"hessian fly" 的定义和意义

What is a "hessian fly"?

A hessian fly is a destructive insect pest that infests cereal crops, particularly wheat, by feeding on the plant's sap and causing significant damage. It is named after its resemblance to the color and texture of hessian cloth. The hessian fly poses a serious threat to agricultural production and requires careful monitoring and management to minimize its impact on crop yields.