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Agronomic Crops

Agronomic Insect Scouting

July 25, 2025raharris

David Owens, Extension Entomologist, owensd@udel.edu Soybean Defoliator populations appear to be quite low. In last week’s scouting video, we were in a field near green stink bug threshold, but the beans were at R2. This week, many fewer of those… Continue Reading →

Agronomic Crops 33:20, stink bug

A Few Comments on Palmer Amaranth

July 18, 2025raharris

Mark VanGessel, Extension Weed Specialist; mjv@udel.edu This time of year, Palmer amaranth plants that survived earlier weed control efforts—or emerged later in the season—are now pushing through the crop canopy. It’s critical to remove these plants before they flower and… Continue Reading →

Agronomic Crops 33:19

Doubled Cropped Soybeans

July 18, 2025raharris

Mark VanGessel, Extension Weed Specialist; mjv@udel.edu Most double-cropped fields are now planted, and soybeans have begun to emerge. As we shift into mid-summer, it’s important to adjust our postemergence weed control strategy. Unlike spring, weed emergence is much lower this… Continue Reading →

Agronomic Crops 33:19

Agronomic Insect Scouting

July 18, 2025raharris

Alfalfa Scout any alfalfa less than 12 inches tall for potato leafhopper. It is more active this year than last year. Soybean Ben and I produced a short video scouting R2 soybean at the research station. It is now posted… Continue Reading →

Agronomic Crops 33:19

Root Knot Nematode in Field Crops and Vegetables

July 18, 2025raharris

Alyssa K. Betts, Extension Field Crops Pathologist; akoehler@udel.edu Last week in the soybean disease updates I briefly introduced root-knot nematodes (RKN) which are plant pathogenic roundworms that live in the soil and feed on plant roots. Nematodes are favored by… Continue Reading →

Agronomic Crops 33:19, root knot nematode

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