McNeill explains that glyphosate is a chelating agent, which means it clamps onto molecules that are valuable to a plant, like iron, calcium, manganese, and zinc. … The farmers’ increased use of Roundup is actually harming their crops, according to McNeill, because it is killing micronutrients in the soil that they need, a development that has been documented in several scientific papers by the nation’s leading experts in the field. For example, he says, harmful fungi and parasites like fusarium, phytopthora and pythium are on the rise as a result of the poison, while beneficial fungi and other organisms that help plants reduce minerals to a usable state are on the decline.  He explains that the overuse of glyphosate means that oxidizing agents are on the rise, creating oxides that plants can’t use, leading to lower yields and higher susceptibility to disease.

According to McNeill, problems with Roundup aren’t limited to the soil—they also extend to Roundup Ready crops and the animals that eat them.

McNeill says he and his colleagues are seeing a higher incidence of infertility and early-term abortion in cattle and hogs that are fed on GMO crops. He adds that poultry fed on the suspect crops have been exhibiting reduced fertility rates.