Proceedings of the 64th Annual Western Orchard Pest and Disease Management Conference, held January 10-12, 1991 at the Imperial Hotel in Portland, Oregon.
Proceedings of the 65th Annual Western Orchard Pest and Disease Management Conference, held January 9-11, 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...
The diamondback moth (Plutella xylostella L.) is a major
pest of crucifer crops worldwide. It is a particularly
important problem in Southeast Asia where climatic
conditions favor a short generation time and rapid
proliferation. In countries such as Thailand, the
diamondback moth has apparently become resistant to all
classes of...
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...
The feasibility of managing codling moth, Cydia pomonella (L.), with mixtures
of Bacillus thuringiensis-based microbial and selected chemical insecticides was
studied under laboratory and field conditions. Joint actions (synergism, additivity and
antagonism) of these mixtures were determined for both egg and larval stages. Higher
rates of microbial control agents (MCAs),...