sunflower | Weekly Crop Update

Sunflower and Dectes Stem Borer

June 26, 2020ahoggard

David Owens, Extension Entomologist, owensd@udel.edu I am looking for dove hunting plots that partially border full season soybean. Dectes stem borer is a potential pest of soybean that is highly attracted to sunflower, so much so that several entomologists believe… Continue Reading →

Septoria Leafspot on Sunflower

July 23, 2010cmanneri

Bob Mulrooney, Extension Plant Pathologist; bobmul@udel.edu Sunflowers are grown both as a crop for oil seed production as well as bird seed. There are many horticultural cultivars as well for flower production. Septoria leafspot as well as Alternaria leafspot are… Continue Reading →