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2018 cdm epidemic history

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Cucurbit Downy Mildew Epidemic History for 2018

September 7
New reports from NY, OH, and WI; CDM has been reported on cucumber in a 0.2a field in Niagara County, NY. Incidence is 50%, severity is 25%. Estimated date of first symptoms is August 29. CDM has been reported on jack-o-lantern pumpkin in a research plot in Champaign County, OH. Incidence is 100%, severity is 30%. Estimated date of first symptoms is August 28. CDM has been reported on cucumber in a 10a field in Seneca County, OH. Incidence is 100%, severity is 65%. Estimated date of first symptoms is August 25. CDM has been reported on cucumber in the 2a sentinel plot in Waushara County, WI. Incidence is 10%, severity is 80%. Estimated date of first symptoms is September 1.

September 4
New report from TN; CDM has been reported on jack-o-lantern pumpkin in a 5a field in Carter County, TN. Incidence is 25%, severity is 25%. Estimated date of first symptoms is August 23.

August 31
New reports from TN and SC; CDM has been reported on cucumber in a 1a field in Lawrence County, TN. Incidence is 100%, severity is 20%. Estimated date of first symptoms is August 23. CDM has been reported on cucumber in a 3a field in Aiken County, SC. Incidence is 100%, severity is 40%. Estimated date of first symptoms is August 10.

August 28
New reports from KY, NY, OH, NC, and ON; CDM has been reported on cucumber in the sentinel plot in Fayette County, KY. Incidence is unknown, severity is 15%. Estimated date of first symptoms is August 23. CDM has been reported on cucumber in a 90a field in Genessee County, NY. Incidence is 55%, severity is 25%. Estimated date of first symptoms is August 23. CDM has been reported on cucumber in a 0.5a field in Wayne County, OH. Incidence is 10%, severity is 20%. Estimated date of first symptoms is August 21. CDM has been confirmed on squash and pumpkin in a 2a field in Yadkin County, NC. Incidence is 50%, severity is unknown. Estimated date of first symptoms is August 21. CDM has been reported on cucumber in a research plot in Chatham-Kent County, ON. Incidence is 15%, severity is 2%. Estimated date of first symptoms is August 23.

August 26
New reports from PA and KY; CDM has been reported on cucumber in a home garden in Columbia County, PA. Incidence is 100%, severity is 80%. Estimated date of first symptoms is August 23. CDM has been observed on butternut squash in the sentinel plot in Caldwell County, KY. Incidence is unknown, severity is unknown. Estimated date of first symptoms is August 23.

August 24
New reports from IN, AL, WI, PA, and NY; CDM has been reported on cucumber in the sentinel plot in Knox County, IN. Incidence is 2%, severity is 0.1%. Estimated date of first symptoms is August 18. CDM has been confirmed on pumpkin in a 2a field in Shelby County, AL. Incidence is 100%, severity is 20%. Estimated date of first symptoms is August 13. CDM has been observed on pumpkin in a 0.5a research plot in Elmore County, AL. Incidence is 100%, severity is 35%. Estimated date of first symptoms is August 10. CDM has been reported on cucumber in the sentinel plot in Dane County, WI. Incidence is 6%, severity is 15%. Estimated date of first symptoms is August 14. CDM has been observed on pumpkin in a 10a field in Chester County, PA. Incidence is 25%, severity is 15%. Estimated date of first symptoms is August 23. CDM has been confirmed on cucumber in a 1a field in Chautauqua County, NY. Incidence is 10%, severity is 15%. Estimated date of first symptoms is August 20. CDM has been confirmed on cucumber in a 1a field in Allegany County, NY. Incidence is 50%, severity is 5%. Estimated date of first symptoms is August 20. CDM has been confirmed on cucumber in a 1a field in Cattaraugus County, NY. Incidence is 40%, severity is 15%. Estimated date of first symptoms is August 20. CDM has been confirmed on delacata squash in a 1a field in Tioga County, NY. Incidence is 100%, severity is 15%. Estimated date of first symptoms is August 18.

