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Variegated leafroller

Platynota flavedana Clemens
Lepidoptera: Tortricidae

P. flavedana: Adult is grayish magenta with dark brown bands on the middle and end of the forewing (A). Larvae are pale green with yellowish green heads (B).

Distribution

P. flavedana: Southern parts of MI and NY to MA, and south to FL.

Damage

Both species attack apple. Both overwinter as early stage larvae in the orchard ground cover, feeding in early spring on low growth under trees. Adults lay eggs on apple leaves in early summer; larvae feed on foliage until midsummer. After a second flight, larvae may feed on fruit in late summer causing pinhole or excavation damage (C).

Similar Species

Compare to Sparganothis fruitworm (Sparganothis sulfureana Clemens). Larvae of both species are pale green with yellowish-green, but in the Sparganothis fruitworm, the dorsal side is a darker green than the ventral side, and the thoracic shield is narrowly edged with dark brown; antennae are black, borne on a white socket.

Management

Generally a problem only in selected sites. Can be monitored using pheromone traps, but summer leaf inspection is recommended to determine severity. Economic infestations can be controlled by the use of selective (e.g., Bacillus thuringiensis) or broad-spectrum insecticides.

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The MSU IPM Program maintains this site as an access point to pest management information at MSU. The IPM Program is administered within the Department of Entomology, fueled by research from the AgBioResearch, delivered to citizens through MSU Extension, and proud to be a part of Project GREEEN.