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heat stress

Potato Disorders

July 2, 2021kgyoung

Gordon Johnson, Extension Vegetable & Fruit Specialist; gcjohn@udel.edu   Potato harvest will begin soon on Delmarva. There are several physiological disorders affecting potatoes prior to harvest that can be problematic, reducing quality, and causing losses. Brown Center and Hollow Heart… Continue Reading →

Vegetable Crops 29:15, flooding, heat stress, physiological disorders, potato

Heat Damage in Vegetables Revisited

July 2, 2021kgyoung

Gordon Johnson, Extension Vegetable & Fruit Specialist; gcjohn@udel.edu The current heat wave is causing losses in vegetables and fruits. The following are some effects of high temperatures on vegetable and fruit crops. The plant temperature at which tissue dies is… Continue Reading →

Vegetable Crops 29:15, climate change, heat stress, lima bean, snap bean, sweet corn, tomato

When to Switch from Black to White Plastic Mulch

May 21, 2021kgyoung

Gordon Johnson, Extension Vegetable & Fruit Specialist; gcjohn@udel.edu High temperatures (90°F or higher) coupled with clear skies can lead to heat buildup on the surface of black plastic mulched soils. We have found temperatures of over 140°F at the surface… Continue Reading →

Vegetable Crops 29:9, broccoli, heat stress, lettuce, pepper, plasticulture, tomato

2018-2020 Corn Weather Summary

September 25, 2020Emmalea Garver Ernest

Jarrod O. Miller, Extension Agronomist, jarrod@udel.edu; Cory Whaley, Sussex Co. Extension Ag Agent, whaley@udel.edu; Jake Jones, Extension Agriculture Agent, Kent County, jgjones@udel.edu; Dan Severson, Agriculture Agent, New Castle County, severson@udel.edu Weather is always a limiting factor in crop production, and… Continue Reading →

Agronomic Crops 28:28, field corn, heat stress, weather

Delayed Fruit Set and Pumpkin Color Development in 2020

September 25, 2020Emmalea Garver Ernest

Gordon Johnson, Extension Vegetable & Fruit Specialist; gcjohn@udel.edu Some pumpkin fields have seen a delay in fruit set due to high temperatures in late June and July in 2020. When set is delayed until August, the question is will the… Continue Reading →

Vegetable Crops 28:28, farm markets, heat stress, pumpkin, vegetable marketing

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