Mexican bean beetle (MBB) is a major insect pest of beans in the Mid-Atlantic region. MBB adults and larvae eat the undersides of bean leaves causing lacing of the foliage. High levels of defoliation can significantly reduce bean yields. Pediobius foveolatus is a small beneficial wasp that will seek out and destroy Mexican bean beetle larvae.

Imported from India, this non-overwintering wasp can suppress MBB to non-damaging levels. Although the Plant Protection Section no longer has a rearing program for MBB, you may be able to get them from the Phillip Alampi, Beneficial Insect Rearing Laboratory.  Certain insects are available for purchase. A USDA permit is required for all interstate shipments.  For more information contac:  Tom Dorsey at 609/530-4192

New Jersey Department of Agriculture, Phillip Alampi Beneficial Insect Laboratory, State Police Drive, West Trenton, NJ

Pediobius foveolatus
stinging Mexican bean beetle larva