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PARMA ― The mint stem borer has emerged as a threatening pest of Canyon County mint production, and with no insecticides registered to protect the crop, the region’s farmers lack tools to combat it.

At a Glance:

Mint stem borer poses a major pest threat to Canyon County mint fields.

U of I pesticide specialist Marcelo Dimase is leading research for a safe, effective insecticide.

Plinazolin , a Syngenta product, shows promise for controlling the pest.

The Mint Industry Research Council is funding field trials with a $10,000 grant.

Fortunately, University of Idaho ‘s new Extension pesticide specialist, Marcelo Dimase, has prioritized finding an effective insecticide option for mint. Upon identifying a promising product, Dimase will pursue a special loca

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