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Acer davidii Sticky Leaves
eco Sticky Leaves

Acer davidii – Sticky Leaves

Why does your Acer davidii have sticky leaves? Diagnose the cause and fix it with our step-by-step guide.

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Jump to cause: Aphid Infestation Scale Insects Sooty Mold Growth Scale/Coccid Infestation (Soft Scale)

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Aphid Infestation

Aphids are small, soft-bodied insects that pierce the tender new growth of Acer davidii to suck sap. As they feed, they excrete a sugary substance known as 'honeydew,' which creates the sticky residue on leaf surfaces.

Very Common
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How to confirm: Inspect the undersides of new leaves and stem nodes for tiny, pear-shaped green or black insects.
build How to fix it
shopping_cart Recommended Products
1 Apply an organic insecticide to eliminate the aphid population and stop the production of honeydew.
Bonide Captain Jack's Neem Oil 32 oz
Bonide Captain Jack's Neem Oil 32 oz
0.9 L • 1 pcs • Organic
$10
In Stock
2 Gently wash the sticky residue off the leaves using a soft cloth or a controlled stream of water to prevent fungal growth.
3 Inspect the undersides of new growth regularly and use yellow sticky traps to monitor for any returning pests.
Super Ninja Fungus Gnat Traps - 30 Pack
Super Ninja Fungus Gnat Traps - 30 Pack
30 pcs
$7
In Stock
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Scale Insects

Scale insects attach themselves to the stems and leaf petioles of David's Maple, extracting nutrients. Like aphids, they produce honeydew that coats the leaves in a sticky film.

Very Common
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How to confirm: Look for small, hard, bump-like structures firmly attached to the twigs or the underside of leaves.
build How to fix it
shopping_cart Recommended Products
1 Apply an organic insecticide spray to the leaves and stems to eliminate existing scale insects and their eggs.
Bonide Captain Jack's Neem Oil 32 oz
Bonide Captain Jack's Neem Oil 32 oz
0.9 L • 1 pcs • Organic
$10
In Stock
2 Physically remove visible scale insects from the stems and petioles using a soft cloth or cotton swab dipped in rubbing alcohol.
3 Wipe the sticky honeydew residue off the leaves with a damp cloth to prevent the growth of sooty mold.
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Sooty Mold Growth

While not a primary cause, sooty mold is a black fungus that grows on the sticky honeydew left by sap-sucking insects. It can coat the leaves of Acer davidii, making them appear dirty and reducing photosynthetic capacity.

Common
lightbulb
How to confirm: Check if the sticky residue is accompanied by a black, powdery coating that can be wiped off with a cloth.
build How to fix it
shopping_cart Recommended Products
1 Identify and treat the underlying insect pest (such as aphids or scale) using an organic insecticide to stop the production of honeydew.
Bonide Captain Jack's Neem Oil 32 oz
Bonide Captain Jack's Neem Oil 32 oz
0.9 L • 1 pcs • Organic
$10
In Stock
2 Gently wash the affected leaves with a soft cloth and water to remove the black sooty mold and 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.
GROWIT Soil Moisture Meter - Blue
GROWIT Soil Moisture Meter - Blue
Water Meters
$12
In Stock
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Scale/Coccid Infestation (Soft Scale)

Certain types of soft scale insects live within a waxy coating and are particularly common on deciduous maples, leaving behind significant amounts of sticky residue.

Common
lightbulb
How to confirm: Rub the sticky area with a cotton swab to see if any translucent or white waxy organisms emerge.
build How to fix it
shopping_cart Recommended Products
1 Apply an organic insecticide spray to the leaves and stems to penetrate the waxy coating and eliminate the scale insects.
Bonide Captain Jack's Neem Oil 32 oz
Bonide Captain Jack's Neem Oil 32 oz
0.9 L • 1 pcs • Organic
$10
In Stock
2 Wipe the sticky residue from the leaves using a soft cloth dampened with water or insecticidal soap to prevent fungal growth.
3 Inspect the undersides of leaves and crevices for any remaining insect clusters to prevent a secondary infestation.

Other Acer davidii problems

Your plant might also be experiencing one of these issues:

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