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1 December 2003 Nontarget Insects Captured in Fruit Fly (Diptera: Tephritidae) Surveillance Traps
Donald B. Thomas
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Abstract

Traps baited with synthetic lures (ammonium acetate and putrescine) captured as many Mexican fruit flies as the traditional torula yeast/borax slurry, but with far fewer (ratio 5:1) nontarget insects. Ninety percent of the nontarget insects were dipterans. Consequently, neither trap is efficacious against other citrus pests, which are mainly Hemiptera or Lepidoptera. Although the nontarget catch is sometimes referred to as “trash,” many nontarget insects are beneficials, including predators and parasites (especially tachinids). The traps with synthetic lures killed fewer of these beneficials by a ratio of 4:1 compared with the yeast-baited traps. Certain taxa, notably the chrysopids and halictid bees, exhibited a somewhat greater preference (10 and 50%, respectively) for the synthetic lures. Overall, with regard to the deployment of the newer baits, the threat to predators, parasites, and pollinators was found to be negligible, and certainly much less than that posed by the traditional traps.

Donald B. Thomas "Nontarget Insects Captured in Fruit Fly (Diptera: Tephritidae) Surveillance Traps," Journal of Economic Entomology 96(6), 1732-1737, (1 December 2003). https://doi.org/10.1603/0022-0493-96.6.1732
Received: 3 April 2003; Accepted: 1 August 2003; Published: 1 December 2003
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