August 21
First report from CT; New reports from VA, PA, and WV.
CDM has been reported on cucumber in a field in Hartford County, CT. Incidence is unknown, severity is unknown. Estimated date of first symptoms is August 13. CDM has been discovered on cucumber in a home garden and jack-o-lantern pumpkin in a 3a field in Madison County, VA. Incidence is 100%, severity is 20% in the garden; incidence is 1%, severity is <1% in the field. Estimated dates of fist symptoms are August 12 and 13. CDM has been discovered on cucumber in a 1a field in Albemarle County, VA. Incidence is 100%, severity is 10%. Estimated date of fist symptoms is August 9. CDM has been reported on cucumber in a home garden in Montgomery County, VA. Incidence is 50%, severity is 10%. Estimated date of first symptoms is August 11. CDM has been discovered on cucumber and jack-o-lantern pumpkin in a 2.5a field in Blair County, PA. Incidence is 80%, severity is 50%. Estimated date of first symptoms is August 21. CDM has been confirmed on cucumber in a 0.5a field in Monroe County, WV. Incidence is 50%, severity is 25%. Estimated date of first symptoms is August 15. CDM has been confirmed on cucumber in the sentinel plot in Monongalia County, WV. Incidence is 50%, severity is 5%. Estimated date of first symptoms is August 17.

August 19
First report from WI; new reports from MI, SC, MA, and PA.
CDM has been reported on cucumber in the sentinel plot in Columbia County, WI. Incidence is 4%, severity is 5%. Estimated date of first symptoms is August 13. CDM has been reported on cucumber in fields in Allegan and Newaygo Counties, MI. Incidence is unknown, severity is unknown. Estimated date of first symptoms is August 15 and 16. CDM has been reported on cantaloupe in the sentinel plot in Berrien County, MI. Incidence and severity are unknown. Estimated date of first symptoms is August 15. CDM has been reported on cucumber in the sentinel plot in Ingham County, MI. Incidence and severity are unknown. Estimated date of first symptoms is August 15. CDM has been reported on watermelon in a field in Chesterfield County, SC. Incidence is unknown, severity is unknown. Estimated date of first symptoms is August 15. CDM has been discovered on cucumber in a 1a field in Worcester County, MA. Incidence is 90%, severity is 50%. Estimated date of fist symptoms is August 13. CDM has been reported on cucumber in a home garden in Montour County, PA. Incidence is 100%, severity is 30%. Estimated date of first symptoms is August 14.

August 17
New reports from NY, OH, and MI.
CDM has been discovered on cucumber in a 1a field in Yates County, NY. Incidence is 1%, severity is 15%. Estimated date of fist symptoms is August 13. CDM has been reported on cucumber in a .2a research plot in Ontario County, NY. Incidence is 5%, severity is 8%. Estimated date of first symptoms is August 15. CDM has been discovered on cucumber in a 1a field in Medina County, OH. Incidence is 2%, severity is 5%. Estimated date of fist symptoms is August 12. CDM has been reported on cucumber in a 2a research plot in Calhoun County, MI. Incidence is 1%, severity is 15%. Estimated date of first symptoms is August 13.

August 14
New reports from MI and NY.
CDM has been reported on cucumber in a commercial field in Clinton County, MI. Incidence is unknown, severity is unknown. Estimated date of first symptoms is August 10. CDM has been reported on cucumber in a field in Van Buren County, MI. Incidence is unknown, severity is unknown. Estimated date of first symptoms is August 13. CDM has been reported on cucumber in the sentinel plot in Suffolk County, NY. Incidence is 15%, severity is <1%. Estimated date of first symptoms is August 14.

August 12
First report from OH; new reports from AL, PA, and VA.
CDM has been reported on cantaloupe in a research plot in Huron County, OH. Incidence is <1%, severity is <1%. Estimated date of first symptoms is August 8. CDM has been reported on cucumber in a home garden in Limestone County, AL. Incidence is 100%, severity is 75%. Estimated date of first symptoms is July 20. CDM has been reported on cucumber in a home garden in Montgomery County, AL. Incidence is 100%, severity is 25%. Estimated date of first symptoms is July 27. CDM has been reported on cucumber in a 0.25a field in Juniata County, PA. Incidence is 100%, severity is 95%. Estimated date of first symptoms is August 10. CDM has been reported on cucumber in the sentinel plot in Accomack County, VA. Incidence is 50%, severity is 20%. Estimated date of first symptoms is August 4.

