Proceedings of the 62nd Annual Western Orchard Pest and Disease Management Conference, held January 13-15, 1988 at the Imperial Hotel in Portland, Oregon.
Proceedings of the 63rd Annual Western Orchard Pest and Disease Management Conference, held January 11-13, 1989 at the Imperial Hotel in Portland, Oregon.
Dispersal and colonization of young potted apple
trees by the spider-mite predators Metaseiulus
occidentalis Nesbitt and Typhlodromus pyri Scheuten
were studied in the Hood River Valley of Oregon.
Experimental mini-orchards of 10 four-year old potted
apple trees were established at distances of 0, 10, and
100 m downwind from commercial...
Proceedings of the 64th Annual Western Orchard Pest and Disease Management Conference, held January 10-12, 1991 at the Imperial Hotel in Portland, Oregon.
Computer decision aids can help integrate and apply diverse sources of information and expertise to problems of integrated pest management (IPM) in agriculture and forestry. AppleMgr combines a rule-based expert system with databases and spreadsheets in a prototype decision aid intended to be expanded and modified for use by extension...
Genetics, gene flow, and distribution of pesticide
resistance traits were examined for organophosphate (OP)
resistance in three beneficial phytoseiid mites. Levels
and genetics of OP resistance in Amblyseius andersoni
were examined first. Laboratory strains from Italy and
Oregon, USA, were compared in susceptibility to
insecticides used in western Oregon fruit...
Proceedings of the 68th Annual Western Orchard Pest and Disease Management Conference, held January 12-14, 1994 at the Imperial Hotel in Portland, Oregon.