Answer: Fungicides help treat diseases, not insects. Disease symptoms do not include holes eaten at the edges of the leaves. Rather, there were insects feeding on the leaves and if you identified the insects, you could have sprayed your trees with an insect-specific insecticide. Next time, be sure to carefully read the labels to make sure the product is safe to use on your pear and plum trees. The fungicide you used burned the leaves, either because of the amount you used or because the weather was too hot to apply the product. Only time will tell whether or not your trees will leaf out again this year. There's always a hope! Give them a chance to recover and while you're waiting, hose off the branches to get rid of the fungicide that may be on the stems and branches. I'll cross my fingers and hope for the best for your trees!
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