Jack from Check writes
How soon after the trees are treated could I expect to see the adelgids begin to die?
Criterion 75 WSP Systemic Insecticide can be used once a year as a soil drench to treat trees for wooly adelgid. How quickly this product starts to work depends on how quickly it is translocated through the trees. This could be a few days on very small trees, or it may be several weeks on larger trees. For this reason, we recommend pairing your systemic insecticide with a topical spray for faster results, such as Bifen IT.
Answer last updated on: 06/03/2019