Daniel from Gilmer, Tx writes
I'm spraying grapes for downy mildew and powdery mildew, it would be nice to tank mix and spray once. Is this compatible with neem oil?
We would recommend that you spray Monterey Garden Phos Systemic Fungicide and neem oil separately in rotation (probably every 2 weeks) for best results. If you plan to mix the products, then we would test on a few plants first for tolerance since oils can cause extra sensitivity on plants if mixed with other products.
Answer last updated on: 10/18/2019