We used Nature Shield recently on some 2-3′ Sugar Maples in Oregon, when I learned that Moisturin was no longer available from our supplier. Trees were sprayed prior to digging in June and did not even wilt in the slightest. They looked great when they were shipped to Spokane, WA. So far, I’m a firm believer in this product. Going to try it on some Aut. Purple Ash next week… keeping our fingers crossed on those, as they are headed to Utah!