New winter squash decline research paves the way for understanding the disease

Winter squash is an important crop grown in the Willamette Valley, and the most important processing cultivar, Golden Delicious, has been grown in Oregon since the 1970s. Over the last two decades, however, growers have noticed yield declines throughout the valley. Agriculture specialists have identified an association between yield decline and disease symptoms such as stunting, vascular discoloration, late-season vine collapse, and root and crown rot, all symptoms of soilborne disease.