Phytopathology (1996) 86, p. S58 (Main et al.)

C.E. Main, T.A. Melton, J.M. Davis, T. Keever and P.B. Shoemaker (1996)
Forecasting the transport of spores and the possible spread of tobacco blue mold
Phytopathology 86 (11 suppl.), S58-S58
Abstract: Blue mold (mildiou) of tobacco (Peronospora tabacina) is a foliar disease disseminated by winds in the planetary boundary layer of the atmosphere. The N.C. Blue Mold Forecast System provides timely information on the future movement of inoculum (spores) within the Southeast and Mid-Atlantic states from documented sources such as infested fields, plant-beds or greenhouses. The trajectory model operates on the NOAH Nested Grid Model (NGM), a member of the family of numerical weather forecast models used nationally by the U.S. Air Resource Laboratory, Silver Springs, Maryland to predict 48-hour weather. A trajectory plots the atmospheric pathway of a "packet" of air containing spores and calculates the temporal position(s) of spore clouds for the 48-hour period after a spore cloud leaves a source site or region. Blue Mold coordinators in S.E. states report new, and important continuing sources to the forecaster at NC State University. A new set of trajectories can be generated each day. The forecast includes a trajectory map together with a climatology describing weather at the source and along the pathway associated with survival. The forecasts are accessible via WWW Internet (http://www.ces.ncsu.edu/depts/pp/bluemold/).

Research topic(s) for pests/diseases/weeds:
population dynamics/ epidemiology

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Peronospora tabacina	Tobacco (Nicotiana tabacum)