Abstract
The compatibility of six citrus pesticides with a field population of Euseius stipulatus (Athias-Henroit) was investigated. The ability of E. stipulatus to feed on pollen allowed observation of mortality due to the pesticides alone without the interference of predator starvation caused by prey mortality. All pesticides tested except chlorobenzilate significantly reduced predator population densities beyond 66 days postspray. When population reductions were analyzed as cumulative predator mite days, all materials again caused significant reductions in potential predation by E. stipulatus, even at 83 days postspray. The effects of predator reductions in relation to pest management are discussed.
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