2017 Cucurbit Downy Mildew Epidemic History | IPM Pipe

  • September 25
    New report from MS. CDM has been confirmed on cucumber and pumpkin in the sentinel plot in Lee County, MS. Incidence is unknown, severity is unknown. Estimated date of first symptoms is September 18.
  • September 22
    New report from NH. CDM has been confirmed on cucumber in a tiny home garden in Rockingham County, NH. Incidence is 100%, severity is 40%. Estimated date of first symptoms is September 8.
  • September 20
    New report from NH. CDM has been confirmed on cucumber in a tiny home garden in Stafford County, NH. Incidence is 100%, severity is 80%. Estimated date of first symptoms is September 9.
  • September 11
    New report from NY. CDM has been confirmed on cucumber in a 1000 sq. ft. greenhouse in Clinton County, NY. Incidence is 30%, severity is 75%. Estimated date of first symptoms is September 1.
  • September 8
    New report from OH. CDM has been confirmed on pumpkin in a field in Warren County, OH. Incidence is 20%, severity is 10%. Estimated date of first symptoms is August 25.
  • September 6
    New reports from OH, VA, and WV. CDM has been confirmed on pumpkin in a 0.5 acre research plot in Pike County, OH. Incidence is unknown, severity is unknown. Estimated date of first symptoms is September 1. CDM has been confirmed on zucchini in a 1 acre field in Tuscawaras County, OH. Incidence is 50%, severity is 25%. Estimated date of first symptoms is August 23. CDM has been confirmed on zucchini in a 1 acre field in Guernsey County, OH. Incidence is 50%, severity is 25%. Estimated date of first symptoms is August 25. CDM has been confirmed on pumpkin in a 1 acre field in Brunswick County, VA. Incidence is 75%, severity is 50%. Estimated date of first symptoms is August 28. CDM has been confirmed on cucumber in a 0.75 acre greenhouse in Mason County, WV. Incidence is 70%, severity is unknown. Estimated date of first symptoms is August 11.
  • September 4
    New report from PA. CDM has been confirmed on cucumber in a 10 acre field in Berks County, PA. Incidence is 5%, severity is 15%. Estimated date of first symptoms is August 20.

Source: 2017 cdm epidemic history | IPM Pipe