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THE OCCURRENCE OF PHYTOSEIULUS PERSIMILIS ATHIAS-HENRIOT (ACARINA:PHYTOSEIIDAE) IN AN ORCHARD IN VICTORIA |
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| Authors: | P. M. Ridland D. S. Morris D. G. Williams R. B. Tomkins |
| Affiliation: | Plant Research Institute, Department of Agriculture and Rural Affairs, Swan Street, Burnley, Vic. 3121. |
| Abstract: | b High numbers of the predatory mite, Phytoseiulus persimilis , were found on apple and nectarine trees in a commercial orchard at Werribee, Victoria in February 1981. In the following season, again it was not detected on trees or broad-leaved weeds in the orchard until late summer. Slide-dip tests on the Werribee population of P. persimilis and a population originating from strawberries in Sydney, New South Wales, showed that azinphos-methyl was equally toxic to the 2 strains and DDT was considerably less toxic to both. |
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