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1 October 2002 Development of Granular Boric Acid Sugar Baits for House Flies (Diptera: Muscidae)
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Abstract

Freeze-dried, granular sugar baits containing boric acid as the toxicant were evaluated against house flies, Musca domestica L., in two bioassays with toxicant dose ranges of 3, 5, 7, 8, and 12%, and 3, 5, 9, 17, and 33% boric acid, respectively, calculated and expressed on a dry weight basis. Flies in bioassay 1 were mixed sex and unstarved and flies in bioassay 2 were females only and starved 4 h before testing began. LC50s were 8.97 and 14.33%, and LT50s were 59.75 and 53.34 h in bioassays 1 and 2, respectively. Baits were tested at concentrations as high as 33%, however there was no indication of repellency as seen previously with liquid baits. Reasons for lack of repellency and potential uses for baits are discussed. Development of efficacious granular baits would allow the presentation of higher levels of boric acid in volumes much smaller than required for liquid baits.

Jerome A. Hogsette, David A. Carlson, and Alyce S. Nejame "Development of Granular Boric Acid Sugar Baits for House Flies (Diptera: Muscidae)," Journal of Economic Entomology 95(5), (1 October 2002). https://doi.org/10.1603/0022-0493-95.5.1110
Received: 22 January 2002; Accepted: 1 March 2002; Published: 1 October 2002
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