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Depression: 21st Century Solutions + The Dark Side of Wheat

Abstract Title:

Boric acid bait kills adult mosquitoes (Diptera: Culicidae).

Abstract Source:

J Econ Entomol. 2003 Oct;96(5):1559-62. PMID: 14650531

Abstract Author(s):

Rui-De Xue, Donald R Barnard

Article Affiliation:

Center for Medical, Agricultural, and Veterinary Entomology, USDA-ARS, P.O. Box 14565, Gainesville, FL 32604, USA.

Abstract:

The toxicity of boric acid solutions to adult Anopheles quadrimaculatus Say, Culex nigripalpus Theobald, and Aedes albopictus Skuse was evaluated in the laboratory. Median lethal concentrations (LC50 in %) at 24-h exposure for male and female An. quadrimaculatus were 0.317 and 0.885, respectively; for Cx. nigripalpus, 0.273 and 0.560, respectively; and for Ae. albopictus, 0.174 and 0.527, respectively. The LC50 values at 48-h exposure for male and female An. quadrimaculatus were 0.101 and 0.395, respectively; for Cx. nigripalpus, 0.098 and 0.255, respectively; and for Ae. albopictus, 0.078 and 0.244, respectively. In laboratory tests, access for 48 h to sucrose (10%) water containing 1% boric acid (boric acid bait) resulted in 98% mortality in blood fed, gravid, and parous Ae. albopictus. When offered a choice between boric acid bait and sucrose water, 52% of male and 33% of female Ae. albopictus ingested sufficient boric acid bait in 24 h to cause death; after 48 h, respective percent mortalities were 88 and 58%. In outdoor tests, in a walk-in screened cage (156 m3) containing 1,250 female Ae. albopictus, mosquito biting rates on the exposed forearm of a human subject in 3-min exposure were reduced>or = 78% for the boric acid bait treatment, compared with a sucrose water control.

Study Type : Animal Study
Additional Links
Problem Substances : Boric Acid : CK(44) : AC(23)

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Sayer Ji
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Depression: 21st Century Solutions + The Dark Side of Wheat

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