Archives for July 2012

July 31, 2012

Tomato Disease Forecasting Report 7-31-12

Tomato Report 7-31-12 – 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.

[Read more…]

Filed Under: Vegetable Crops
July 27, 2012

Daconil Action Fungicide

By Bruce Clarke

Have received several questions from golf course superintendents over the last few days about potential phytotoxicity from the use of Daconil Action (cholorthalonil + acibenzolar) on golf course greens and fairways.  I have worked with Daconil Action for 7-8 years and have not seen any “unique” phytotoxicity associated with that…

Source: Read More on the Rutgers Turf Blog

Filed Under: Turf
July 27, 2012

Bacterial Decline of Creeping Bentgrass

By Bruce Clarke

Several golf courses in the tri-state area have reported symptoms of etiolation and decline of creeping bentgrass putting greens.   In some cases, the etiolation has occurred in isolated areas and then disappeared, but in other situations etiolation has progressed into a gradual decline of affected turf.  Patches can range from…

Source: Read More on the Rutgers Turf Blog

Filed Under: Turf
July 23, 2012

Crabgrass Continues to Emerge

By Jim Murphy

Recent rains have stimulated more crabgrass to emerge. This will probably continue through the end of the month. If applied preemergence herbicides, especially early in the spring, you may start to see “breakthrough”. If have decided to control crabgrass postemergence (manually or with postemergence herbicides), you should scout for emerging plants after…

Source: Read More on the Rutgers Turf Blog

Filed Under: Turf
July 17, 2012

Small Fruit IPM Report July 17, 2012

-Dean Polk, Fruit IPM Agent and
David Schmitt, Eugene Rizio and Atanas Atanassov,
Program Associates, Tree Fruit IPM

Filed Under: Blueberry, Wine Grape
July 13, 2012

NJ IR-4 A Call for Project Submissions

The IR-4 Project is “a cooperative program of the USDA and the SAES, with the principle goal of developing data to support and to expedite regulatory clearances of newer, reduced risk pest control products for specialty crop growers.” More information on the IR-4 Project can be found at http://ir4.rutgers.edu. As the IR-4 liaison for the state of New Jersey, my main responsibility is to represent the pesticide needs of minor crops in New Jersey at the IR-4 Food Use Workshop meeting.

This year, the IR-4 Food Use Workshop will take place on Tues.-Wed., Sept. 11-12, at the St. Louis Union Station Marriott, downtown St. Louis, MO. New projects must be submitted no later than August 15. [Read more…]

Filed Under: Tree Fruit, Vegetable Crops