Alyssa Koehler, Extension Field Crops Pathologist; akoehler@udel.edu A few weeks ago, we discussed Pythium in field corn, but it can also cause problems in sweet corn, snap beans, and a number of other crops. Wet spring conditions and low or… Continue Reading
Gordon Johnson, Extension Vegetable & Fruit Specialist; gcjohn@udel.edu and Emmalea Ernest, Associate Scientist – Vegetable Crops; emmalea@udel.edu Vegetable harvest is peaking on Delmarva. Unfortunately, we often see pollination problems in fruiting vegetables when weather conditions are unfavorable and 2020 is… Continue Reading
David Owens, Extension Entomologist, owensd@udel.edu Congratulations to Bob Leiby for correctly identifying the yellowing on the snap bean leaf as hopperburn caused by potato leafhopper. Adults are very active and fly from the foliage at the least disturbance. Small nymphs… Continue Reading
Emmalea Ernest, Associate Scientist – Vegetable Crops; emmalea@udel.edu Snap and lima beans that were planted in early June are approaching the flowering stage. Early June plantings frequently experience the most heat stress, since they flower in mid-July, which is often… Continue Reading
Gordon Johnson, Extension Vegetable & Fruit Specialist; gcjohn@udel.edu and Emmalea Ernest, Associate Scientist, Vegetable Crops emmalea@udel.edu Heavy rains after planting, cold temperatures, wind damage, and sandblasting have caused stand reductions in some sweet corn plantings. When stands are reduced, vegetable… Continue Reading
