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Sawflies on European Black Elder
How to identify and get rid of sawflies on European Black Elder. Size: 10–25mm (larvae).
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Identifying sawflies on European Black Elder
Caterpillar-like larvae, often green or grey with rows of spots, distinguished from moth caterpillars by having six or more pairs of prolegs.
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Life cycle
Adults lay eggs in slits cut into leaf tissue or stems; larvae feed for several weeks before dropping to soil to pupate; multiple generations possible per year.
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Damage to European Black Elder
Larvae feed in groups, rapidly skeletonising or completely stripping leaves of roses, gooseberries, and other plants.
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How to treat sawflies on European Black Elder
Hand-pick larvae from foliage, checking undersides of leaves. Apply insecticidal soap for heavier infestations.
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Preventing sawflies on European Black Elder
Inspect susceptible plants regularly from mid-spring and remove eggs or young larvae early before defoliation spreads.