The US lacks standardized methods to assess products for potency and safety. That’s a big problem for the labs tasked with doing the testing.

The physician, toxicologist, and expert witness drew attention to health issues caused by radiation and toxic chemicals.

The agency argues that chlorpyrifos is one of few “cost-effective options” for controlling certain farm pests.

The companies that market the products, Syngenta, Valent, and Bayer, are allowed to sell existing stock of the chemicals until 2020.

The state’s Environmental Protection Agency says that evidence of the chemical’s link to neurological problems in children is overwhelming.

Flupyradifurone, sold as Sivanto, is reported to have greater lethal and sublethal effects on honey bees when combined with a common fungicide.

Scrutinizing a company’s study on a widely used pesticide, chlorpyrifos, academic researchers find shortcomings in analyses and public disclosures of results.

A high-tech approach to monitoring bee activity inside the nest reveals how the neonicotinoid imidacloprid impairs colony growth.

Sulfoxaflor, an alternative insect-killer to older chemicals that decimate pollinators, turns out to kneecap colonies.