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Pole bean plants are getting eaten by something, little bites all over. Now leaves are turning yellow and drying up. What do you think the problem is. They get plenty of water.

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A

I am not positive.  It sounds as if it might be mites, which can be a real problem on green beans.  However it may also be the Mexican bean beetle.  It would help if you could send me a close-up of the plant and the leaves, especially the underside.
If it is mites (which are very small and hard to see) you can apply an insecticidal soap making sure to spray the underside of the leaves.  Do this about every four to five days. 
If it is the Mexican bean beetle (larva are orange and look like a pin cushion), you can go to the nursery and get a registered insecticide such as sevin or malathion. 

Posted on 25 Jul 2008

Jerry Goodspeed
County Director, Horticulture Agent, Weber County

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