dāng / dì / zhèng / fǔ / jí / shí / zǔ / zhī / fáng / zhì / bì / miǎn / chóng / zāi / jì / xù / màn / yán

当地政府及时组织防治，避免虫灾继续蔓延。

The local government promptly organized pest control to prevent the infestation from spreading.