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What is the sticky residue on the leaves of my lemon tree?


Our Advice:

This is honeydew which has been excreted by either mealy bug or scale insects as they feed on the plant. If it is not dealt with, it will weaken the plant. Spray with Bug Clear Ultra Gun from Scott's or Plant Rescue for Flowering Plants from Westland.

Gardening Expert:
Steve Bradley

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Angle shades moth
Anthracnose
Box blight
Box tree caterpillar
Canker - Bacterial
Canker - Bleeding
Canker - Fungal
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Coral spot
Cutworms
Earthworms
Earwigs
Eelworms (leaf & stem)
Eelworms (soil-borne)
Froghopper
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Garden Ants
Grey mould
Honey fungus
Leaf cutter bees
Leaf Rolling Caterpillars
Leaf spots - Fungal
Leatherjacket
Lily beetle
Mealy bugs
Mildew - Downy
Mildew - Powdery
Millipedes
Pear midge
Phytophthora root rot
Rose Black spot
Rusts
Sawfly - Berberis
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Scale insects
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