Plant Health Initiative

Bean Pod Mottle Virus - Scouting

 

Scouting for signs of virus infection

Leaf mottling is a typical symptom of BPMV infection, although it is not always present. Click on image to view a larger version. Photo credit: Palle Pedersen

Check for leaf symptoms on young leaves, which show symptoms more readily than older leaves. Scout for plant symptoms of virus during periods of rapid growth and cool temperatures. Symptoms will be most apparant under these conditions than during dry, hot weather.

 

Scouting for bean leaf beetles

Scout for the first-generation peak in late V or early R growth stage - around early July.

Scout for the second-generation peak during pod-fill stage in August. Read more on scouting for bean leaf beetles»

Overwintering adults feed on emerging seedlings. Their eggs become the first generation of bean leaf beetles. Click on image to view a larger version. Photo credit: Kevin Black, University of Illinois.

 

 

 

Foliar symptoms may be apparant on young, fast-growing leaves during cool weather. Click on image to view a larger version. Photo credit: University of Illinois