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29:20

Field Crops Disease Updates

August 6, 2021cmanneri

Alyssa Koehler, Extension Field Crops Pathologist; akoehler@udel.edu Field Corn Grey leaf spot (GLS) has remained the primary disease showing up in corn. If GLS lesions are becoming widespread in corn that is already past R3, yield potential should not be… Continue Reading →

Agronomic Crops 29:20, field corn, field corn diseases, soybean, soybean downy mildew

Agronomic Crop Insect Scouting

August 6, 2021cmanneri

David Owens, Extension Entomologist, owensd@udel.edu Sorghum Begin scouting this week for sugarcane aphid and corn earworm. So far we have not yet detected white sugarcane aphids from the 5 fields we have been looking at. There are two other aphid… Continue Reading →

Agronomic Crops 29:20, agronomic crop insect scouting

Tissue Testing in Fruits

August 6, 2021cmanneri

Gordon Johnson, Extension Vegetable & Fruit Specialist; gcjohn@udel.edu Early August is the time to collect leaf samples for nutrient analysis in tree fruits, grapes, and blueberries. As shoots grow and leaves age, nutrient concentrations change. Mid-summer is the standard time… Continue Reading →

Fruit Crops 29:20, nutrient management, tissue testing

Rain Check Common in Tomato Fields This Season

August 6, 2021cmanneri

Jerry Brust, IPM Vegetable Specialist, University of Maryland; jbrust@umd.edu Over the last few weeks in almost all of the tomato fields I’ve been in have rain check on the tomato fruit (Fig. 1). Rain check is the many, tiny concentric… Continue Reading →

Vegetable Crops 29:20, physiological disorders, tomato

Thrips Damage to Some Vegetable Fields Severe This Growing Season

August 6, 2021cmanneri

Jerry Brust, IPM Vegetable Specialist, University of Maryland; jbrust@umd.edu Over the past few weeks I have gotten reports of and have seen vegetable (mostly tomato, but also pepper crucifers, cucurbits and small fruit) fields throughout the Mid-Atlantic having problems with… Continue Reading →

Vegetable Crops 29:20, pepper, thrips, tomato

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