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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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…]

Vegetable IPM Update: Week Ending 8/14/13

Note: A complete update will not be issued today.

Sweet Corn

Corn earworm (CEW) adult catches are rising throughout most of the state now. Only the northernmost counties still have few individual moth captures. Elsewhere, growers should be shortening their silk spray schedules to three days even if specific sites have abnormally low catches. Northern growers should prepare for the population to increase in their area very soon.
Generally, spray schedules should be as follows:
North: – 4 days
Central: – 3 days
South: – 3 days

Vegetable Diseases of the Week – 8/9/13

Phytophthora fruit rot of butternut squash

 

 

 

 

 

 

 

Leaf spots on an infected eggplant leaf caused by Phomopsis. (Note the black fruiting bodies in the center of the spots)

 

Vegetable Disease Update – 8/9/13

No Late blight has been reported in New Jersey this week.
Cucurbit downy mildew has been found on pumpkin in northern New Jersey.
Phytophthora blight remains active in many crops. The good news is that next week should bring some dry weather.
An early indication from our pepper bacterial leaf spot differential trial is that Race 6 is present in southern New Jersey. We’ll have more information later this fall.
Phomopsis leaf spot has been found on Italian eggplant. [Read more…]

Veg IPM Update: Week Ending 8/07/13

Vegetable IPM Report 8-07-13 – Click to View | Download | Print

Current Week’s Pest Maps – Available Maps for the week are highlighted