Archives for August 2013

August 8, 2013

Tomato Disease Forecasting Report 8-9-13

8-9-13 Tomato Report – Click to Download

Disease severity values (DSVs) for early blight, septoria leaf spot, and tomato anthracnose development are determined daily based on leaf wetness (due to rainfall, dew) and air temperature.

On a daily basis DSV values can range from 0 to 4 where 0 = no chance for disease development to 4 = high chance for disease development.
DSVs are accumulated during the production season.

Fungicide applications are based on an individually determined DSV threshold. The first fungicide application for the control of these three diseases is not warranted until 35 DSVs have accumulated from your transplanting date. After that, growers can base fungicide applications on different DSV thresholds.

Filed Under: Disease Forecasting
August 8, 2013

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)

 

Filed Under: Vegetable Crops Tagged With: ,
August 8, 2013

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…]

Filed Under: Vegetable Crops
August 7, 2013

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

Filed Under: Vegetable Crops
August 6, 2013

Fruit IPM Report: Week Ending 8/3/13

Fruit IPM Report 8-3-13 – Click to View | Download | Print

In this report:

  • Brown Marmorated Stink Bug
  • Peach
  • Apple
  • Grape
  • Scouting Calendar
  • Blueberry
  • Trap Counts
Filed Under: Blueberry, Fruit, Tree Fruit, Wine Grape
August 6, 2013

Cucurbit downy mildew confirmed on pumpkin in Morris County – 8/6/13

Cucurbit downy mildew has been reported on pumpkin in Morris County. This is the first report of downy mildew on pumpkin this growing season. Cucurbit downy mildew has also been showing up on cucurbit crops (other than cucumber) in other states this past week. All cucurbit crops in New Jersey are at risk for downy mildew. Downy mildew specific fungicides should now be a part of all weekly fungicide maintenance programs if not already initiated. For current 2013 Cucurbit Downy and Powdery Mildew Management Guidelines please see post from 6/7/13. If you suspect downy mildew on any cucurbit crop please contact your county agent. Please visit http://cdm.ipmpipe.org/ to track the progress of downy mildew throughout the US.

Filed Under: Vegetable Crops Tagged With: ,