Reptiles hormone effects

Though no pesticide or other chemical impacts all six processes, it is very clear that simultaneous exposures to multiple pesticides can have greater effects than those expected from exposures to single pesticides alone. For example, alachlor and atrazine are two herbicides that are applied together to cornfields in Nebraska [7]. Alachlor binds to and activates the estrogen receptor [8]. Atrazine interferes with hormone synthesis [9]. In the Nebraska study cited, the two herbicides were also mixed with seven other pesticides and induced reproductive effects in reptiles far in excess of those predicted by a consideration of the individual species [7]. 

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