Reduced stands and yields often result as this insect feeds on seedling plants. Adult feeding on pods results in roughened lesions and reduced quality. Distribution Bean leaf beetle occurs primarily in the southeastern states. It ranges north to Canada and west to Kansas and New Mexico. Management Planting beans so that germination occurs between the 2 generations of adult beetles is helpful.
Rapid growth compensates for some damage.
Chemical control consists of applying foliar insecticides or using a granular insecticide in furrow at planting. Control practices for the Mexican bean beetle will also control the bean leaf beetle. Use low rate of Sevin on small plants. There is not a waiting period with Sevin on beans. The use of brand names and any mention or listing of commercial products or services in this publication does not imply endorsements by the North Carolina Cooperative Extension Service nor discrimination against similar products or services not mentioned.