Plum Sawfly vs Hazel Sawfly

Side-by-side species comparison

Attribute Plum Sawfly Hazel Sawfly
Scientific Name Hoplocampa flava Croesus septentrionalis
Order Hymenoptera Hymenoptera
Family Tenthredinidae Tenthredinidae
Size 4-6 mm 8-10 mm
Habitat Orchards Heathland
Diet Fruit Feeders Herbivores
Regions Europe Europe, Western Asia
Conservation Least Concern Least Concern

Plum Sawfly

A small, yellowish-brown sawfly that is a pest of plum orchards. Larvae bore into developing plum fruitlets, causing them to drop prematurely.

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Did You Know?

Larvae can be detected by their distinctive wet frass, which oozes from entry holes in young plum fruitlets.

Hazel Sawfly

A medium-sized sawfly with an orange abdomen and dark thorax. The bluish-green larvae with black heads feed gregariously on hazel, birch, and alder.

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Did You Know?

When disturbed, the gregarious larvae raise their tails simultaneously in an S-shape, creating an intimidating group display to deter predators.