Horticultural oil and neem oil are popular for orchard management. Horticultural oil, derived from petroleum distillates, suffocates pests and their eggs. Neem oil, from the neem tree, repels and controls pests with its active ingredient, azadirachtin. Both oils have broad-spectrum effects, targeting insects, mites, and certain diseases. Horticultural oil is commonly used as a dormant spray, while neem oil can be used throughout the growing season as a foliar spray or soil drench.