From Dr. Bhabesh Dutta:
Downy mildew has been detected on cucumber in Colquitt County. These observations indicate that inoculum of downy mildew is currently in southern GA counties and under favorable conditions potential disease outbreak in cucurbit crops can occur. I would suggest our cucurbit growers to look for the downy mildew symptoms in their fields and start applying protective spray of below stated fungicides.
Watermelon: Rotation (foliar application):
Orondis ultra or Orondis opti; Elumin+Bravo/Manzate; Ranman+Bravo/Manzate; Previcur flex+Bravo/Manzate
Please do not use Orondis Opti or Bravo after fruit set.
Other cucurbits:
Orondis opti; Elumin+Bravo; Ranman+Bravo; Previcur flex+Bravo
If Orondis was used as a soil application, please do not use it as foliar (use restriction according to the product label).