You are here

2014 cdm epidemic history

-A A +A

Cucurbit Downy Mildew Epidemic History for 2014

October 17
New Report from AL.
CDM has been confirmed on jack-o-lantern pumpkin in a 2 acre field in Elmore County, AL. Incidence is 100%, severity is 20%. Estimated date of first symptoms is October 7.

October 15
New Report from MD.
CDM has been confirmed on cucumber in a small home garden in Baltimore County, MD. Incidence is 100%, severity is unknown. Estimated date of first symptoms is October 8.

October 3
New Report from LA.
CDM has been confirmed on cucumber in a 0.5 acre field in Tangipahoa Parish, LA. Incidence is 100%, severity is 60%. Highly estimated date of first symptoms is September 18.

September 29
New Report from TN.
CDM has been confirmed on cucumber in a greenhouse in Hardemon County, TN. Incidence and severity are unknown. Estimated date of first symptoms is September 21.

September 26
New Report from NC.
CDM has been confirmed on cucumber in a research plot in Nash County, NC. Details of this outbreak are unknown. First symptoms are estimated at September 24.

September 22
New Reports from TN.
CDM has been confirmed on acorn / summer squash in a home garden in Bedford County, TN. Incidence is 100%, severity is 70%. Estimated date of first symptoms is September 8. CDM has been confirmed on acorn / yellow squash and pumpkin in a home garden in Cheatham County, TN. Incidence is 50%, severity is 20%. Estimated date of first symptoms is September 9.

September 19
New Report from NC.
CDM has been confirmed on cucumber and acorn/summer squash in a field in Sampson County, NC. Details of this outbreak are unknown. We have also received updates over the past several days from counties in NC, MD, and DE that have existing infections.

September 17
New Reports from NY and TN.
CDM has been confirmed on cucumber in a tiny field in Orleans County, NY. Incidence is 100%, severity is 70%. Estimated date of first symptoms is September 5. CDM has been confirmed on cucumber in a research plot in Knox County, TN. Incidence and severity are unknown. Estimated date of first symptoms is August 25.

September 15
New Reports from PA and OH.
CDM has been confirmed on cucumber in a 0.25 acre field in Huntingdon County, PA. Incidence is 70%, severity is 40%. Estimated date of first symptoms is September 11. CDM has been confirmed on cucumber in a small home garden in Geauga County, OH. Incidence is 100%, severity is 20%. Estimated date of first symptoms is September 5.

September 12
New Reports from OH and NY.
CDM has been confirmed on acorn/yellow/summer squash in a field in Guernsey County, OH. Incidence is unknown, severity is 25%. Estimated date of first symptoms is September 9. CDM has been discovered on cucumber in a 0.25 acre research plot in Ontario County, NY. Incidence is 25%, severity is 2%. Estimated date of first symptoms is September 11.

September 10
New Reports from OH, NJ, and PA.
CDM has been confirmed on processing pumpkin in a 3 acre field in Holmes County, OH. Incidence is 80%, severity is 50%. Estimated date of first symptoms is August 30. CDM has been confirmed on cantaloupe in the sentinel plot in Cumberland County, NJ. Incidence is 5%, severity is 5%. Estimated date of first symptoms is September 10. CDM has been confirmed on cucumber in a field in Washington County, PA. Incidence is unknown, severity is unknown. Estimated date of first symptoms is September 4.

September 8
First report from IL; New Reports from OH and TN. CDM has been confirmed on cucumber in a 0.2 acre field in Douglas County, IL. Incidence is 30%, severity is 10%. Estimated date of first symptoms is September 5. CDM has been confirmed on cantaloupe in the sentinel plot in Clark County, OH. Incidence is 10%, severity is 10%. Estimated date of first symptoms is September 4. CDM has been confirmed on cucumber in a 5 acre field in Rhea County, TN. Incidence is 5%, severity is <1%. Estimated date of first symptoms is August 27.

