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WSU Decision Aid System

WSU Decision Aid System

Oriental Fruit Moth Monitoring Required for Export to Mexico or Canada

Monday February 12, 2018 4:57pm
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.

Delayed Dormant Sprays

Tuesday January 02, 2018 12:29am
Dormant sprays are important for management of a wide range of pests including European red mite, woolly apple aphid, rosy and green apple aphids, and San Jose Scale. Most of these are easily controlled using a variety of materials, but if you are using oils, remember that good coverage is essential because they work by covering the egg stage and preventing respiration.

Which Leafroller Species is in Your Orchard?

Tuesday January 02, 2018 12:29am
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

Tuesday January 02, 2018 12:29am
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.

Canker Removal Now is Critical for Fire Blight Management this Year

Tuesday January 02, 2018 12:29am
No one wants fire blight in their orchard next year. For fire blight to take off in your orchard next year three things need to be there: the pathogen, the warm conditions and...
Decision Aid System v. 6.8.0 (DAS) - Tree Fruit Research & Extension Center
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