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 26, 2014

Plastic Pesticide Container Recycling Earns Pesticide Core Credit

The NJ Dept. of Ag, Helena Chemical, and the Cumberland County Solid Waste Complex are offering a series dates for free plastic pesticide container recycling disposal. These are offered to agricultural, professional and commercial applicators holding a NJDEP Pesticide Applicators License. State, county and municipal government agencies may also participate. Spread the word and recruit participants for this free service – we are hoping to exceed last year’s collections.

The NJ Dept. of Ag will be on-site to inspect the containers and issue one Core Credit to license holders who follow the processing guidelines. To receive Credit, participants must bring their Pesticide License and prepare the containers. Core credits will not be issued to participants who do not prepare containers. Dates and locations are listed below.
[Read more…]

Filed Under: Blueberry, Commercial Ag Updates, Cranberry, Landscape, Nursery, & Turf, Tree Fruit, Vegetable Crops, Wine Grape
July 23, 2014

Veg IPM Update: Week Ending 7/23/14

Vegetable IPM Report 7-23-14 – Click to View | Download | Print

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Maps for the Week
–European Corn Borer Map
–Corn Earworm Moth Blacklight Trap Map
–Corn Earworm Moth Pheromone Trap Map

Topics for the Week

  • Sweet Corn
  • Peppers
  • Tomatoes
  • BMSB
  • Pumpkins and Winter Squash
  • Basil

[Read more…]

Filed Under: Vegetable Crops
July 23, 2014

Late Blight on Tomato in Virginia

Late blight was reported on tomato in Leesburg, Virginia on 7/21. Leesburg is Northwest of Washington, DC. There have been scattered reports of late blight in the region this summer.

This is a good reminder for all tomato and potato growers in New Jersey and surrounding region to scout on a regular basis. No late blight has been reported in New Jersey to date. For more information on late blight and to track its progress in the US please visit USAblight.

Filed Under: Vegetable Crops Tagged With:
July 22, 2014

Cucurbit Downy Mildew Confirmed in Southern NJ – 7/22/14

Cucurbit downy mildew was confirmed in a 10 acre cucumber field near Rosenhayn in southern New Jersey today.

This is the first report of cucurbit downy mildew in New Jersey this growing season. All commercial cucurbit growers in the state and region should scout their fields on a regular basis. Growers who have not already included downy mildew specific fungicides into their weekly fungicide programs should do so immediately.

Symptoms of cucurbit downy mildew on infected cucumber leaf.

Symptoms of cucurbit downy mildew
on cucumber leaf.

If left uncontrolled, cucurbit downy mildew will cause significant losses. For more information on controlling cucurbit downy mildew please see the 2014 Commercial Fungicide Recommendations Guide.

Organic growers can apply copper and other OMRI-labeled products at labeled rates to help suppress downy mildew development under light disease pressure.

Filed Under: Vegetable Crops Tagged With:
July 19, 2014

Vegetable Diseases of the Week

Southern Blight on Tomato

Note the small, spherical fruiting bodies (sclerotia) developing on the surface of the stem. The sclerotia can survive in the soil for many years without a host.

Southern blight on infected tomato stem. Note the small, spherical fruiting bodies developing on the surface of the stem

Southern blight on infected tomato stem.

White Mold on Cabbage

White mold on cabbage producing large, black fruiting bodies (sclerotia). The sclerotia can survive in the soil for many years without a host present.

White mold on cabbage producing large, black fruiting bodies (sclerotia). The sclerotia can survive without a host for many years in the soil.

White Mold on Cabbage

Filed Under: Vegetable Crops Tagged With: , ,
July 19, 2014

Vegetable Briefs – 7/19/14

Basil downy mildew

Basil Downy Mildew remains active in New Jersey. All basil growers should scout on a daily basis and taking appropriate preventative measures.

Cucurbit downy mildew

Cucurbit Downy Mildew has been reported as far north as northern Maryland and in central Michigan to-date. With the latest weather this past week, all cucurbit growers should scout on a regular basis and adjust fungicide programs accordingly and begin to apply downy mildew specific fungicides if not already done so. Organic growers should apply copper or other OMRI-approved products to help prevent and suppress downy mildew development. If you suspect CDM on your farm please contact your count agent so we can confirm and report it. To track downy mildew in the US please visit NCSU’s Downy Mildew Forecasting Website.

Cucurbit growers should scout on a regular basis and adjust fungicide programs to incorporate powdery mildew specific fungicides into their weekly fungicide programs.

Peppers and Tomatoes

Bacterial leaf spot has been reported on both crops. Heavy wind and rains have been experienced throughout the state. Remember that all bacteria need a natural opening (i.e., stomata) or a wound (i.e., from typing or pruning) to enter a plant to start an infection.
[Read more…]

Filed Under: Vegetable Crops