Azalea: Obliquebanded leafroller
Photo by: A.L. Antonelli
Biology
Obliquebanded leafrollers are usually found on the new growth. Their presence can be determined by rolled leaves held in place with webbing.
The smooth green caterpillars, about 3/4″ long, can be found feeding inside the rolled leaves.
The adult is an orange-brown moth approximately 1/2″ long and bell shaped from above when at rest.
Management Options
See "Using Integrated Pest Management (IPM) in the Landscape" for successful problem management techniques.
Non-chemical Management
Select non-chemical management options as your first choice!
- Naturally-occurring parasites and predators including birds and predaceous ground beetles will help control leafroller populations.
- Pinch leaves to kill individual leafrollers.
Chemical Management
IMPORTANT: Always read and follow label directions when working with pesticides.
For more information on using pesticides visit :
- Apply when larvae are present and feeding.
- Sevin (carbaryl) is particularly dangerous to honeybees since it does not immediately kill them. They return to the hive with the poison and distribute it within. Therefore avoid carbaryl if at all possible if there is a chance of pesticide drifting onto nearby blooming plants.
- Bacillus thuringiensis (Bt) will control leafrollers only if they are actively feeding.
- Use a spreader-sticker with liquid Bt formulations.
Approved Pesticides
If you choose to use a pesticide, some examples of products that are legal in Washington are listed below. Some products are labeled for just INDOOR or just OUTDOOR use, or may allow both uses. Be sure to choose a product appropriate for your situation. Always read and follow all label directions.
Additional Image
Photo by: J.F. Brunner
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Evidence of noncompliance may be reported through your local Extension office.