IN THE WORDS OF THE U.S. GOVERNMENT

"Studies evaluating the role of pesticides in birth defects
have found an association between maternal and paternal exposure to
pesticides and increased risks of offspring having or dying from birth
defects."
Source: U.S. Environmental Protection Agency (America’s
Children and the Environment)
For more
U.S. Government statements on the health effects of pesticides check
out this Fact Sheet (PDF)