Hi folks, newbie here. Looked for this but couldn't find it elsewhere. When I was young, I remember my Father using powdered lime to dust garden vegetable plants for the purpose of discouraging insects from eating the plant leaves. He has been gone now for several years so I can't ask him. Can this be done? If so, which form of lime should be used? I know others that dust with sevin dust, and I don't like the idea of using insecticides on something that will be eaten.