Diseases and insect pests that often attack fruit and nut trees, grapes, and brambles in spring and summer can be headed off during the winter. Dormant sprays—which kill overwintering pests and some diseases—are best applied when plants are in the dormant stage—after leaves have dropped in the fall and before leaf buds open in spring….
Horticultural Oils
Insecticides for Organically Grown Vegetables and Fruits
Insecticides are substances used to control insect pests. There are insecticides derived from plants, animals, and natural mineral sources, and there are pesticides derived from synthetically produced chemicals. Naturally derived pesticides are often accepted for use on or around organically grown vegetables and fruits. Synthetically produced insecticides are not used in natural or organic gardening…