September 5
New Reports from NC, KY, NY, and IN.
CDM has been confirmed on cucumber in a greenhouse in Guilford County, NC. Incidence is unknown, severity is unknown. Estimated date of first symptoms is September 1. CDM has been confirmed on cucumber in a field in Calloway County, KY. Incidence is unknown, severity is 50%. Estimated date of first symptoms is August 28. CDM has been confirmed on butternut squash, jack-o-lantern pumpkin, and cucumber in the sentinel plot and an adjacent research plot in Knox County, IN. Incidence is 15%, severity is 5%. Estimated date of first symptoms is September 1. CDM has been confirmed on cucumber in a field in Erie County, NY. Incidence is unknown, severity is unknown. Estimated date of first symptoms is September 4. CDM has been confirmed on cucumber in a field in Wayne County, NY. Incidence is unknown, severity is unknown. Estimated date of first symptoms is September 1.

September 3
New Reports from NY, OH, TN, and PA.
CDM has been confirmed on cucumber in a field in Niagara County, NY. Incidence is unknown, severity is unknown. Estimated date of first symptoms is September 1. CDM has been confirmed on processing pumpkin in a 3 acre field in Ross County, OH. Incidence is 75%, severity is 15%. Estimated date of first symptoms is August 6. CDM has been confirmed on jack-o-lantern pumpkin in a 11 acre field in Gibson County, TN. Incidence is 100%, severity is 35%. Estimated date of first symptoms is August 13. CDM has been confirmed on jack-o-lantern pumpkin in a 1 acre research plot in Madison County, TN. Incidence is 100%, severity is 35%. Estimated date of first symptoms is August 13. CDM has been confirmed on cucumber in a 0.1 acre field in Lancaster County, PA. Incidence is 100%, severity is unknown. Estimated date of first symptoms is September 2. We have also had additional reports from Suffolk County, NY.

August 31
First report from IN; New Report from OH, NY, and WI.
CDM has been confirmed on butternut squash in the sentinel plot in LaPorte County, IN. Incidence is 100%, severity is 25%. Estimated date of first symptoms is August 22. CDM has been confirmed on cucumber in the sentinel plot in Sandusky County, OH. Incidence is 10%, severity is 15%. Estimated date of first symptoms is August 28. CDM has been confirmed on cucumber in a 1.5 acre field in Suffolk County, NY. Incidence is 10%, severity is 5%. Estimated date of first symptoms is August 28. CDM has been confirmed on cucumber in a 2 acre field in Green Lake County, WI. Incidence is 50%, severity is 80%. Estimated date of first symptoms is August 25.

August 29
New Reports from MI and NY.
CDM has been confirmed on cucumber in a field in St. Joseph County, MI. Incidence is unknown, severity is unknown. Estimated date of first symptoms is August 27. CDM has been confirmed on cucumber in a 1.5 acre research plot in Tompkins County, NY. Incidence is 2%, severity is 5%. Estimated date of first symptoms is August 28. CDM has been confirmed on cucumber in a 0.5 acre research plot in Chenango County, NY. Incidence is 2%, severity is 5%. Estimated date of first symptoms is August 26.

August 27
New Reports from PA and WV.
CDM has been confirmed on cucumber in a greenhouse in York County, PA. Incidence is 10%, severity is unknown. Estimated date of first symptoms is August 26. CDM has been confirmed on cantaloupe and cucumber in a home garden in Jefferson County, WV. Incidence is 60%, severity is 15%. Estimated date of first symptoms is August 25.

August 25
New Reports from TN and OH.
CDM has been confirmed on cucumber in a home garden in Davidson County, TN. Incidence is unknown, severity is 40%. Estimated date of first symptoms is August 1. CDM has been confirmed on cucumber in the sentinel plot in Huron County, OH. Incidence is 1%, severity is 1%. Estimated date of first symptoms is August 22. CDM has moved to cantaloupe in the sentinel plot in Wayne County, OH. Also, CDM has been discoved on cucumber in a small research plot in that same county.