August 10
First reports from MA, WV, and Canada; new reports from NC, MI, PA, NY, and MD.
CDM has been reported on cucumber in a 1a research plot in Franklin County, MA. Incidence is 5%, severity is 5%. Estimated date of first symptoms is August 6. CDM has been reported on cucumber in a 0.5 acre field in Raleigh County, WV. Incidence is 50%, severity is 25%. Estimated date of first symptoms is July 28. CDM has been reported on cucumber in a field in Haldimand-Norfolk County, ON. Incidence is 3%, severity is unknown. Estimated date of first symptoms is August 6. CDM has been reported on cucumber in a 0.51 acre field in Orange County, NC. Incidence is 100%, severity is 50%. Estimated date of first symptoms is July 21. CDM has been reported on cucumber in a field in Bay County, MI. Incidence is unknown, severity is unknown. Estimated date of first symptoms is August 7. CDM has been reported on cucumber in a field in Clinton County, MI. Incidence is unknown, severity is unknown. CDM has been discovered in a 0.5a field of cucumber in Luzerne County, PA. Incidence is 100%, severity is 10%. Estimated date of first symptoms is August 7. CDM has been discovered in a 2a field of cucumber in Clinton County, PA. Incidence is 60%, severity is 20%. Estimated date of first symptoms is August 7. CDM has been discovered in a 10a field of cucumber in Greene County, NY. Incidence is 5%, severity is 1%. Estimated date of first symptoms is August 7. CDM has been observed in a 0.5a field in Orange County, NY. Incidence is 75%, severity is 50%. Estimated date of first symptoms is August 7. CDM has been confirmed on cantaloupe and pumpkin in the sentinel plot in Prince Georges County, MD. No information on incidence and severity are available. Estimated date of first symptoms in August 8.

August 8
First report from NY; new reports from PA, VA, MD, DE, IN, and MI. CDM had been confirmed in Tompkins County, NY; Centre County, PA; Chesterfield County, VA; Wicomico County, MD; Sussex County, DE; Porter County, IN; and Muskegon County, MI. CDM has been reported on cucumber in a field in Tompkins County, NY. Incidence is unknown, severity is unknown. Estimated date of first symptoms is August 6. CDM has been reported on cucumber in the sentinel plot in Centre County, PA. Incidence is 50%, severity is 10%. Estimated date of first symptoms is August 6. CDM has been reported on cucumber in the sentinel plot in Chesterfield County, VA. Incidence is 85%, severity is 75%. Estimated date of first symptoms is August 3. CDM has been reported on cucumber in the sentinel plot in Wicomico County, MD. Incidence is unknown, severity is unknown. Estimated date of first symptoms is August 5. CDM has been reported on cucumber in a 2a research plot in Sussex County, DE. Incidence is 100%, severity is 10%. Estimated date of first symptoms is July 24. CDM has been reported on cucumber in a 0.5a research plot in Porter County, IN. Incidence is 0.1%, severity is unknown. Estimated date of first symptoms is August 3. CDM has been reported on cucumber in a field in Muskegon County, MI. Incidence is unknown, severity is unknown. Estimated date of first symptoms is August 6.

August 5
New report from PA. CDM has been confirmed on cucumber in a tiny home garden in Bucks County, PA. Incidence is 100%: severity is 15%. Estimated date of first symptoms is August 3.

August 3
First report from IN. New reports from VA and NJ. CDM has been confirmed on cucumber in a field in LaGrange County, IN. Incidence and severity are unknown. Estimated date of first symptoms is August 1. CDM has been confirmed on cucumber in the 0.5a sentinel plot in Hunterdon County, NJ. Incidence is 10%; severity is 20%. Estimated date of first symptoms is July 31. CDM has been confirmed on butternut squash in the sentinel plot in Suffolk County, VA. Incidence is 100%; severity is 10%. Estimated date of first symptoms is July 29. CDM has been confirmed on cucumber in fields in Arenac and Saginaw Counties, MI. Incidence and severity are unknown. Estimated date of first symptoms is August 2.

