Q.Saw Fly Infestation In Birch
The leaves are all falling and the caterpillars are now falling onto other plants. I believe that the foiliage is beyond saving this year. I want to prevent re infestation.

BushDoctor
Certified GKH Gardening Expert
Certified GKH Gardening Expert
Answered on July 6, 2022
This will take persistence, but can be done! This article will help you:
https://www.gardeningknowhow.com/plant-problems/pests/insects/sawfly-insect-control.htm
This collection of articles will offer information on the care of Birch trees:
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