Dodonaea viscosa Sticky Leaves - Causes & Fixes

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Scale Insects

Scale insects attach to the undersides of Dodonaea leaves and suck sap, excreting a sugary substance known as honeydew that makes the foliage feel sticky.

Very Common

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How to confirm: Inspect the undersides of the leaves for small, stationary bumps or shell-like structures attached to the stems.

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

Bonide Captain Jack's Neem Oil 32 oz

0.9 L • 1 pcs • Organic

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2 Wipe the leaves with a damp cloth to remove the sticky honeydew residue and prevent the growth of sooty mold.

3 Inspect the undersides of leaves and stems regularly to catch new infestations early.

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Aphid Infestation

Aphids congregate on new growth and tender leaf tissue of the Hop bush, secreting large amounts of honeydew as they feed on plant phloem.

Very Common

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How to confirm: Look for tiny, soft-bodied insects (often green or black) clustered near the leaf buds or stem tips.

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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

0.9 L • 1 pcs • Organic

$10

In Stock

2 Use a strong stream of water to physically wash aphids and sticky residue off the leaves and stems.

3 Monitor the plant with yellow sticky traps to capture any remaining flying aphids or adults.

Super Ninja Fungus Gnat Traps - 30 Pack

30 pcs

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Mealybugs

Mealybugs are common pests on woody shrubs like Dodonaea and produce a sticky residue alongside white, cottony wax coverings.

Common

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How to confirm: Search for small, white, fuzzy masses in the leaf axils or where the leaf meets the stem.

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shopping_cart Recommended Products

1 Spray the plant thoroughly with an organic insecticide to eliminate existing mealybug colonies and kill larvae.

Bonide Captain Jack's Neem Oil 32 oz

0.9 L • 1 pcs • Organic

$10

In Stock

2 Wipe the sticky residue and visible white cottony masses off the leaves using a cotton swab dipped in isopropyl alcohol.

3 Monitor the plant for new infestations and use yellow sticky traps to capture any emerging flying adults.

Super Ninja Fungus Gnat Traps - 30 Pack

30 pcs

$7

In Stock

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Sooty Mold

While not a primary cause, sooty mold is a black fungus that grows directly on the sticky honeydew left behind by sap-sucking insects.

Common

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How to confirm: Check if there is a dark, powdery, or crusty black film covering the leaves that can be wiped away.

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shopping_cart Recommended Products

1 Identify and treat the underlying sap-sucking insects (such as aphids, scale, or whiteflies) that are producing the sticky honeydew using an organic insecticide.

Bonide Captain Jack's Neem Oil 32 oz

0.9 L • 1 pcs • Organic

$10

In Stock

2 Gently wipe the black sooty mold off the leaves with a soft cloth and water to restore the plant's ability to photosynthesize.

3 Monitor soil moisture levels to ensure the plant is not under environmental stress, which can make it more susceptible to pest infestations.