OBJECTIVES This study presents criteria for assessing the individual pesticide burden of workers in the chemical industry. METHODS A group of 1003 workers exposed to methylparathion or ethylparathion (alkyl phosphates), propoxur (carbamate), or cyfluthrin (pyrethroid) was investigated. After exposure to methylparathion or ethylparathion the methylparathion or ethylparathion and methylparaoxon...

β-Cyfluthrin, is a broad-spectrum type II synthetic pyrethroid insecticide. People are exposed to cyfluthrin by consuming contaminated food and from residues persisting after indoor or outdoor applications of cyfluthrin containing products. The aim of this study was to evaluate the neurobehavioral toxicity of cyfluthrin after oral administration to Swiss albino mice. Male weanlings (21 days old...

Beta-cyfluthrin (OMS 3051), a new synthetic pyrethroid and one of the stereoisomers of cyfluthrin, was studied for insecticidal activity against eight mosquito species. Its larvicidal activity with LC50 values of 5.62 x 10(-5) and 1.19 x 10(-4) mg/l respectively for Culex quinquefasciatus and Aedes aegypti was comparable with that of deltamethrin. This pyrethroid was more effective against the ...

Climate change increases average temperatures and the occurrence of extreme weather events, in turn accentuating risk organism exposure to temperature stress. When thermal conditions become stressful, sensitivity insects toward insecticides can be exacerbated. Likewise, subsequently influence their ability handle stressful temperatures. Here, we investigated effects constant daily heat spikes, ...

Cypermethrin and beta-cyfluthrin are two most widely used multipurpose pyrethroids. After determining their oral LD50 (416.98 mg kg-1 and 354.8 mg kg-1 body weight, respectively), we assessed their hepatotoxicity in Wistar rats following acute (0.1 LD50 for 1 day) and sub-acute (0.1 LD50 for 7, 14, 21 or 28 days) poisoning. The assessment was based on hepatic marker enzymes AST, ALT, LDH, ALP, ...

In laboratory trials, concrete was treated with cyfluthrin wettable powder (WP) at 40mg active ingredient [AI] cyfluthrin WP/m, then heated for 4, 8, or 16 h at either 451C or 551C, or treated but not heated (seven treatment combinations). Bioassays were conducted by exposing adult Tribolium castaneum (Herbst) for 0.5, 1, and 2 h. Survival of T. castaneum was generally greater on unheated concr...

The insecticidal effect of Temprid, a formulation that contains beta-cyfluthrin and imidacloprid, was tested on concrete for control of seven stored-product insect species: the rusty grain beetle, Cryptolestes ferrugineus (Stephens); the sawtoothed grain beetle, Oryzaephilus surinamensis (L.); the red flour beetle, Tribolium castaneum (Herbst); the confused flour beetle, T. confusum Jacquelin d...

Beta-cyfluthrin (CYF) is a commonly used synthetic pyrethroid having both agricultural and domestic applications. The present study aimed to evaluate the neurobehavioural effects of beta-cyfluthrin in adult rats administered at doses 25 mg/kg body weight/day and 12.5 mg/kg body weight/day for a period of 30 days. Motor coordination and spatial memory were found to be impaired by beta-cyfluthrin...

susceptibility levels of a lab strain of an. stephensi to who standard papers of ddt 4%, dieldrin 0.4%, malathion 5%, permethrin 0.25%, lambdacyhalothrin 0.1%, cyfluthrin 0.1% and deltamethrin 0.025% were determined in our laboratory in 1999. results showed that at the diagnostic dose of insecticides this species exhibited resistance to ddt and dieldrin with mortality rate of 54±2.5% and 30±2.5...

Mosquito larvae were collected from the houses of dengue infected patients in Bangkok, Thailand from 55 sites (36 out of the 50 districts of Metropolitan Bangkok). Aedes aegypti larvae were tested against temephos using WHO bioassay techniques. Adult mosquitoes were tested for susceptibility to permethrin, deltamethrin, cyfluthrin, malathion and DDT using WHO diagnostic doses. Most of the larva...