FORECAST SUMMARY: Monday, June 25:
*** Disease Update - 25 June *** We have the first report of blue mold in Maryland. There are several outbreaks in southern Anne Arundel county. The most serious infection is the result of infected transplants from NC. Two other outbreaks, one weak and one moderate, are likely due to airborne transport. This source joins the forecasts immediately. We also have an update from KY. Blue mold is widely established at low levels in nine counties in north-central sections of the state. Up to this time, poor growing conditions have made the existing plants poor hosts for blue mold. As growing conditions improve, disease activity is likely to increase.
*** Unsettled weather is expected near the southern Appalachian Mountains Monday and Tuesday. *** A cut-off Low in the middle and upper levels of the atmosphere now sits over the southern Appalchian Mountains. It will move slowly west during the next two days. Highly favorable weather will lie under and just east of the Low. Mixed conditions for disease development will be found in the Southeast and parts of the lower mid-Atlantic and Ohio Valley regions. Dry, unfavorable weather is expected for the upper mid-Atlantic areas. On Monday... potential disease development is concentrated near the mountains, as most other areas experienced a good bit of solar exposure. There is HIGH RISK for the central mountains of TN and NC. There is Moderate Risk for the other mountain regions of NC and TN, plus southwest and extreme southwest VA. Low Risk elsewhere. On Tuesday.... there is HIGH RISK for the central NC mountains, the central and northern mountains of TN, and extreme southwest VA. There is Moderate Risk for central and eastern NC, south-central VA, northwest NC, southeast KY, northern KY, southwest OH, southeast IN, and the growing areas of southern GA and northern FL.
*** We strongly encourage growers to monitor their plants for signs of disease. Diligent scouting and prompt reporting of blue mold are essential if one wishes to derive maximum benefit from the services we provide. ***
TK
HIGH RISK areas: Central NC mountains, central and northern mountains of TN
Blue Mold Active in the Plant Bed and Greenhouse (click on small image for larger image)
What should one look for?
(Red = New, 1 to 7 days; Blue = Active, > 7 days; Green = Old)
Climate Outlooks and Epidemic Prognoses
Current Sources:
Previous Sources:
Papantla, Veracruz, Mexico
Tepic, Nayarit, Mexico
Uvalde, Texas
D'Hanis, Texas
Corpus Christi, Texas
Pinar del Rio, Cuba
***** 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.