gerard donegan asked 12 years ago
i have a grapevine in my conservatory affected by mildew. during the dorment season what treatment should i apply and simularly during the growing season. a lot of references are made to Captan ?
1 Answers
Gerry Daly Staff answered 5 years ago
Powdery mildew on a grape vine can be controlled by spraying with a product that contains the active ingredient myclobutanil such as Doff Systemic Fungus Control.
Apply when the leaves have half-opened and when fully opened.
