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2019 cdm epidemic history

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Cucurbit Downy Mildew Epidemic History for 2019

June 22
New report from NC. 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 17.

June 20
New reports from GA and NC. CDM has been confirmed on watermelon in a 35a field in Seminole County, GA. Incidence is 5%, severity is 30%. Estimated date of first symptoms is June 16. CDM has been confirmed on cucumber in a 30a field in Duplin County, NC. Incidence is 30%, severity is 20%. Estimated date of first symptoms is June 14. CDM has been confirmed on cucumber in a 20a field in Franklin County, NC. Incidence is 15%, severity is 5%. Estimated date of first symptoms is June 15. CDM has been confirmed on cucumber in a 33a field in Sampson County, NC. Incidence is 20%, severity is 20%. Estimated date of first symptoms is June 14.

June 17
New report from GA. CDM has been confirmed on watermelon in a 20a field in Ben Hill County, GA. Incidence is 5%, severity is 10%. Estimated date of first symptoms is June 14.

June 15
First report from NC. New report from SC. CDM has been confirmed on cucumber in a 9a field in Wilson County, NC. Incidence is 5%, severity is 10%. Estimated date of first symptoms is June 12. CDM has been confirmed on cucumber in a 0.1 acre research plot in Charleston County, SC. Incidence is 5%, severity is 10%. Estimated date of first symptoms is June 10.

June 13
New report from SC. CDM has been confirmed on cucumber in a home garden in Gadsden County, FL. Incidence is 10%, severity is 2%. Estimated date of first symptoms is June 5.

June 10
New reports from FL and SC. CDM has been confirmed on butternut squash in the sentinel plot in Gadsden County, FL. Incidence is 100%, severity is 15%. Estimated date of first symptoms is June 7. CDM has been confirmed on cucumber in a 17.5 acre field in Marion County, SC. Incidence is 10%, severity is 10%. Estimated date of first symptoms is June 5. CDM has been confirmed on watermelon in a 40 acre field in Alachua County, FL. Incidence is unknown, severity is unknown. Estimated date of first symptoms is May 22. CDM has been confirmed on watermelon in a field in Levy County, FL. Incidence is unknown, severity is unknown. Estimated date of first symptoms is May 20.

June 6
First report from SC. CDM has been confirmed on cucumber in a field in Bamburg County, SC. Incidence is unknown, severity is 5%. Estimated date of first symptoms is May 31.

May 25
First reports from GA. New report from FL. CDM has been confirmed on cucumber in a 30a field in Lowndes County, GA. Incidence is 5%, severity is 20%. Estimated date of first symptoms is May 20. CDM has been confirmed on cucumber in a 40a field in Colquitt County, GA. Incidence is 5%, severity is 20%. Estimated date of first symptoms is May 20. CDM has been confirmed on watermelon in a 50a field in Decatur County, GA. Incidence is 5%, severity is 20%. Estimated date of first symptoms is May 20. CDM has been observed on acorn squash, cantaloupe, and cucumber in the sentinel plot in Marion County, FL. Indicence and severity are around 1%. Estimated date of first symptoms is May 20.

May 23
Update from FL. CDM has been confirmed on butternut squash and watermelon in a research plot adjacent to the sentinel plot in Collier County, FL. Incidence is 10%, severity is <1%. Estimated date of first symptoms is May 10. CDM has been confirmed on more hosts in the sentinel plot in Collier County, FL including cantaloupe, acorn / butternut squash, and Thunder Kabocha squash. Incidences and severities are approximately 10% and <1%, respectively.

May 9
New report from FL. CDM has been confirmed on zucchini, cantaloupe, and watermelon in a 3 acre research plot in St. Lucie County, FL. Incidence is 90%, severity is 25%. Estimated date of first symptoms is May 2. CDM has also moved to several other hosts in the Hillsborough County, FL sentinel plot with considerable increase in overall incidence and severity.

April 22
New report from FL. CDM has been confirmed on cucumber in the sentinel plot in Collier County, FL. Incidence is 1%, severity is 1%. Estimated date of first symptoms is April 12.

April 9
New report from FL. CDM has been confirmed on butternut squash and cucumber in the sentinel plot in Hillsborough County, FL. Incidence is 1-2%, severity is 19%. Estimated date of first symptoms is April 5.

April 2
New report from FL. CDM has been confirmed on butternut squash, cantaloupe, and cucumber in the sentinel plot in Miami-Dade County, FL. Incidence is 0.1%, severity is 0.1%. Estimated date of first symptoms is April 1.

February 12
First report from the U.S. (FL). CDM has been confirmed on watermelon in a 2000 sq. ft. greenhouse in Hendry County, FL. Incidence is 15%, severity is 1%. Estimated date of first symptoms is February 4.