August 22
First reports from MA, WV, and NY; New Report from MD.
CDM has been confirmed on pumpkin in a 2 acre field in Wayne County, OH. Incidence is 20%, severity is 10%. Estimated date of first symptoms is August 19. CDM has been confirmed on cucumber in a home garden in Preston County, WV. Incidence is 70%, severity is 25%. Estimated date of first symptoms is August 18. CDM has been confirmed on cantaloupe, cucumber, and watermelon in the sentinel plot in Monongalia County, WV. Incidence and severity vary among the hosts. Estimated date of first symptoms is August 15. CDM has been confirmed on cucumber in a 0.5 acre field in Ulster County, NY. Incidence is 60%, severity is 50%. Estimated date of first symptoms is August 13. CDM has been confirmed on cantaloupe and cucumber in the sentinel plot in Washington County, MD. Incidence is 100%, severity is 90% cucumber / 40% cantaloupe. Estimated date of first symptoms is August 1.

August 20
New Reports from NJ and MI.
CDM has been confirmed on cucumber in the sentinel plot in Hunterdon County, NJ. Incidence is 40%, severity is 10%. Estimated date of first symptoms is August 17. CDM has been confirmed on cantaloupe in a field in Monroe County, MI. Incidence is unknown, severity is unknown. Estimated date of first symptoms is August 18.  Update: CDM has been confirmed on jack-o-lantern pumpkin in a 35 acre field in Harnett County, NC, and on yellow / summer squash in the sentinel plot in Johnston County, NC.

August 18
New Reports from TN and MD.
CDM has been confirmed on cucumber in a home garden in Wilson County, TN. Incidence is unknown, severity is 5%. Estimated date of first symptoms is August 5. CDM has been confirmed on cucumber in the sentinel plot in Prince George's County, MD. Incidence is 100%, severity is 60%. Estimated date of first symptoms is August 1.

August 15
First reports from OH, WI, and PA; New Reports from NC, MI, and KY.
CDM has been confirmed on cucumber in a 1 acre field in Wayne County, OH. Incidence is 10%, severity is 10%. Estimated date of first symptoms is August 12. CDM has been confirmed on cucumber in a 0.2 acre research plot in Dane County, WI. Incidence is 1%, severity is 30%. Estimated date of first symptoms is August 13. CDM has been confirmed on cucumber in a 1 acre research plot in Centre County, PA. Incidence is 1%, severity is 3%. Estimated date of first symptoms is August 14. CDM has been confirmed on cucumber in the sentinel plot in Fayette County, KY. Incidence is unknown, severity is 20%. Estimated date of first symptoms is August 11. CDM has been confirmed on jack-o-lantern pumpkin in 1 acre fields in Warren and Harnett Counties, NC. Incidence is 10% Warren, 100% Harnett, and severity is 90% in each. Estimated date of first symptoms is August 1. CDM has been confirmed on cucumber in a field in Midland County, MI. Incidence is unknown, severity is unknown. Estimated date of first symptoms is August 11.

August 13
First report from ON; New Reports from NC and TN.
CDM has been confirmed on cucumber in a field in Chatham-Kent County, ON. Incidence is 1%, severity is 1%. Estimated date of first symptoms is August 11. CDM has been confirmed on cucumber in a research plot in Wayne County, NC. Incidence is 50%, severity is unknown. Estimated date of first symptoms is August 6. CDM has been confirmed on cucumber in a home garden in Franklin County, TN. Incidence is unknown, severity is 35%. Estimated date of first symptoms is August 4.

August 11
New Reports from SC and MI.
CDM has been confirmed on cucumber in a 20 acre field in Spartanburg County, SC. Incidence is unknown, severity is 10%. Estimated date of first symptoms is July 24. CDM has been confirmed on cucumber and yellow squash in a 30 acre field in Lexington County, SC. Incidence is 80%, severity is unknown. Estimated date of first symptoms is July 20. CDM has been confirmed on jack-o-lantern pumpkin in a 70 acre field in Chester County, SC. Incidence is 10%, severity is unknown. Estimated date of first symptoms is July 26. CDM has been confirmed on cucumber in a 1acre research plot in Calhoun County, MI. Incidence is 2%, severity is 5%. Estimated date of first symptoms is August 8.