July 31
First reports from TN and MI. New reports from PA and NJ. CDM has been confirmed on cucumber in the sentinel plot in Knox County, TN. Incidence is 100%; severity is 50%. Estimated date of first symptoms is July 23. CDM has been observed on cucumber in a field in Berrien County, MI. Incidence and severity are unknown. Estimated date of first symptoms is July 24. CDM has been confirmed on cucumber in the sentinel plot in Lancaster County, PA. Incidence is 5%; severity is 40%. Estimated date of first symptoms is July 30. CDM has been confirmed on jack-o-lantern pumpkin in a home garden in Cumberland County, NJ. Incidence is 10%, severity is 10%. Estimated date of first symptoms is July 31.

July 29
First reports from KY. New report from AL. CDM has been confirmed on cucumber in the sentinel plots in Pulaski and Breathitt Counties, KY. Incidence and severity are unknown. Estimated date of first symptoms is July 27. CDM has been confirmed on cucumber in an home garden in Russell County, AL. Incidence and severity are unknown. Estimated date of first symptoms is July 7.

July 27
New reports from PA, NC, and NJ. CDM has been confirmed on cucumber in a 400 sq ft field in Lehigh County, PA. Incidence is unknown, severity is unknown. Estimated date of first symptoms is July 25. CDM has been observed on butternut squash in a 10a field in Cumberland County, NJ. Incidence is 100%, severity is 60%. Estimated date of first symptoms is July 24. CDM has been discovered on cucumber in the sentinel plot in Haywood County, NC. Incidence is 5%, severity is 10%. Estimated date of first symptoms is July 24.

July 22
New reports from NC and VA. CDM has been confirmed on cucumber in a 45 acre field in Henderson County, NC. Incidence is 15%, severity is 40%. Estimated date of first symptoms is July 20. CDM has been observed on cucumber in a 0.25a home garden in Emporia County, VA. Incidence is 100%, severity is 25%. Estimated date of first symptoms is July 10.

July 20
New report from NC. CDM has been confirmed on cucumber in a 0.1a home garden in Chatham County, NC. Incidence is 60%, severity is 90%. Estimated date of first symptoms is July 16.

July 17
First report from VA. New report from NC. CDM has been confirmed on cucumber in an home garden in Dinwiddie County, VA. Incidence is 100%, severity is 25%. Estimated date of first symptoms is July 8. CDM has been confirmed on butternut squash and cucumber in a 0.1a home garden in Hyde County, NC. Incidence is 50%, severity is 100%. Estimated date of first symptoms is July 9.

July 15
New reports from AL and NJ. CDM has been confirmed on butternut squash and cucumber in the sentinel plot in Baldwin County, AL. Incidence is 100%, severity is 35%. Estimated date of first symptoms is June 30. CDM has been confirmed on cucumber in the sentinel plot in Escambia County, AL. Incidence is 100%, severity is 75%. Estimated date of first symptoms is June 26. CDM has been discovered on cucumber in a 0.25a field in Warren County, NJ. Incidence is 100%, severity is 9%. Estimated date of first symptoms is July 9.

July 13
First report from PA. CDM has been confirmed on cucumber in an 400 sq. ft. home garden in Mifflin County, PA. Incidence is 100%, severity is 15%. Estimated date of first symptoms is July 11.

July 8
New reports from DE and MD. CDM has been confirmed on cucumber in a field in Kent County, DE. Incidence and severity are unknown. Estimated date of first symptoms is July 2. CDM has been confirmed on cucumber in the sentinel plot in Wicomico County, MD. Incidence and severity are unknown. Estimated date of first symptoms is July 6.

