Effect of benomyl on egg production in the predatory mites, Amblyseius victoriensis and Typhlodromus doreenae
David G. James and Jennifer Whitney, Yanco Agricultural Institute, NSW Agriculture, Yanco, New South Wales 2703, Australia.
The effect of residues of the fungicide benomyl on egg production in the predatory mites, Amblyseius victoriensis (Womersley) and Typhlodromus doreenae Schicha was examined in the laboratory. Egg production by A. victoriensis was significantly lower (0.05-0.3 eggs-1 day-1 on benomyl-treated leaf discs than on untreated discs (1.0-1.97 eggs-1 day-1 ). Egg production by T. doreenae was not significantly different on benomyl-treated or untreated discs in most tests (0.66-0.86 eggs-1 day-1). Benomyl is not recommended for use in stone fruit or grapes when A. victoriensis is used to control mites, but might be used when T. doreenae is the principal predator.
Plant Protection Quarterly (1997) 12 (4) 173-174.