August 6
First reports from DE; New Report from NC.
CDM has been confirmed on cucumber in the sentinel plot in Sussex County, DE. Incidence is unknown, severity is unknown. Estimated date of first symptoms is July 25. CDM has been confirmed on cucumber and cantaloupe in a home garden in Kent County, DE. Incidence and severity are unknown. Estimated date of first symptoms is July 25. CDM has been discovered on cucumber in a 1 acre field in Wilson County, NC. Incidence is 20%, severity is 80%. Estimated date of first symptoms is August 1.

August 1
First report from TN; New Report from NC.
CDM has been confirmed on cucumber in a home garden in Unicoi County, TN. Incidence is unknown, severity is 80%. Estimated date of first symptoms is July 15. CDM has been discovered on cucumber in a 10 acre field in Henderson County, NC. Incidence is 30%, severity is 15%. Estimated date of first symptoms is July 25. CDM has been discovered on cucumber in a 2 acre field in Pitt County, NC. Incidence is 80%, severity is 20%. Estimated date of first symptoms is July 18.

July 30
New report from NC. CDM has been confirmed on cucumber in a .5 acre research plot in Haywood County, NC. Incidence is 10%, severity is 80%. Estimated date of first symptoms is July 23.

July 28
New report from AL. CDM has been confirmed on cucumber in the sentinel plot in Chilton County, AL. Incidence is 50%, severity is 1%. Estimated date of first symptoms is July 20.

July 25
First reports from NJ and KY; New Report from MI.
CDM has been confirmed on cucumber in a 10 acre field in Salem County, NJ. Incidence is 100%, severity is 5%. Estimated date of first symptoms is July 22. CDM has been confirmed on cucumber in a field in Allen County, KY. Incidence is 10%, severity is unknown. Estimated date of first symptoms is July 21. CDM has been confirmed on cucumber in a field in Tuscola County, MI. Incidence and severity are unknown. Estimated date of first symptoms is July 22.

July 23
New report from NC; updates. CDM has been confirmed on cantaloupe in a home garden in Caldwell County, NC. Incidence is 100%, severity is 40%. Estimated date of first symptoms is July 14. Updates: CDM has been recently discovered on squash in a research plot in Johnston County, NC. CDM has also moved to other hosts in the sentinel plot in that county. CDM has spread to other hosts in the sentinel plot in Escambia County, AL.

July 18
New report from NC. CDM has been confirmed on cucumber in the sentinel plot in Rowan County, NC. Incidence is 50%, severity is 3%. Estimated date of first symptoms is July 13.

July 11
First reports from AL and MI; New Report from MD.
CDM has been confirmed on cucumber in the sentinel plot in Lee County, AL. Incidence is 100%, severity is 1%. Estimated date of first symptoms is July 9. CDM has been confirmed on cucumber and both varieties of squashin the sentinel plot in Escambia County, AL. Incidence is 100%. Severity is greatest on the butternut, with an estimated date of first symptoms of June 26. Estimated date of first symptoms for acorn squash and cucumber is July 3. CDM has been confirmed on both varieties of squash, pumpkin, and watermelon in the sentinel plot in Baldwin County, AL. Incidence is 100%. Severity is from 1 to 3 percent. Estimated date of first symptoms is July 3 for all hosts. CDM has been confirmed on cucumber in a 70 acre field in Gratiot County, MI. Incidence is 4%, severity is unknown. Estimated date of first symptoms is July 10. CDM has been confirmed on cucumber in the sentinel plot in Wicomico County, MD. Incidence is 50%, severity is 1%. Estimated date of first symptoms is July 11. Update: We have also received a report of CDM on squash in a small home garden in Wake County, NC.

July 7
New report from NC. CDM has been confirmed on cucumber in a small home garden in Wake County, NC. Incidence is 50%, severity is 10%. Estimated date of first symptoms is July 3.

July 4
First report from MD. CDM has also been confirmed on cucumber in a 50 acre field in Caroline County, MD. Incidence is 20%; severity is 1%. Estimated date of first symptoms is July 2.

