Bob Mulrooney, Extension Plant Pathologist; bobmul@udel.edu
Gavel has been labeled for use on pumpkin and winter squash for the control of Alternaria leaf spot, Cercospora leaf spot, downy mildew and Phytophthora fruit and stem rot. This is in addition to labels for use on cucumber, cantaloupe, summer squash and watermelon. Gavel is not recommended for downy mildew control on cucumbers but is recommended for control on pumpkin and winter squash as well as watermelon and cantaloupe. Remember that Gavel contains mancozeb, so some cantaloupe varieties might be sensitive. Go to http://www.cdms.net/LDat/ld4PP006.pdf to see updated label.