Bacterial wilt is a devastating disease of cucurbit crops (melon, cucumber, squash, pumpkin) in Iowa. Striped and spotted cucumber beetles transmit the bacteria (Erwinia tracheiphila) to cucurbit plants when their infected frass comes in contact with feeding wounds and floral nectaries. Infected plants usually wilt and die within two weeks.
Nelson, Hayley and Gleason, Mark
"Improving Row Cover Systems for Organic Management of Bacterial Wilt in Muskmelon and Squash—Year 1,"
Farm Progress Reports: Vol. 2016
, Article 38.
Available at: http://lib.dr.iastate.edu/farmprogressreports/vol2016/iss1/38