July 2
New reports from NC. CDM has been confirmed on cucumber in the sentinel plot in Edgecombe County, NC. Incidence is 0.1%, severity is 0.1%. Estimated date of first symptoms is June 30. CDM has been observed in the sentinel plot on cucumber in Lenoir County, NC. Incidence is 65%, severity is 3%. Estimated date of first symptoms is June 28. CDM has been confirmed on cucumber in the sentinel plot in New Hanover County, NC. Incidence is 100%, severity is 15%. Estimated date of first symptoms is June 21.

June 30
New report from NC. CDM has been confirmed on cucumber in the sentinel plot in Johnston County, NC. Incidence is 100%, severity is 10%. Estimated date of first symptoms is June 23. Also, CDM has been observed in a nearby research plot on cucumber and cantaloupe. Incidence is 90%, severity is 1%. Estimated date of first symptoms is June 25. Update: CDM has been confirmed on cantaloupe in a research plot in Charleston County, SC.

June 25
New report from NC. CDM has been confirmed on cucumber in a field in Franklin County, NC. Incidence is 1%, severity is 20%. Estimated date of first symptoms is June 16. Also, we have learned that CDM is NOT present in Vermilion Parish, LA. That report has been deleted.

June 23
Update from SC. CDM has been confirmed on cucumber in the sentinel plot in Charleston County, SC.

June 20
New reports from SC. CDM has been confirmed on acorn / summer squash in a 0.5 acre field in Williamsburg County, SC. Incidence is 10%, severity is unknown. Estimated date of first symptoms is June 12. CDM has been confirmed on cucumber and cantaloupe in a 0.05 acre field in Charleston County, SC. Incidence is unknown, severity is 40%. Estimated date of first symptoms is June 12.

June 18
First report from LA. CDM has also been confirmed on cucumber in the sentinel plot in Franklin Parish, LA. Incidence is 100%; severity is 85%. Estimated date of first symptoms is June 13.

June 16
Update from FL. CDM has been confirmed on cucumber in the sentinel plot in Marion County, FL.

June 11
First report from SC. CDM has been confirmed on cantaloupe in a field in Beaufort County, SC. Estimated date of first symptoms is June 3. No other details are available.

June 9
First report from NC; New Reports from GA.
CDM has been confirmed on cucumber in a 30 acre commercial field in Duplin County, NC. Incidence is 1%, severity is 80%. Estimated date of first symptoms is June 8. CDM has been discovered on cucumber in a 20 acre field in Colquitt County, GA. Incidence and severity are 10%. Estimated date of first symptoms is June 2. CDM has been confirmed on cucumber in a 1 acre research plot in Tift County, GA. Incidence is 10%; severity is 20%. Estimated date of first symptoms is June 4.

June 6
New report from FL. CDM has been confirmed on acorn / summer squash in a 0.1 acre research plot in Marion County, FL. Incidence is 65%, severity is 10%. Estimated date of first symptoms is May 23.

May 23 - June 4
No new reports or updates.

May 21
First report from GA. CDM has been confirmed on cucumber in a 10 acre commercial field in Lowndes County, GA. Incidence is 25%, severity is 5%. Estimated date of first symptoms is May 16.

April 18 - May 14
No new reports or updates.

April 16
New report from FL. CDM has been confirmed on acorn and summer squash and cantaloupe in a home garden in Hillsborough County, FL. Incidence is 100%, severity is 10%. Estimated date of first symptoms is April 9.  

April 11
First report from TX. CDM has been confirmed on watermelon in a 100 acre commercial field in Hidalgo County, TX. Incidence is 1%, severity is 1%. Estimated date of first symptoms is April 9. 

April 2-9
No new reports or updates.

March 20-31
No new reports or updates.

March 19
CDM has moved to watermelon in the sentinel plot in Miami-Dade County, FL.

March 10
New report from FL. CDM has been confirmed on watermelon in a 30 acre commercial field in Collier County, FL. Incidence is <1%, severity is unknown. Estimated date of first symptoms is February 25.  

February 27
First report from the U.S. (FL). CDM has been confirmed on butternut and acorn squash, giant pumpkin, cantaloupe, and cucumber in the sentinel plot in Miami-Dade County, FL. Incidence is 100%, severity is 5%. Estimated date of first symptoms is February 25.