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
stinging Mexican bean beetle larva
50 Harry S. Truman Parkway, Annapolis, MD 21401