captan 50----captec 4l----have a protective and curative activity,not listed for pumpkins but we still use it,is some good stuff,it can also be used as a postharvest fruit application,to control various molds and storage rot,also be used for soil treatment for the control of certain seed rots and damping off diseasem,root rot,------oxidate for your downy mildew and powdert mildew------bravo is used for vine rot,leaf rust,fruit rot,gummy stem blight,fruit rot and black mold,belly rot,stem blight,stem end rot,stem rot,bravo,oxidate and captan 50 do not have the same ingredients like kilr said alternate, use those three fungicides and it will help you next year.