Chinch bugs and webworms/armyworms about the only insects I worry about each year on my warm season turfgrasses. I never used systemic insecticides on my lawns because of costs and I really didn't need them since I service every month. Started using imidiclopirid this year due to the cheaper prices, specifically dominion 2L. It has worked excellent, with bifenthrin, in regards to controlling chinch bugs, but I was kind of excited about possibly preventing webworms with it's systemic abilities. Got a call yesterday from a cust who said they were losing there lawn. Went out there today and found the lawn ravished by webworms. Dominion 2L was applied to this lawn at the highest rate, .6 oz M, on 4/14 and 6/16. Kinda dissapointing.