pyrethroids


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py·re·throids

(pī-rē'throydz),
Synthetic pyrethrin derivatives that are used as insecticides; as a class these agents are less toxic to mammals than other effective insecticides.

pyrethroids

synthetic substances with activity similar to the naturally occurring pyrethrins. They include cypermethrin, cyhalothrin, deltamethrin, flumethrin, permethrin.
References in periodicals archive ?
Although more than 1,000 pyrethroids have been discovered, most of them are not yet commercialized.
10, 14-17) Populations of P papatasi were shown to be susceptible to pyrethroid and organophosphate insecticides in laboratory studies of field-collected sand fly samples from North Africa and the Middle East.
TEHRAN (FNA)- Researchers provided new evidence of neurotoxicity in humans from pyrethroid insecticides, which are found in a wide variety of products and uses.
Given the growing use of pyrethroids and the perception that they are a safer insecticide alternative, our results may be of considerable public health import.
Although pyrethroids are considered to be safer than other insecticides, rodent studies suggest that early-life and pubertal pyrethroid exposures alter neurobehavioral functioning (Farag et al.
5% in June 2013) but low mortality rates to DDT (range 0%-3%) and for the pyrethroids deltamethrin and permethrin (range 1%-6%) However, no significant differences were found between results of the 3 successive years (p = 0.
There are few reports of decreased susceptibility to synthetic pyrethroids in various parts of the country (12-14).
This is considered particularly worrying for growers following restrictions on neonicotinoid seed treatments, which will make controlling cabbage stem flea beetle reliant on pyrethroid insecticides.
This new research shows how specific P450 genes can engender resistance across insecticides with entirely different modes of action: DDT and pyrethroids target a voltage-gated sodium channel (a nerve cell membrane channel), whereas carbamates and organophosphates target the neurotransmitter Acetylcholinesterase, encoded by the gene ACE-1.
Health Ministry officials monitored the application of a type of insecticide, pyrethroids, in three areas of the Northern Governorate village.
It was concluded that working on commercial aircrafts disinfected by pyrethroids resulted in elevated body burden of 3-PBA, cis-and trans-Cl2CA, two urinary metabolites of pyrethroids.
Currently, only pyrethroids are approved by the WHO for LLIN treatment.