gardener sprinkle diatomaceous earth kieselgur powder for non-toxic organic insect repellent on salad in vegetable garden.

activity agriculture ants concept control cultivation dehydrating diatomaceous diatomite dusting earth eco environment farm food fresh friendly garden gardener gardening grade growing hand herb insecticide insects kieselgur leaf lettuce mineral mites natural organic outdoors person pest pesticide plant pouring powder protection repellent salads slug spreading sprinkle toxic vegetable