Area of impact: Leaves

Description: Reddish and yellow leaves which may be torn, twisted or have swollen veins. Stunted growth can also occur.

Pathogen involved: Virus

Timing/Conditions: Transmitted by leafhoppers or by rubbing between plants.

Contributing factors: Conditions favoring leaf-hoppers increase risk of infection. Overwinters in johnsongrass so proximity to infected johnsongrass also increases risk of infection.

Management practices: Plant tolerant or resistant hybrids and control johnsongrass with herbicides.