Aspirin, compost tea and hen's blood?The only pest resistant plants that I know of are healthy disease free plants, other than GMO's that is. Being an organic gardener I seldom see a harmful insect except for grasshoppers. Caterpillars can be a problem but are easily eliminated with Bt. As for drugs if you mean chemical insecticides, they and any other chemical herbicide or fertilizers are not allowed on my property. I don't even allow glass beer bottles. As far as plant diseases go, a healthy fertile soil means a disease free plant. I do get early blight every year but I can control it long enough to make a crop
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