***** Disease Update - 12 September ***** Two outbreaks to report.... one near Tifton in southern Georgia. Kenny Seabold informs us of an outbreak on watermelon in a one-acre test plot. First observed in late August, disease severity increased significantly about 10 days after the last application of Ridomil. Irrigation and early-morning dews have provided favorable conditions for DM. Our thanks also to Margaret McGrath in New York. She states that downy mildew was observed on September 9th in Suffolk County, near the town of Riverhead. This is a non-serious infection of pumpkin and winter squash in a 0.2-acre plot.
FORECAST SUMMARY - Tuesday, September 12
*** Expect scattered showers in the Southeast... Ohio Valley... and near the Appalachian Mountains. Dry weather is expected in the Northeast and most of the mid-Atlantic region. *** A stationary front now in the Southeast will north as a warm front during the next two days. Mixed to mostly favorable conditions for disease development will be found near the front. High pressure to the north will enforce dry weather in the Northeast. Moderate Risk for central and northern FL both days. Strongly Moderate Risk for southern GA both days. Low Risk near the sources in eastern VA and southern NJ both days. Elsewhere......
Tuesday.... Weakly Moderate Risk for southern and eastern SC and south-central NC. Strongly Moderate Risk for western IN and nearly all of IL. Low Risk otherwise.
Wednesday.... Moderate Risk for east-central and north-central SC, eastern and north-central NC, and central VA. Strongly Moderate Risk for southeast IL, western and northern IN, and western and northern sections of the lower peninsula of Michigan. Low Risk otherwise.
TK
Current Sources:
Previous Sources:
Immokalee, FL
Charleston, SC
This service is provided by the North Carolina State University departments of Plant Pathology and Marine, Earth, and Atmospheric Sciences.