Gordon Johnson, Retired Oleiculturist; gcjohn@udel.edu July heat waves often cause losses in vegetables. The following are some effects of high temperatures on vegetable crops. The plant temperature at which tissue dies is around 115°F. Normally, plant temperature is just above… Continue Reading
Emmalea Ernest, Scientist – Vegetable & Fruit Crops; emmalea@udel.edu Snap beans are sensitive to high night temperatures during flowering. Sixty-eight degrees Fahrenheit (68 °F) is considered the threshold temperature for damage to anthers and pollen, which leads to poor pod… Continue Reading
Gordon Johnson, Extension Vegetable & Fruit Specialist; gcjohn@udel.edu As the climate becomes hotter and wetter, loss of vegetable and fruit crops is expected to increase due to heat stress and damage from heavy rains. Several projects across the country are… Continue Reading
Jerry Brust, IPM Vegetable Specialist, University of Maryland, jbrust@umd.edu After visiting pumpkin fields over the last few weeks it seems that in some of the fields there could be a reduction in yields of around 15-30%. I reached this very… Continue Reading
Gordon Johnson, Extension Vegetable & Fruit Specialist; gcjohn@udel.edu With the recent hot temperatures and more predicted, there is high potential for sunburn in fruits and fruiting vegetables. Growers may need to consider ways to protect against sunburn. Sunburn is most… Continue Reading
