By 2013, a group of us became convinced that weevils help promised to combat giant salvinia.

在2013年，我们小组证实象甲虫对管控槐叶萍确实有帮助。

Today, we use an integrated approach to manage salvinia, including a very small and unique insect from Brazil.

今天，我们用一种综合的方法来防治槐叶萍，这就包括使用产自巴西的象甲虫。

You can kill it by spraying chemicals and government officials are, but some volunteers are also fighting salvinia naturally.

你可以用喷洒化学试剂来杀死它们，当地政府就是这么做的，但是当地民众选择用生物方法来消灭它们。

This doesn't involve people fighting people, but people fighting giant salvinia, a fern from Brazil that's causing a lot of problems in other parts of the world.

这不是人与人之间的战争，而且人与巨型槐叶萍之间的战争，这种蕨类植物原产于巴西，在世界上很多地方造成了很多问题。