Susceptibility of first instar Toxorhynchites splendens to malathion, naled and resmethrin

Acute toxicity tests were conducted to measure the response of first instar Toxorhynchites splendens to commonly used mosquito adulticides: malathion, naled and resmethrin. The concentrations of pesticide causing 50% mortality (LC50) after 24 h was 2.87, 69.1 and 623 ppb for resmethrin, malathion an...

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Bibliographic Details
Published in:	Journal of the American Mosquito Control Association Vol. 9; no. 1; p. 97
Main Authors:	Tietze, N S, Schreiber, E T, Hester, P G, Hallmon, C F, Olson, M A, Shaffer, K R
Format:	Journal Article
Language:	English
Published:	United States 01-03-1993
Subjects:	Animals Culicidae Larva Malathion Mosquito Control - methods Naled Pyrethrins
Online Access:	Get more information
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Summary:	Acute toxicity tests were conducted to measure the response of first instar Toxorhynchites splendens to commonly used mosquito adulticides: malathion, naled and resmethrin. The concentrations of pesticide causing 50% mortality (LC50) after 24 h was 2.87, 69.1 and 623 ppb for resmethrin, malathion and naled, respectively. Naled was determined to be the least toxic of the 3 compounds tested for integrated use with Tx. splendens. The latter assessments were based on comparisons between laboratory-derived dose-response curves and maximum concentrations reached in standing water calculated using standard application rates.
ISSN:	8756-971X