Beverly from La Mesa writes
I applied a mixture during dormant mostly
Dominion 2L is not a fungicide and would not treat any tree for black sooty mold. Dominion is often used as soil drench application to the base/root zone of trees to help with insects that do damage to the plant throughout the season such as whiteflies, aphids, borers, etc. Make sure you have correctly identified the issue on your crape myrtles as either disease or insect as the treatments would be very different for each. If its insects that are causing the sooty spots on the leaves, you would only need to do a single application of Dominion 2L to the roots of the plant per year. It does need to be applied when the trees are acively growing to absorb the product effectively.
Answer last updated on: 05/07/2021