The method for simultaneous determination of residues of seven pyrethroids (bifenthrin, cyfluthrin, lambda-cyhalothrin, cypermethrin, deltamethrin, fenvalerate and permethrin) in animal meat samples has been developed and validated. The method is based on the extraction of pyrethroid residues with mixture of acetone-petroleum ether, freezing step, clean-up on a Florisil column, and finally dete...

Pyrethroid pesticides have replaced organophosphates for many urban applications, including structural pest control, landscape maintenance, and residential home and garden use. This study was intended to determine if pyrethroids are detectable and widespread in diverse urban systems and if concentrations are high enough to cause associated aquatic toxicity. Urban creeks in California and Tennes...

Bed bugs are hematophagous insects responsible for a re-emerging and challenging indoor pest in many countries. Bed bugs infestations may have health consequences including nuisance biting, cutaneous and systemic reactions. This resurgence can probably be attributed to factors such as increased international travel and development of resistance against insecticides. Resistance against pyrethroi...

During the last decade there has been increasing emphasis on getting farmers to control tsetse themselves, instead of relying on governments or donor organizations. The only techniques that are feasible in such self-help schemes are bait methods, and the most cost-effective of these is the application of pyrethroids to cattle, provided there are adequate numbers of cattle spread fairly evenly w...

Ion channels are integral membrane proteins that are critical for neuronal function. They form pores in the plasma membrane that allow certain ions to travel with their concentration gradient across the membrane. Those that open in response to a change in membrane potential are called voltage-gated ion channels. Channels that open in response to binding by a chemical signal or molecule are liga...

Deltamethrin, a member of the pyrethroids, one of the safest classes of pesticides, is among some of the most popular and widely used insecticides in the World. Our objective was to synthesize an oxabicyclolactone 6 and five novel pyrethroids 8–12 from readily available furfural and D-mannitol, respectively, and evaluate their biological activity against four insect species of economic im...