chong

Yes, spray it at all surfaces of the plant plus the surface of the soil, twice a week. The one I used was already in a sprayer, so it was pretty easy to use, no mixing, but it was thick. If you have something that needs mixing and the mixture is thick, use a paint brush to apply. If the mixture is light, use a sray bottle. If it were me, I'd use a paint brush. This way, the solution will be applied directly at the intended target. With a sprayer, there is a tendency for overspray drift around the target.