In this study, white rust of spinach was managed by applications of BAS 500, a broad spectrum fungicide, Actigard, a plant systemic acquired resistance activator, and Naiad, a surfactant. The focus was to determine the impact of these fungicides on the natural infections of the green peach aphid, Myzus persica, by entomopathogenic fungi as well as on the whole insect community. In the fall crop of 2002, a reduction in the percentage of leaves infested with aphids was observed in the Naiad treatment only. A reduction in the percentage of infected aphids was not observed for any of the treatments. In both crops of spring and fall of 2002, total insect communities were extracted from spinach plants by Berlese funnels. These data are currently being analyzed using multivariate means.
Species 1: Homoptera Aphididae Myzus persicae (green peach aphid)
Keywords: spinach, entomopathogenic fungi
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