FORECAST DISCUSSION: Wednesday, June 28: *** Epidemic Update - Blue mold has been reported in Pennsylvania *** Bob Anderson informs us that blue mold has been discovered in southeast PA in Lancaster and Chester Counties. These two outbreaks have occurred in the field. Both are small but sporulating strongly. This source area will be added to the forecasts. The southern GA / northern FL region will likely be removed from the detailed forecasts. We will continue to monitor the threat from this region and report any significant events. *** Monday, June 26. Blue mold has been reported in southern New England *** Jim LaMondia informs us that a few lesions were found on tobacco plants in a greenhouse at the University of MA in Amherst, on June 23. Infected plants were destroyed and others were treated with Acrobat. Growers in the Connecticut River Valley region should be alert to the possibility of infections.
*** The weather in the eastern U.S. will be favorable for disease development Wednesday and Thursday. *** A nearly stationary front is positioned over the mid-Atlantic and TN Valley regions. Clouds, showers, and thunderstorms will visit many areas until the front is pushed to the south and east on Thursday. Growers in the southern Appalachian Mountains, central and eastern NC, southeast VA, and southern MD are at HIGH RISK of disease development Wednesday and Thursday. There is Strongly Moderate Risk for eastern KY, southeast PA, and southern VA. Farther north.... growers in southern Ontario and southern New England face Low Risk today. Conditions will become favorable on Thursday for both areas, however. Strongly Moderate Risk for southern Ontario and southern New England on Thursday. In the extended outlook, good news is on the horizon: dry, unfavorable weather will dominate over most growing areas this weekend, with cooler temperatures and lower humidities.
*** The 2000 bluemold county disease map is now available. Follow the link below or from our Homepage ***
*** International disease reports are now online *** Links to these reports can be found on our homepage and on the page with all the forecasts for 2000.
TK
Seriously Threatening Sources: Central and eastern NC, southern Appalachian Mountains, east-central KY, southeast PA
HIGH RISK areas: Central and eastern NC, southern Appalachian Mountains
Blue Mold in the Field (click on small image for larger image)
What should one look for?
*** New for 2000 *** Climate Outlooks and Epidemic Prognoses
County Map of New and Existing Outbreaks, 2000
(Red = New, 1 to 7 days; Blue = Active, > 7 days; Green = Old)
Current Sources:
Previous Sources:
Pinar del Rio, Cuba
Papantla, Mexico
Tepic, Mexico
***** NOTE: These forecasts/outlooks only apply to disease development from airborne transport of spores!!! We do not have the capability to ascertain blue mold development by other means, such as transplanting of infected seedlings, nor will we attempt to do so. Please consult the Extension Service personnel in your area if you have concerns about these matters! *****
This service is provided by the North Carolina State University departments of Plant Pathology and Marine, Earth, and Atmospheric Sciences.
