by Mark VanGessel, Extension Weed Specialist; mjv@udel.edu A number of corn herbicides have label precautions about use of an organo-phosphate insecticide at planting due to potential crop injury. This includes the insecticides Counter (terbufos), Lorsban (chlorpyrifos), and Fortress (chlorethoxyfos). The herbicides include both soil-applied and postemergence herbicides. Some of the common products include Callisto (Halex GT); […]
Continue reading...May 17, 2013 Mark VanGessel
Burndown for No-Till Soybeans at this Time
by Mark VanGessel, Extension Weed Specialist; mjv@udel.edu If no-till soybean fields have not been sprayed yet, we are facing an uphill battle. Most of the horseweed (or maretail) is now well over 6” tall, and so are a lot of the other winter annual weeds.
Continue reading...May 17, 2013 Andy Wyenandt
Vegetable Disease Update – 5/17/13
This past week there were a few reported cases of bacteria causing problems in tomato transplants, along with an isolated case of pith necrosis from the field as well as bacteria causing issues in strawberry. There have been no reports of late blight or cucurbit downy mildew in the region to date.
Continue reading...May 17, 2013 A.Wyenandt, W.Kline, and J.Ingerson-Mahar
Tomato Disease Forecasting Report 5-17-13
5-17-13 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 […]
Continue reading...May 17, 2013 A.Wyenandt, W.Kline, and J.Ingerson-Mahar
Potato Disease Forecasting Report 5-17-13
Potato Disease Forecasting Report 5-17-13 – Click to Download Welcome to the new potato report for 2013! As always, we will be tracking DSVs for Late blight development and calculating P-days for initiating the first early blight fungicide application. Remember the threshold for P-days is 300! Once 300 P-days is reached for your location early […]
Continue reading...May 15, 2013 Administrator
Cranberry Growers Twilight Meeting
Date: Wednesday, June 5, 2013 Location: Pine Island Cranberry Meeting Agenda 5:30: Dinner 6:30-7:00: Peter Oudemans, Troubleshooting Cranberry Disease Problems 7:00-7:30: Cesar Rodrigues-Saona, Identifying and Controlling Cranberry Insects 7:30-8:00: Pat Hastings, Safety Precautions in Cranberry Pest Control 8:30-9:00: Dave Frank, Current Status of Local Bee Populations & Controlling Bee Diseases 9:00-9:30: Ray Samulis, Farm Safety […]
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