Emmalea Ernest, Extension Fruit & Vegetable Specialist; emmalea@udel.edu Lima bean downy mildew is caused by Phytophthora phaseoli. Other Phytophthora species cause devastating disease in vegetable crops such as P. infestans, which causes late blight in potato and tomato and P.… Continue Reading
Kevin Brinson, Associate State Climatologist and DEOS Director; kbrinson@udel.edu It’s getting wet again; time to keep an eye on downy mildew in lima beans. The theme for July’s weather was feast or famine. What started off looking like it would… Continue Reading
Gordon Johnson, Extension Vegetable & Fruit Specialist; gcjohn@udel.edu Lima bean harvest is about one third completed on Delmarva. Early planted yields have been variable, as is often the case. Dryland lima fields have been yielding similar to irrigated fields and… Continue Reading
Gordon Johnson, Extension Vegetable & Fruit Specialist; gcjohn@udel.edu The following was modified from a 2011 article from Bob Mulrooney, Extension Plant Pathologist (now retired), University of Delaware As we move into late August and September, cooler temperatures, heavy dews and… Continue Reading
Bob Mulrooney, Extension Plant Pathologist; bobmul@udel.edu Lima Bean Downy Mildew Downy mildew is present now in Delaware lima bean fields. Levels are not high but many have been sprayed to protect the crop. Keep scouting and apply fungicides when needed;… Continue Reading
