FORECAST DISCUSSION: Monday, July 17: *** Epidemic Update: First report of blue mold from Maryland *** Blue mold was discovered this past Thursday, July 12, in St. Mary's County in southern Maryland. Fresh lesions are scattered throughout a 20-acre field but with only a few lesions per plant. Active sporulation is occurring. Chuck Johnson in Virginia informs us that blue mold continues to spread in the south-central portion of that state.
*** After a break for most areas, favorable weather will return to the Ohio Valley and Mid-Atlantic states. *** Yet another strong cold front will push south and east from the Great Lakes Monday and Tuesday. Unsettled weather will move into the Ohio Valley and the southern Appalachian Mountains on Tuesday. Areas east of the mountains will have mostly unfavorable weather through the period. No long-range transport is expected from any of the source regions. Southern New England will have showery weather both days, with Strongly Moderate Risk to growers in that area. Southern Ontario and southeast PA may have some localized disease development, since showers are possible overnight in these areas. In the Ohio Valley and mid-Atlantic states, all growers are at Low Risk on Monday. Growers in KY, southern OH, and western WV will be at Strongly Moderate Risk on Tuesday. Growers in the southern Appalachian Mountains will be at Moderate Risk on Tuesday. Growers east of the mountains will remain at Low Risk on Tuesday. In the extended period..... this front is going to stall out over the mid-Atlantic and Ohio Valley regions for several days, starting on Wednesday. Disease-favorable weather will likely persist in these areas from Wednesday through Friday.
*** 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: None
HIGH RISK areas: None
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:
Southern GA / northern FL
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.
