Kalanchoe serrata Sticky Leaves - Causes & Fixes

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Aphid Infestation

Aphids are sap-sucking insects that inject toxic saliva into the Kalanchoe's succulent tissues, excreting a sugary substance called honeydew. This honeydew creates a visible sticky film on the leaf surfaces.

Very Common

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How to confirm: Inspect the undersides of leaves and new growth for tiny, pear-shaped green or black insects.

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1 Apply an organic insecticide to eliminate the aphid population and stop the production of honeydew.

Bonide Captain Jack's Neem Oil 32 oz

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2 Wipe the sticky residue off the leaves using a soft cloth and water to prevent fungal growth.

3 Inspect the undersides of leaves and new growth regularly to ensure no new pests have emerged.

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Scale Insects

Scale insects attach themselves to the stems and leaves of Kalanchoe serrata and secrete honeydew as they feed on plant fluids. Unlike aphids, these pests look like small, stationary bumps or scales.

Very Common

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How to confirm: Look for small, hard, brownish bumps on the stems that do not move when disturbed.

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1 Apply an organic insecticide spray to the plant to kill existing scale insects and their eggs.

Bonide Captain Jack's Neem Oil 32 oz

0.9 L • 1 pcs • Organic

$10

In Stock

2 Physically remove visible scale bumps from stems and leaves using a cotton swab dipped in rubbing alcohol.

3 Wipe the sticky honeydew residue off the leaves with a damp cloth to prevent fungal growth.

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Mealybug Infestation

Mealybugs are soft-bodied insects that produce honeydew and are often covered in a white, waxy substance. They tend to hide in the crevices of the serrated leaf margins.

Common

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How to confirm: Check the leaf axils and junctions for small, white, cotton-like clusters.

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1 Isolate the plant immediately to prevent the mealybugs from spreading to other houseplants.

2 Treat the infestation by spraying the plant with an organic insecticide to eliminate the white, waxy insects and their eggs.

Bonide Captain Jack's Neem Oil 32 oz

0.9 L • 1 pcs • Organic

$10

In Stock

3 Wipe the sticky residue and visible pests from the leaf crevices using a cotton swab dipped in isopropyl alcohol.

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Excessive Nectar/Nectary Secretion

In some environmental conditions, certain parts of the Kalanchoe plant may exude nectar through specialized glands. This is a physiological response rather than a pest issue, though it is much less common.

Rare

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How to confirm: Observe if the stickiness is localized strictly to specific floral nodes or leaf tips without visible insects.

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1 Gently wipe the leaves with a soft, damp cloth to remove the excess nectar and prevent secondary fungal growth or pest attraction.

2 Ensure the plant has adequate airflow and appropriate light levels to reduce environmental stress that may trigger nectar secretion.