WSU Decision Aid System

WSU Decision Aid System

Leafroller and Codling Moth Movement During the Season

Thursday April 19, 2018 12:00am
Movement of codling moth and leafrollers into your orchard can be the start of serious damage. Both CM and leafrollers can easily fly 5-7 miles in a single night and their reproduction is as high as those that do not fly. Although 5-7 mile flights are common, the likelihood of the moths coming to your orchard in high numbers is directly related to wind speed, distance from the source, and the environment in between the source and your orchard.

NEW Model: Honey Bee Foraging

Wednesday April 11, 2018 12:39pm
Are the weather conditions favorable to bee foraging activity? The new honeybee foraging model predicts bee activity by looking at past, current, and forecast weather conditions.

San Jose Scale Management

Wednesday April 11, 2018 12:37pm
San Jose scale is a relatively easy pest to control, but a dangerous one to leave uncontrolled.  After a few years of infestation, limbs and even entire trees can be killed if heavily attacked, and high percentages of the fruit can be infested. Large trees are most often associated with scale problems, because of the suitable habitat they provide and the difficulty of obtaining thorough spray coverage.  However, young trees can also develop a scale problem surprisingly quickly.

How to Effectively Manage Codling Moth

Wednesday April 04, 2018 12:55pm
Without any intervention, codling moth numbers increase about four-fold from generation to generation. Therefore, targeting the first generation is important to reset the population size to a minimum. Control measures for subsequent generations can be adjusted to the local pest pressure indicated by trap counts.

Western Flower Thrips

Wednesday April 04, 2018 12:07pm
Western flower thrips feeding causes bloom distortion and poor fruit set. Egg-laying punctures create "pansy spot" on some cultivars. Adults can be sampled using either beating trays or blue sticky cards.
Decision Aid System v. 6.8.0 (DAS) - Tree Fruit Research & Extension Center
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