July 3
First report from NJ. New report from NC. CDM has been confirmed on cucumber in an 18a field in Salem County, NJ. Incidence is 1%, severity is 1%. Estimated date of first symptoms is July 2. CDM has been observed on cucumber in a very tiny home garden in Wake County, NC. Incidence is 100%, severity is 1%. Estimated date of first symptoms is July 1.

June 29
First report from AL. New reports from GA and SC. CDM has been confirmed on cantaloupe, cucumber, and squash in a 1a home garden in Lee County, AL. Incidence is 100%, severity is 50%. Estimated date of first symptoms is June 15. CDM has been confirmed on watermelon in a 30 acre field in Turner County, GA. Incidence is 10%, severity is unknown. Estimated date of first symptoms is June 22. CDM has been observed on cucumber in a field in Darlington County, SC. Incidence and severity are unknown. Estimated date of first symptoms is June 22. CDM has been confirmed on butternut squash in the sentinel plot in Lexington County, SC. Incidence is 10%, severity is 25%. Estimated date of first symptoms is June 24.

June 27
New report from GA. CDM has been confirmed on watermelon in a 20 acre field in Cook County, GA. Incidence is 10%, severity is 35%. Estimated date of first symptoms is June 20.

June 17
New reports from NC. CDM has been confirmed on cucumber in a 30 acre field in Nash County, NC. Incidence is 1%, severity is 20%. Estimated date of first symptoms is June 15. CDM has been confirmed on cucumber in a 0.1 acre research plot in Johnston County, NC. Incidence is 1%, severity is 1%. Estimated date of first symptoms is June 15.

June 15
First report from MD. New reports from NC, SC, and GA. CDM has been confirmed on cucumber in a 30a field in Dorchester County, MD. Incidence is .01%, severity is .05%. Estimated date of first symptoms is June 13. CDM has been confirmed on cucumber in the sentinel plot in Edgecombe County, NC. Incidence is 5%, severity is 1%. Estimated date of first symptoms is June 13. CDM has been observed on cantaloupe in a field in Bamburg County, SC. Incidence is unknown, severity is 5%. Estimated date of first symptoms is June 8. CDM has been confirmed on cucumber in a 30 acre field in Decatur County, GA. Incidence is 40%, severity is 25%. Estimated date of first symptoms is June 7.

June 13
First reports from SC. New report from GA. CDM has been confirmed on cucumber in a field in Horry County, SC. Incidence is unknown, severity is unknown. Estimated date of first symptoms is June 6. CDM had been observed on butternut and summer squash in the sentinel plot in Charleston County, SC. Incidence is unknown, severity is unknown. Estimated date of first symptoms is May 31. CDM has been confirmed on cucumber in a 20 acre field in Thomas County, GA. Incidence is unknown, severity is 10%. Estimated date of first symptoms is June 5.

June 6
New report from NC. CDM has been confirmed on cucumber in a 40 acre field in Duplin County, NC. Incidence is 10%, severity is 10%. Estimated date of first symptoms is June 1.

June 4
New report from GA. CDM has been confirmed on cucumber in a 2 acre research plot in Tift County, GA. Incidence is unknown, severity is 10%. Estimated date of first symptoms is May 28.

June 1
New report from NC. CDM has been confirmed on cucumber in a 10 acre field in Wilson County, NC. Incidence is <1%, severity is 20%. Estimated date of first symptoms is May 27.

May 30
First report from NC. CDM has been confirmed on cucumber in a 10 acre field in Sampson County, NC. Incidence is 10%, severity is 5%. Estimated date of first symptoms is May 29.

May 25
First report from GA. CDM has been confirmed on cucumber in a 20 acre field in Brooks County, GA. Incidence is 5%, severity is 10%. Estimated date of first symptoms is May 17.

May 15
First report from the U.S. (FL). CDM has been confirmed on cucumber >in the sentinel plot in Hillsborough County, FL. Incidence is 5%, severity is 30%. Estimated date of first symptoms is April 26. CDM has also been confirmed on butternut squash in a 5 acre field in Manatee County, FL. Incidence is 15%, severity is 10%. Estimated date of first symptoms is March 3.