Introduction The toxicity of pesticides to birds has long been a matter of concern to conservationists, and is a factor taken into consideration by regulatory authorities when making environmental risk assessments for new chemicals. Experience has shown that toxicity data obtained using rats, mice and rabbits do not provide reliable guidance as to avian toxicity. Where the toxicity of a pestici...

The agricultural industry and urban pesticide users are increasingly relying upon pyrethroid insecticides and shifting to more potent members of the class, yet little information is available on residues of these substances in aquatic systems under conditions of actual use. Seventy sediment samples were collected over a 10-county area in the agriculture-dominated Central Valley of California, w...

A survey of Tanzanian health care providers in agricultural areas was undertaken in 1991-1994 to assess their knowledge of toxic effects of pesticides, experiences and practices, as well as of their needs for appropriate information in order to develop effective strategies for reducing pesticide poisoning. Face-to-face interviews were conducted with 104 physicians, clinical officers and nurses ...

Acute static bioassays were conducted with 13 pesticides to determine their comparative toxicity to fish. There was a wide range in the toxicity of these compounds with 96-hour TLm values ranging from 0.0033 to 4.0 mg/1. Of the compounds tested, Thiodan, a chlorinated hydrocarbon, and Thimet, an organic phosphorus pesticide, were the most toxic; and Bayer 29493, an organic phosphorus compound, ...

This study determined pesticide residue levels in some fruits Tokat province, Turkey and assessed health risks associated with the residues. A analytical method was validated to determine 260 pesticides by using liquid chromatography–tandem mass spectrometry (LC–MS/MS). Pesticide solutions (10 50 µg kg­¹) were applied pesticide-free apple matrix for validation of method. The linearities (R2), l...

In India, the diamondback moth, Plutella xylostella (L.) (Lepidoptera: Plutellidae), is an important pest of cruciferous vegetables and causes severe economic losses. This pest has ability to evolve resistance in laboratory and field to almost all groups of synthetic insecticides. Despite of these, management with synthetic insecticides has been considered to be the easy and favorable option by...