Monterey 70% Neem Oil Organic Liquid Concentrate Insect Killer 1 ptA broad spectrum insecticide, miticide and fungicide that controls numerous diseases as well as insects and mites. Use on vegetables, fruit trees, ornamentals, etc. Neem is ideal for use in organic gardens. Kills eggs, larvae and adult insects Prevents and controls black spot on roses, anthracnose, rust and powdery mildew As a preventative, apply 70% Neem oil on a 7 to 14 day schedule until disease development is no longer present To control disease