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Agronomic Crops

Agronomic Insect Scouting

June 20, 2025lyndsie

David Owens, Extension Entomologist, owensd@udel.edu Alfalfa Potato leafhopper counts from this week were a good bit higher than two weeks ago. Scout short alfalfa now for leafhopper. In our management guide, there is a threshold table relating leafhopper count, size… Continue Reading →

Agronomic Crops 33:15, alfalfa, mites, potato leafhopper, soybean, stink bug

Resources for 2025 Corn and Soybean Fungicide Efficacy

June 13, 2025lyndsie

Alyssa K. Betts, Extension Field Crops Pathologist; akoehler@udel.edu Wet and humid conditions can favor foliar disease in corn and soybean. As growth progresses, scouting can help to assess the level of disease present and if a fungicide may help to… Continue Reading →

Agronomic Crops 33:14, corn fungicide efficacy, soybean fungicide efficacy

Scouting Soybeans for Soybean Cyst Nematode

June 13, 2025lyndsie

Alyssa K. Betts, Extension Field Crops Pathologist; akoehler@udel.edu With our sandy soils, Soybean Cyst Nematode (SCN) is widely prevalent across the region. Symptoms of SCN can look like production challenges including nutrient deficiency, soil compaction, drought stress, or other diseases.… Continue Reading →

Agronomic Crops 33:14, SCN, soybean cyst nematode

Agronomic Crop Insect Scouting

June 6, 2025lyndsie

David Owens, Extension Entomologist, owensd@udel.edu Soybean Its about time soybeans might receive a herbicide application. It is tempting to tank mix an insecticide with it, but after testing herbicide pyrethroid tank mixes on 9 field site years with large field-size,… Continue Reading →

Agronomic Crops 33:13, alfalfa, potato leafhopper, soybean

Pythium Root Rot in Corn

May 30, 2025raharris

Alyssa K. Betts, Extension Field Crops Pathologist; akoehler@udel.edu Pythium root rot (PRR) and damping off in corn is caused by species within the fungal-like oomycete Pythium. Wet conditions around the time of planting can favor PRR with symptoms that include… Continue Reading →

Agronomic Crops 33:12, pythium

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