 Louisiana is seeing an increase in the fall webworm population for this time of year. They could cause major damage to your fruit and nut trees. Jeff Palermo has the story. LSU AgCenter urban entomologist Aaron Ashbrook says last year's drought is a possible reason on why we're seeing more fall webworms at this time of the year. Fall webworm can be very problematic in the production of fruits and nut where they're defoliating those trees again and impacting the ability for those trees to produce their produce.