Cucurbit downy mildew has been reported on pumpkin in Morris County. This is the first report of downy mildew on pumpkin this growing season. Cucurbit downy mildew has also been showing up on cucurbit crops (other than cucumber) in other states this past week. All cucurbit crops in New Jersey are at risk for downy mildew. Downy mildew specific fungicides should now be a part of all weekly fungicide maintenance programs if not already initiated. For current 2013 Cucurbit Downy and Powdery Mildew Management Guidelines please see post from 6/7/13. If you suspect downy mildew on any cucurbit crop please contact your county agent. Please visit http://cdm.ipmpipe.org/ to track the progress of downy mildew throughout the US.
Vegetable Crops Edition
Seasonal updates and alerts on insects, diseases, and weeds impacting vegetable crops. New Jersey Commercial Vegetable Production Recommendations updates between annual publication issues are included.
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August 2, 2013 Andy Wyenandt
Controlling fungal leaf blights of Carrot
Powdery mildew, Alternaria and Cercospora are three important fungal foliar pathogens that can cause early defoliation in carrots, thus reducing yields and making harvest difficult. Each pathogen produces distinct symptoms. [Read more…]
August 2, 2013 Andy Wyenandt
Vegetable Disease Briefs – 8/2/13
Although conditions have been favorable, No Late blight has been reported in New Jersey this past week.
Basil
Downy mildew remains active – All basil growers should scout on a daily basis and should add a labeled downy mildew specific fungicide to their weekly fungicide program. Phosphite fungicides (FRAC code 33), such as Prophyt, K-Phite, and Rampart have shown the best efficacy in trials at RAREC. Actinovate (OMRI- approved) is also labeled for downy mildew control. Please remember, all abandoned basil fields should be worked under immediately after last harvest to kill the foliage! Abandoned fields left unattended after use will only serve as a source of inoculum for other fields. [Read more…]
July 31, 2013 Kris Holmstrom and Joe Ingerson-Mahar
Veg IPM Update: Week Ending 7/31/13
Vegetable IPM Report 7-31-13 – Click to View | Download | Print
Current Week’s Pest Maps – Available Maps for the week are highlighted
- European Corn Borer Map
- Corn Earworm Blacklight Map
- Corn Earworm Pheromone Map
- Brown Marmorated Stinkbug Map
- Vegetable IPM Pest Map Archive
July 28, 2013 Wes Kline
RAREC Vegetable Twilight and Research Tour
For Commercial Vegetable Growers
Date: Tuesday, August 20, at 5:30 pm
Location: RAREC
121 Northville Road, Bridgeton, NJ (Upper Deerfield)
- Investigator Presentations and Research Plot Tours
- Bring your plant insect, disease, or weed samples for identification
- Pesticide recertification credits
July 24, 2013 Kris Holmstrom and Joe Ingerson-Mahar
Veg IPM Update: Week Ending 7/24/13
Vegetable IPM Report 7-24-13 – Click to View | Download | Print
Current Week’s Pest Maps – Available Maps for the week are highlighted
