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Conservation Biology of Syrphids, Predators of Woolly Aphid in Central Washington.
Woolly apple aphid Eriosoma lanigerum is a secondary pest whose outbreaks have occurred more often since about 2000. The increase in aphid outbreaks appears to be associated with the changes in pesticide programs and disruption of biological control. Nevertheless, there is a good opportunity for biological control of this pest in orchards under “soft” pesticide […]
Integrating low-disturbance organic grain and livestock production
This research addresses primary constraints on organic dryland grain production in Eastern Washington by developing conservation tillage practices for organic systems, N supply data for grain crops after forages, methods of establishing organic crops, alternative forages, and economic comparisons of mixed crop-livestock systems versus other alternatives. Integration of crops with livestock provides nutrient cycling, and […]