Pesticide warning sign in an orange grove. The sign, in English and Spanish, warns that the pesticide chlorpyrifos, or Lorsban, has been applied to these orange trees.

Chemicals used to fight Zika, agricultural pests affect motor skills in infants

A chemical used in the fight against Zika virus and a controversial insecticide used across the United States are associated with reduced motor function in Chinese infants according to a new study by the University of Michigan.