As the climate gets warmer, other impacts that can affect agriculture are also being observed. Warmer winters mean more overwintering of pests and diseases. A longer growing season can make your fields and orchards more susceptible to pests that were previously not an issue. Warmer conditions may also shorten the time between generations of insects, resulting in the need for more frequent application of pesticides. This article from Growing Produce discusses the changes that are being seen in California, but similar impacts are also likely throughout the Southeast.
