Pisum sativum Sticky Leaves - Causes & Fixes

Jump to cause: Aphid Infestation Whitefly Infestation Sooty Mold Development

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Aphid Infestation

Aphids are common pests on Pisum sativum that pierce the plant tissues to suck sap, excreting a sugary substance known as honeydew. This honeydew creates the characteristic sticky residue on leaves and stems.

Very Common

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How to confirm: Inspect the undersides of young leaves and growing tips for small, soft-bodied insects like green or black aphids.

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

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2 Use yellow sticky traps to capture adult aphids and prevent further infestation of your pea plants.

Super Ninja Fungus Gnat Traps - 30 Pack

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3 Gently wipe the sticky residue off the leaves with a damp cloth to prevent the growth of sooty mold.

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Whitefly Infestation

Whiteflies feed on the underside of pea leaves, secreting honeydew that makes the foliage sticky and can eventually lead to sooty mold growth. Their presence often results in a fine white powdery appearance on the leaf surface.

Common

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How to confirm: Gently tap the plant to see if tiny white insects fly up from the foliage.

build How to fix it

shopping_cart Recommended Products

1 Apply an organic insecticide to eliminate the whitefly population and stop the secretion of honeydew.

Bonide Captain Jack's Neem Oil 32 oz

0.9 L • 1 pcs • Organic

$10

In Stock

2 Deploy yellow sticky traps around the plant to capture adult whiteflies and prevent further reproduction.

Super Ninja Fungus Gnat Traps - 30 Pack

30 pcs

$7

In Stock

3 Gently wipe the sticky leaves with a damp cloth to remove honeydew and prevent the development of sooty mold.

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Sooty Mold Development

While not a primary cause, sooty mold is a fungus that grows on the sticky honeydew left by sap-sucking insects. It presents as a black, velvety coating that can block sunlight from reaching the pea plant's photosynthetic cells.

Common

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How to confirm: Check if the stickiness is accompanied by a dark, crusty, or soot-like film covering the leaves.

build How to fix it

shopping_cart Recommended Products

1 Identify and treat the underlying sap-sucking insects, such as aphids or whiteflies, which produce the sticky honeydew that attracts sooty mold.

Bonide Captain Jack's Neem Oil 32 oz

0.9 L • 1 pcs • Organic

$10

In Stock

2 Gently wipe the black mold off the leaves with a soft cloth or a mild horticultural soap solution to restore sunlight access to the plant's photosynthetic cells.