Q.pecan tree full of sawflies
I have one big pecan tree that I think is full of sawflies. How do I get rid of them?
This article has information you are looking for: https://www.gardeningknowhow.com/plant-problems/pests/insects/sawfly-insect-control.htm
Also, you should probably identify the problem for sure before you attempt to treat for it. If you can capture some of the insects or their "caterpillars," take them to a nearby Extension Service for help; This link will help you locate the closest one: https://www.gardeningknowhow.com/extension-search/