David from Nc writes
Martins Dominion Tree and Shrub will treat for the whiteflies, as well as other sucking insects like aphids that cause the black sooty mold. Since it is a systemic and must be translocated up the tree, it can take a bit of time to take effect. During that time, we recommend a foliar spray like Talstar P to help with quicker knock down until the systemic product has had time to work.
Answer last updated on: 11/01/2019