Aphytis Wasp vs Pear Leaf-curling Midge

Side-by-side species comparison

Attribute Aphytis Wasp Pear Leaf-curling Midge
Scientific Name Aphytis melinus Dasineura pyri
Order Hymenoptera Diptera
Family Aphelinidae Cecidomyiidae
Size 0.8-1.2 mm 1-2 mm
Habitat Orchards Orchards
Diet Parasitoids Herbivores
Regions Worldwide citrus-growing regions Europe, Asia, introduced to North America and Australia
Conservation Not Evaluated Least Concern

Aphytis Wasp

A tiny golden-yellow parasitoid wasp that is the primary biocontrol agent of California red scale on citrus. It lays eggs beneath the scale cover where its larva feeds externally on the host.

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Did You Know?

California produces over one billion of these wasps per year for release in citrus orchards.

Pear Leaf-curling Midge

A minute gall midge whose larvae cause pear leaves to roll tightly inward along their margins. Multiple generations can occur per year, progressively damaging pear tree foliage.

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Did You Know?

The larvae manipulate plant growth hormones to force leaves to curl around them, creating a protective shelter.