- Cucurbit downy mildew has been confirmed on cucumber, butternut squash, and pumpkin in NJ this growing season. Recent weather has been ideal for its development. All cucurbit growers should scout their fields on a regular basis and consider adding a downy mildew specific fungicide to their weekly maintenance sprays.
- CDM has been reported in giant pumpkin and cantaloupe in MD this past week, and in acorn, summer squash, watermelon and butternut squash as far north as North Carolina to date.
- Cucurbit powdery mildew is being reported.
- The 2018 FRAC Table for Cucurbit Downy and Powdery Mildew Control in the mid-Atlantic Region can be found and downloaded for FREE here and is essential for developing control strategies for both diseases.
- There have been no new reports of late blight in the region.
- Basil downy mildew is being reported. Recent weather has been ideal for its development. For more information on Rutgers newly-released DMR sweet basils Obsession, Devotion, and Thunderstruck please click here. Follow the Rutgers Basil Downy Mildew Breeding Program on Instagram at #RutgersBasil
- Bacterial leaf spot and Phytophthora blight have been reported in pepper and cucurbit crops.
- Remember, copper applications on hot days with high relative humidity can cause phytotoxicity on a number of crops.
- Cercospora leaf spot has been reported on swiss chard and beets.
August 13, 2018 Andy Wyenandt