Leafroller Sampling Made Easier

Friday Apr 15, 2022

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...

Factors Affecting Bee Pollination of Tree Fruits

Friday Apr 15, 2022

Nearly 1,000 species of bees occur in the Pacific Northwest, but only a small number of species are useful in the pollination of orchard crops. Pesticide use and loss of appropriate nesting habitat have reduced the numbers of wild bee pollinators, leaving most of the pollination for commercial orchards dependent on honeybees. The success of honeybee pollination in tree fruits is affected by a number of factors, which in part can be manipulated by orchardists and beekeepers.

Degree-Day Models

Friday Apr 08, 2022

Have you ever wondered why different pests have different degree-day sums? Here is why:

How to Effectively Manage Codling Moth

Friday Apr 08, 2022

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.

NEW! How To page on DAS

Thursday Apr 07, 2022

Introducing a new feature of the DAS website! We have added a “How To” page featuring videos showing how to register for DAS, subscribe to weather stations, use the many different models a...