Farmers have been using the weed killer glyphosate – a key ingredient of the product Roundup – at soaring levels even as glyphosate has become increasingly less effective and as health concerns and lawsuits mount.

A Silicon Valley startup is pitting itself against major seed companies, alleging that those companies are price gouging in the Heartland.

Dicamba, the controversial herbicide used on soybeans and cotton, is responsible for thousands of acres of damaged crops in recent years. Experts say that despite new federal rules that go into effect in 2019, the drift will continue but the victims will be different.

In a lab at George Washington University, painted lady butterflies flutter in mesh houses. This is where assistant professor Arnault Martin and his research group use the new gene-editing technique CRISPR to unlock secrets about the colors and spots on the butterflies’ wings.