Remove affected leaves if you can
Neem Oil
BT Spray – If caused by moth / caterpillars
Beneficial Insect Predators (Diglyphus isaea)
Floating row covers
NOTE: Avoid using nervous system insecticides, such as malathion, Dursban (chlorpyrifos), and Orthene (acephate). They are labeled for use on many shade trees and ornamental plants for aphid control, but are not safe to use on cannabis. If something isn’t safe to be used on edible plants, then chances are it’s not safe to use on cannabis.