The landscaping contractor reported canker on several oak trees near the office parking lot.

景觀承包商回報，辦公室停車場附近有幾棵橡樹出現潰瘍病。

Our shipment of apple saplings was rejected at customs after inspectors found canker on the bark.

我們那批蘋果樹苗在海關檢查時被發現樹皮有潰瘍病，因此遭到退運。

The insurance claim covers orchard losses caused by canker, according to the email from our agent.

根據保險業務員寄來的電子郵件，這份理賠涵蓋因潰瘍病造成的果園損失。