how can i tell difference between slug infestation and brown patch? i treated for the slugs in early sept. have not noticed too much improvement. will it be gone next growing season? thank you
Kentucky blue is more resitant to brown patch than tall fescue. Brown patch pops up during hot, humid days. You will need a hand lens to look for lesions on individual blades. Look for brown lesions with a yellow/brown halo (border). Since you said your lawn is established, I wouldn't use any fungicides yet. Brown patch can be controlled by making changes to your maintenance plan. Brown patch favors high nitrogen levels, so don't use a fertilizer with excessive amounts of nitrogen. Fertlize in the fall or early spring avoiding applications in the summer.
