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Robert from Hesperia writes

What is the recommended way to apply Onslaught Insecticide to a tree?

Weeping willow to fight flat headed borer

Answer:

Onslaught Insecticide would be applied as a full coverage foliar spray applying to the point of drip but not run off as directed on the product label for the listed borers only.  Bayer Advanced 12 Month Tree & Shrub Insect Control Landscape Formula can be applied to any non-edible trees for soft and flat headed borers and would be a better option for it’s systemic properties before the insects become an issue.

Answer last updated on: 11/13/2018

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