The shipment of oak seedlings was held at customs after inspectors found a defoliator.

檢驗人員發現食葉害蟲後，這批橡樹苗在海關被扣留。

Our insurance claim covers crop losses caused by the defoliator outbreak last spring.

我們的保險理賠涵蓋去年春天食葉害蟲爆發造成的作物損失。

At Monday's meeting, the farm manager presented a plan to control defoliators in the orchard.

在週一的會議上，農場經理提出了控制果園食葉害蟲的計畫。