Hi George, How effective is BT for the borers. I don't have any yet. Years ago down in Galveston Co. I had borers every summer. I have used BT with good results on catapillers,horn worms and loopers. I don't know if I'm going to need to worry too much about pests if it doesn't rain soon. The temp has been in the 98-100 range for the past week. Today it is 100 again. The heat index is higher than that. I have a sandy-loam soil. The top 2-3 inches is like dry beach sand right now. It doesn't want to absorb water very readily either. I have been using drip irrigation and mulching. I guess that is what has saved us so far. If any one has a sure fire rain dance or spell I'd like to borrow it. Hoping for rain, Allen Bastrop Co.,Tx. Zone 8