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Acer saccharum Sticky Leaves
eco Sticky Leaves

Acer saccharum – Sticky Leaves

Why does your Acer saccharum 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 Treeholder/Lace Bug Damage

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Aphid Infestation

Aphids feed on the sap of Sugar Maples, excreting a sugary substance known as honeydew that coats the leaf surface. This sticky residue can often lead to the growth of black sooty mold.

Very Common
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How to confirm: Inspect the undersides of the leaves for small, pear-shaped insects or clusters of tiny green/black bugs.
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 Wash the leaves with a gentle stream of water to remove the sticky residue and prevent the development of sooty mold.
3 Inspect the undersides of leaves and new growth regularly to catch any remaining pests before they multiply.
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Scale Insects

Scale insects attach themselves to the stems and leaf petioles of Acer saccharum, sucking nutrients and secreting honeydew. This results in a persistent sticky film on nearby foliage.

Common
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How to confirm: Look for small, hard, scale-like bumps attached to the twigs or the base of the leaf stalks.
build How to fix it
shopping_cart Recommended Products
1 Apply an organic insecticide spray to the tree to eliminate the scale insects and stop the secretion 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 Physically remove visible scale insects from stems and petioles using a soft cloth or cotton swab dipped in rubbing alcohol.
3 Thoroughly wash the sticky leaves with a gentle stream of water to remove the honeydew residue and prevent the growth of sooty mold.
warning

Sooty Mold Growth

While not the primary cause of stickiness, sooty mold grows on the honeydew left by pests. This dark fungus can make the leaves feel tacky and may eventually obstruct photosynthesis.

Common
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How to confirm: Check if the sticky residue is accompanied by a black, powdery coating that can be wiped off with a damp cloth.
build How to fix it
shopping_cart Recommended Products
1 Identify and treat the underlying pest causing honeydew production, such as aphids or scale, using an organic insecticide spray.
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 leaves with a soft cloth and water to remove the dark sooty mold residue and restore photosynthesis.
3 Monitor soil moisture levels to ensure the tree 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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Treeholder/Lace Bug Damage

Certain lace bug species feed on the sap of maple leaves, causing both stippling (white spots) and the secretion of sticky honeydew.

Common
lightbulb
How to confirm: Examine if there are small light-colored spots on the leaf surface alongside the sticky residue.
build How to fix it
shopping_cart Recommended Products
1 Apply an organic insecticide to eliminate the lace bug population and stop the secretion 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 Wash the leaves with a gentle stream of water to remove the sticky residue and prevent the growth of sooty mold.
3 Monitor the tree's health using a moisture meter to ensure the tree remains hydrated, as pest stress can exacerbate drought sensitivity.
GROWIT Soil Moisture Meter - Blue
GROWIT Soil Moisture Meter - Blue
Water Meters
$12
In Stock

Other Acer saccharum problems

Your plant might also be experiencing one of these issues:

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eco Fine Webbing chevron_right
local_hospital All symptoms eco All plants with sticky leaves
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