Oblique Banded Leafroller

Choristoneura rosaceana
Description

The adult is a small, reddish-brown moth with numerous small lines and a larger dark band crossing the forewings. The larvae can be various shades of green with brown heads and neck shields. They also have several raised white spots along the length of their body.

Damage

Larvae tie leaves, buds and developing fruit together. Feeding inside sometimes expansive webs, they can defoliate entire trees as well as destroy fruit.

Stage Timing Where to Look
Adults
(1st flight)

(2nd flight)
3 weeks after petal fall and continuing up to 4 weeks

Early August through 2 weeks past petal fall

 Pheromone traps and resting on upper leaf surfaces


Same as above.
Eggs 7-10 days after first emergence of adults Upper leaf surfaces.
Larvae
(overwintering)		 2-10 days after eggs are laid

Overwinters in protected sites throughout tree and in the spring moves to tender growth and flower buds.
Larvae
1st generation

Late July through early November

Terminal growth and developing fruit.
Larvae
2nd generation

Mid August through harvest

Primarily leaves and occasionally fruit
Pupae Three weeks past petal fail through early September Tightly enclosed in or near feeding sites.