Plant Disease Home Page
The information in these notes is updated periodically. Feel free to link to our website. ... [... more]
NC State University Coop Extension |
Control Of Tobacco Mosaic Virus On Flue-Cured Tobacco
Although primary infection can occur anytime during the growing season, the most critical time is during transplanting. Plants infected at this time from any of the overwintering sources will show mosaic symptoms in ... [... more]
NC State University Coop Extension |
Granville Wilt
Crop Rotation - Crop rotation must be the basis on which Granville wilt management programs are established. This practice is perhaps the most essential thing that growers can do to minimize losses due to Granville ... [... more]
NC State University Coop Extension |
Rhizoctonia Diseases In Tobacco Greenhouses
Target spot. This disease is usually observed as small foci when the canopy is already formed (high humidity and high temperature). Symptoms on leaves begin as small, round, water-soaked spots about 2-3 mm in ... [... more]
NC State University Coop Extension |
Pythium Root Rot In Tobacco Greenhouses
Five species of Pythium have been identified as possible pathogens affecting tobacco transplants. Pythium myriotylum, P. dissotocum, P. irregulare, P. volutum, and P. spinosum in greenhouses. P. myriotyilum and P. ... [... more]
NC State University Coop Extension |
Collar Rot In Tobacco Greenhouses
Effect of leaf injuries. During the transplant production period, injuries other than clipping may occur. Injuries may predispose tobacco seedlings to infection by S. sclerotiorum. The most commonly observed ... [... more]
NC State University Coop Extension |
Tobacco Disease Management In Greenhouses
Another supplemental system, the polytube, has been adopted by only a few transplant producers but is widely used in the vegetable transplant industry. This system is slightly more expensive than the HAF but probably ... [... more]
NC State University Coop Extension |
Brown Spot
Brown spot management should fit into the overall disease management program. The goal is to delay disease build-up. Rotation with another crop will allow time for the tobacco debris to decay therefore, leaving ... [... more]
NC State University Coop Extension |
Black Shank
Black shank is among the most destructive and widespread of all tobacco diseases in North Carolina. Black shank first appeared in the United States in 1915 and was first reported in North Carolina in Forsyth County ... [... more]
NC State University Coop Extension |
