Vegetable Crops News

Bean Beetle Eradication?

Last summer the wasp parasite Pediobius was released in the student gardens at the University of Wisconsin - Madison for control of Mexican bean beetle (see MBCN Vol. 2, No. 9). The beetle had been a devastating pest on bean plants in these gardens for years some people even gave up growing beans entirely. Early this summer local gardeners reported they had yet to find any leaf damage or any beetle larvae or adults. They didn't want to be too optimistic, but were hoping that the wasp releases the year before completely eliminated this isolated population of Mexican bean beetle. A team of researchers searched the gardens in early August and were unable to find any beetles either.

- Susan Mahr, University of Wisconsin - Madison

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