Corn Herbicides and Soil Insecticide Interactions

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); […]

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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.

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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.

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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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Blueberry IPM for 5-15-13

Aphids

From the Blueberry Bulletin Cesar Rodriguez-Saona, Extension Specialist in Blueberry Entomology Dean Polk, IPM Agent – Fruit Gene Rizio, IPM Program Associate – Fruit Aphids: About 32% of shoot samples are positive for aphid infestation. As was the case last week, these are single aphids. They have not started to multiply into colonies. At this […]

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Veg IPM Update: Week Ending 5/15/13

Diamondback Moth Larvae

Sweet Corn Cole Crops Brown Marmorated Stink Bug

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