Asparagus growers should consider scouting their fields for foliar disease development. Important pathogens growers need to scout for on a regular basis are Purple spot, Cercospora, and Rust. [Read more…]
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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Veg IPM Update: Week Ending 8/28/13
Vegetable IPM Report 8-21-13 – 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
Pepper Weevil Resurgence
In the past two weeks there has been an increase in the number and locations of pepper weevils caught in traps. From the end of June to the first part of August all of the weevils caught were in Woolwich Township on both non-farm and farm traps.
The locations where weevils have been caught or found since August 8 now include Woolwich Township, Logan Township, Cherry Hill Township, Vineland, East Vineland, and Cedarville. No weevils have been caught recently in the Hammonton area. This pattern of spread is similar to 2012 when there were no trap captures of weevils in June and July, but suddenly in mid-August seemed to be everywhere.
Infested fields now range from garden-sized pepper plots to full-size commercial fields. The spike in numbers caught at one field, this year, coincides with the arrival of off-farm produce bins. Given the locations of non-farm traps, it’s apparent that we do have multiple introductions of pepper weevil through the growing season.
Concerns about pepper weevil have been negated by too much rainfall and resulting disease problems this year. However, if no preventive action is taken in newly infested fields there will be economic loss even at this time of year. Farmers must figure out the cost of control versus the revenue likely from late season peppers. Although several insecticides will kill adults, weekly rotations of Actara and Vydate seems to perform the best.
For specific numbers and locations where weevils have been caught in the past two weeks, refer to this week’s Vegetable IPM Update.
Veg IPM Update: Week Ending 8/21/13
Vegetable IPM Report 8-21-13 – 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
Vegetable Disease of the Week – 8/16/13

White speck on vine and stem of infected pumpkin plant. Note the numerous small, white diamond shaped lesions.

White speck lesions covering the surface of immature and mature pumpkin fruit. White speck will only cause cosmetic injury to fruit.
Vegetable Disease Update 8/16/13
No Late blight has been reported in New Jersey this week.
Cucurbit downy mildew remains active.
White speck (or Plectosporium blight) has been reported in pumpkin. [Read more…]