fine webbing.
2 Regulate watering frequency to ensure the soil dries out between waterings, preventing the cell bursting caused by edema.
3 Improve air circulation around the plant to reduce the high humidity levels that contribute to physiological tissue damage.
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Chela/Thrips Infestation

While thrips primarily cause silvery scarring, a heavy infestation can lead to secondary fungal growth or silken debris from their movement through the plant's crevices.

Common
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How to confirm: Look for tiny, elongated black or brown insects moving rapidly along the leaf margins.
build How to fix it
shopping_cart Recommended Products
1 Isolate the plant immediately and spray the foliage thoroughly with an organic insecticide to eliminate active thrips and remove silken debris.
2 Inspect the crevices of the plant for any secondary fungal growth and treat with a fungicide if spotting is present.
3 Place yellow sticky traps near the plant to capture adult thrips and prevent further reproduction cycles.

Other Sedum corynephyllum problems

Your plant might also be experiencing one of these issues:

local_hospital All symptoms eco All plants with fine webbing
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