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Commercial Ag Updates
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Plant & Pest Advisory > Commercial Ag Updates and Farm Food Safety

Plant & Pest Advisory > Vegetable Crops

Contact Information

The points of contact between Rutgers Cooperative Extension Service and the grower & business communities are the NJ County Agricultural Agents. The agents are a tremendous source of information for both new and experienced growers. Visit your local county extension office.

Friday, July 8, 2011

Cucurbit downy mildew reported in PA.

Cucurbit downy mildew has been reported on cucumber in Wyoming Co., PA. Wyoming County is located near the northeast corner of the state. All cucurbit growers in NJ (and the region) should include downy mildew specific fungicides to their weekly fungicide programs.

Thursday, July 7, 2011

Pepper anthracnose has been reported in pepper in South Jersey. Pepper anthracnose is an extremely destructive disease if left uncontrolled. All developing fruit are susceptible. Daily scouting and preventative fungicide applications are needed, especially in fields with a history of the pathogen. For more information please see the 2011 Commercial Vegetable Production Guide. 

Downy mildew on cukes in Ohio

Downy Mildew Found in Ohio Cucumbers, July 6, 2011
Sally Miller, Melanie Lewis Ivey and Fulya Baysal-Gurel, The Ohio State University Dept of Plant Pathology


Downy mildew was confirmed on cucumber samples from Wayne and Ashland counties in Ohio on July 6. This follows closely on the July 5 report of downy mildew in cucumbers Chatham-Kent, Ontario, where initial symptoms were observed as early as June 30 (see http://cdm.ipmpipe.org). The spread of downy mildew in Ohio is dependent on the weather - bright sunny days are detrimental to spore survival and transport, while overcast days promote spore survival and rainfall results in spore deposition.

--Rick VanVranken              For Ohio's management recommendations...

Tuesday, July 5, 2011

2nd case of cucurbit downy mildew reported in cucumber in NJ.

Cucurbit downy mildew has been reported in cucumber near Bridgeton, NJ. This is the second case of cucurbit downy mildew reported in the state. All commercial cucurbit growers should include a downy mildew specific fungicide(s) in their weekly fungicide program. For more information on controlling cucurbit downy mildew please see the 2011 Commercial Vegetable Recommendations.

Homeowners who have cucurbits (pumpkin, squash, melon, cucumber, watermelon, gourd) in their garden and suspect cucurbit downy mildew (see photo from 6/24) should apply a fungicide that contains the active ingredient, chlorothalonil, on a weekly basis and as long as symptoms appear. Thorough coverage of the underside of leaves is critical for controlling downy mildew.

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