Fred from Gilbertville writes
treating walnut hull maggots on black walnuts.
Safari 20SG is only labeled for non-bearing nut trees and does not have labeling for walnut maggots. For other bark applications, the amount of product you need will depend on the size of the tree. Page 14 of the product label has instructions on this application. We would suggest contact your local Cooperative Extension office for assistance with this pest.
Answer last updated on: 05/05/2016