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WSU Decision Aid System

WSU Decision Aid System

Factors Affecting Bee Pollination of Tree Fruits

Monday January 02, 2017 1:05am
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.

Apply Mating Disruption Dispensers Before First Moths Fly

Monday January 02, 2017 1:05am
Mating disruption dispensers work by releasing synthetic pheromone which prevents or delays males from finding and mating with females. Therefore, dispensers need to be placed in your orchard before the first moths fly and mate. First moth flight (= biofix) occurs at around 175 DD. We recommend to place pheromone traps before first apple blossoms open or by 100 DD whichever comes first.

Oriental Fruit Moth Monitoring Required for Export to Mexico or Canada

Monday January 02, 2017 1:05am
All stone fruit packed for shipment to Mexico or British Columbia, Canada must be inspected and be certified as free of oriental fruit moth (OFM). OFM must be monitored with traps from first adult flight throughout the season.

Taiwan Protocol and Export Required Sampling

Thursday July 14, 2016 12:01am
Those expecting to export apples to Taiwan need to have their training updated every two years and use the sampling protocols negotiated with Taiwan. Three Orchard and Field Bin Sampling Protocol training sessions are scheduled for August.

Bin Piles Are a Source of CM Off the Normal Model

Friday July 01, 2016 12:00am
Bin piles placed in the orchard are often a source of codling moth. Larvae spin up in the bins in the fall and emerge when the bins are placed in the field. Because the bins in the center of a pile are insulated from temperature changes, adults emerge from bins at different times than predicted by the model.
Decision Aid System v. 6.3.33 (DAS) - Tree Fruit Research & Extension Center
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