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Vegetable Crops

Vegetable Crop Insect Scouting

May 16, 2025raharris

David Owens, Extension Entomologist, owensd@udel.edu Cucurbits Striped cucumber beetles continue to roll into fields. We are beginning another pyrethroid resistance monitoring effort this year and need beetles from all over Delmarva. If you have a location in which the entomology… Continue Reading →

Vegetable Crops 33:10, diamondback moth, seedcorn maggot, striped cucumber beetle

Warm Temperatures are Moving Crops Along  

May 16, 2025raharris

Emmalea Ernest, Extension Fruit & Vegetable Specialist; emmalea@udel.edu Since mid-March of this year, temperatures have been warmer than typical and in the last 30 days temperatures in much of Delaware have been 4 to 6°F above average (Fig. 1). This… Continue Reading →

Vegetable Crops 33:10, cole crops, lettuce, peas

The Impacts of Early Postemergence Herbicide on Snap Bean

May 9, 2025raharris

Lynn Sosnoskie, Cornell Univ.; Dwight Lingenfelter, Penn State; and Mark VanGessel, Extension Weed Specialist; mjv@udel.edu Postemergence herbicides work best on small plants (less than 3 inches tall); at the same tie crop stage is important to avoid harming the snap… Continue Reading →

Vegetable Crops 33:9, snap bean

Vegetable Crop Insect Scouting

May 9, 2025raharris

David Owens, Extension Entomologist, owensd@udel.edu Cucurbits Scout for striped cucumber beetle on any planted cucurbit – cantaloupe, cucumber, watermelon, and summer squash. They have been spotted in watermelon planted last week and in high tunnel cucumbers. Of those, watermelon is… Continue Reading →

Vegetable Crops 33:9, asparagus beetle, Colorado Potato beetle, diamond back moth, striped cucumber beetle

Yield Effect of Reduced Stands in Sweet Corn

May 8, 2025raharris

Emmalea Ernest, Extension Fruit & Vegetable Specialist; emmalea@udel.edu As early planted sweet corn fields emerge, some with better stands than others, questions arise about what effect poor stands will have on ultimate yield. Yield reduction due to stand loss will… Continue Reading →

Vegetable Crops 33:9, sweet corn

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