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Search Results for "Leafrollers"

Leafroller Sampling Made Easier

Monday May 16, 2016 1:30pm
Leafrollers are nearly impossible to sample when they are in the first 2-3 instars because they are so small. DAS provides intervals during which sampling should occur well ahead of time. To sample leafrollers...

Preserving Biocontrol Agents

Monday May 16, 2016 1:30pm
Natural enemies (NE) are crucial to the long-term stability of management programs. Pesticides need to be chosen not only on the basis of efficacy against the pests, but also by minimizing their effect on natural enemies. DAS provides both the effects on pests and on the key natural enemies.

Which Leafroller Species is in Your Orchard?

Friday February 19, 2016 2:38pm
There are two leafrollers commonly found in Washington orchards: Pandemis leafroller (PLR) and Obliquebanded leafroller (OBLR). The phenology of the two species is quite different and you need to be sure which species you have for proper management and use the correct model on DAS. PLR used to be more common, but in the past 10 years, OBLR has displaced PLR from many of the production areas.

Delayed Dormant Sprays for Leafrollers

Friday February 19, 2016 2:38pm
Pandemis leafroller (PLR) and oblique-banded leafroller (OBLR) have different phenologies which are well documented on DAS. Delayed dormant sprays can work well for PLR, but are generally too early in the season for efficacy against larvae of OBLR.
Decision Aid System v. 6.3.33 (DAS) - Tree Fruit Research & Extension Center
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