This past week a grower called to ask about a recurring problem,
We’ve got a problem that hits us every year in our snap beans that we grow to sell at the local farm markets. Around June we experience heavy losses due to Mexican Bean Beetle. Somebody mentioned using parasitic wasps as a possible control agent.
What do you know about this and how do we go about getting them?
Mexican bean beetle (MBB) has been a serious bean pest for decades in the Mid-Atlantic region, causing intolerable yield reductions. Fortunately, the Phillip Alampi Beneficial Insect Rearing Laboratory at the NJ Department of Agriculture rears small wasps (Pediobius foveolatus) that parasitize young Mexican bean beetle larvae before they can cause significant defoliation damage. The NJDA program saves about 21 tons of pesticide applications that would cost farmers about $450,000 a year. [Read more…]