Mosaic Virus (usually called Tobacco Mosaic Virus) - (Many species)

Mosaic Virus on cucumber Mosaic Virus on corn
              Clemson University, USDA Cooperative                     RJ Rwynolds Tobacco Co. Slide Set, RJ Reynolds Tobacco Co., 
         
Extension Slide Series, www.ipmimages.org                 www.ipmimages.org
            



HOSTS: Beans, celery, corn, cucurbits (cucumber, squash), lettuce, peas, solanaceous crops (eggplant, pepper, potato, tomato), spinach.

DESCRIPTION: This virus causes yellow/green mottling in plant leaves; in new growth it also causes puckering and distortion of leaves.

LIFE CYCLE: Mosaic virus is very persistent. It is spread either through insects or mechanically (such as through infected tools). Infection is rapid, multiplication beginning within minutes. The virus reproduces within the plant cell and disrupts the cell's normal function.

CONTROLS:

Cultural: Grow resistant varieties. Control aphids and cucumber beetles which help spread the virus. Pre-soak seeds in a 0.5% bleach solution.


Missoula County Extension Office; Missoula, Montana 59808 - Updated for 2006