Hi-Yield 55% Malathion Insecticide Spray is not applied as soil drench application and is applied as a foliar spray application.
Per the product label when treating outdoor ornamentals, you will mix 1.5 teaspoons per gallon of water and spray thoroughly.
Hi-Yield 55% Malathion Insecticide Spray is labeled for treating aphids as a foliar application only to established ornamental shrubs/trees. It would not be applied as a soil drench and would not be effective in this application.