Abstract
Abstract Bagrada hilaris (Burmeister) (Hemiptera: Pentatomidae) is a stink bug species that preferentially attacks cruciferous crops. Because organic growers have limited insecticide tools for combating B. hilaris, the lethal and sublethal effects of organically approved insecticide products and their selected combinations against B. hilaris were examined in laboratory and field settings. In a topical spray assay, spinosad, either alone or in combination with pyrethrins, azadirachtin, and potassium salts, resulted in >95% mortality relative to the water-only treatment 48 h postapplication; whereas, stand-alone pyrethrins and azadirachtin failed to cause similar mortality rates. When adults were exposed to treated broccoli (Brassica oleracea var. italica Blenck) seedlings for 48 h after 0, 1, and 7 d of application, the number of feeding injury sites was significantly lower with the combined treatment of spinosad, pyrethrins, and azadirachtin than those on seedlings treated with water alone at 0 and 1 d p...
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