- Cucurbit downy mildew has been confirmed on cucumber in southern NJ this week. This is the first report in the state this growing season. All cucumber growers should scout their fields on a regular basis and consider adding a downy mildew specific fungicide to their weekly maintenance sprays.
- The 2018 FRAC Table for Cucurbit Downy and Powdery Mildew Control in the mid-Atlantic Region can be found and downloaded for FREE here.
- There have been no new reports of late blight in the region.
- Basil downy mildew has been reported in retail pots and in fields in southern New Jersey.
- Bacterial leaf spot and Phytophthora blight have been confirmed in pepper.
- Cercospora leaf spot was found on fenugreek this past week.
- The extremely hot, dry weather this past week should help mitigate diseases such as downy mildew. Remember, copper applications when temperatures and relative humidity are above 90 may cause phytotoxicity in some crops.
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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July 3, 2018 Andy Wyenandt
Vegetable Disease Update – 7/3/18
July 2, 2018 Andy Wyenandt
Cucurbit Downy Mildew ALERT – 7/2/18
Cucurbit downy mildew was confirmed on cucumber near Pedricktown in Salem County, New Jersey on 7/2/18. This is the first report of CDM in New Jersey this growing season. All cucumber growers are encouraged to add downy mildew specific fungicides to their weekly maintenance spray programs. All growers should scout cucumber plantings as well as all other cucurbit crops for symptoms. To track the progress of cucurbit downy mildew in the US through the CDMpipe website through NCSU please click here.
June 27, 2018 Kris Holmstrom and Joe Ingerson-Mahar
IPM Update 6/27/18
Sweet Corn
European corn borer (ECB) moth catches in black light traps remain very low. There will be no map in this edition due to insufficient catch. Incidents of feeding are declining as infested plantings proceed to silk and whorl stage corn has not been exposed to egg laying. We should be in a period relatively free of whorl infestations now. The next whorl infesting pest will be fall armyworm (FAW). As yet, no infestation of this pest have been detected. [Read more…]
June 21, 2018 Kris Holmstrom and Joe Ingerson-Mahar
IPM Update 6/20/18
Sweet Corn
European corn borer (ECB) moth catches in black light traps are very low. The highest activity now in north central areas (see ECB map). Feeding continues to increase, although infestations are spotty. [Read more…]
June 15, 2018 Andy Wyenandt
Cucurbit Downy Mildew ALERT – 6/22/18
Cucurbit downy mildew was confirmed on cucumber in Dorchester County, Maryland on 6/21/18. This is the first report of CDM in the mid-Atlantic region this growing season. All cucumber growers are encouraged to add downy mildew specific fungicides to their weekly maintenance spray programs. All growers should scout cucumber plantings as well as all other cucurbit crops for symptoms. To track the progress of cucurbit downy mildew in the US through the CDMpipe website through NCSU please click here.
June 14, 2018 Andy Wyenandt
Vegetable Disease Update – 6/14/18
- Dickeya dianthicola has been confirmed on ‘Norwis’ potato in New Jersey from seed originating from Prince Edward Island. This is the first report of Dickeya on potato in NJ this growing season. All potato growers should continue to scout their fields on a regular basis. Please contact your county agent if you find suspect plants.
- Pectobacterium spp. has been confirmed in southern NJ in ‘Dark Red Norland’ potato originating from P.E.I and in ‘Atlantic’ originating from Maine.
- Late blight was reported on tomato being sold as transplants in a retail operation last week near northeast Philadelphia. There has been no new information to date. Growers of tomato and potato should continue with their regular fungicide maintenance programs.
- Basil downy mildew was reported in potted basil being sold at a retail location in southern New Jersey.
- Bacterial leaf spot has been confirmed in pepper.
