Cucurbit Downy Mildew-Confirmed in WNC (Haywood County) August 14, 2020
Downy Mildew Management Sprays!
Henderson County has several acres in cucumbers, squash, zuchinni, and pumpkins, therefore growers are strongly encouraged to start scouting for downy mildew to ensure early detection.
See photos of leaf symptoms. Before the disease appears apply fungicides at 7-day interval for cucumbers and 10-day intervals for other cucurbits. For example, before disease detection you can use: Tanos + Bravo, alternated with Zampro + Bravo, alternated with Gavel every 7 to 10 days in rotation.
|Active ingredient||Example product||Pre-harvest Interval (day)||Fungicide group|
|Oxathiapiprolin||Orondis Opti A||0||49|
|Cyazofamid||Ranman 400 SC||0||21|
|Famoxadone + cymoxanil (Greenhouse)||Tanos 50WG||3||11+27|
|Ametoctradin + dimethomorph||Zampro||0||45+40|
|Mancozeb + zoxamide (Greenhouse, Before Disease)||Gavel 75WG||5||M+22|