Curly Top Virus |
Jeff Schalau, Yavapai County Cooperative Extension Agent has
identified cucumber mosaic virus and curly top virus as affecting vegetables in
the Verde Valley. You can get more
information by checking out this “Backyard Gardening” article. (August 1, 2012)
Beet leafhoppers are the source of curly top virus and are
common in our area. When a plant
is infected the leaves pucker and are stunted. The leaves curl and roll upward and the main leaf petiole
curves downward. Leaves look
leathery and the veins turn purple while the areas between the veins
yellow.
Cucumber Mosaic Virus |
Cucumber mosaic virus can infect tomatoes also. Aphids spread the virus. Leaves become mottled and yellow. New leaves become twisted and curl
downward and develop a “shoestring” look.
Plants become stunted and produce only small quantities of fruit.
In both cases once the problem is identified, the plants
should be removed immediately. Do
not compost the plants. The
viruses are not carried in the soil so you can replant where the disease plant
was growing. Keeping weeds down
may also help prevent the disease.