The weather had exacerbated another problem by now: mildew, oidium and…..snails.

到现在，天气加剧了另一个问题：霉，粉……蜗。

The oidium and the snails (which eat the young shoots) had shown up very early, in April, and were generally dealt with effectively right then.

粉蜗（专吃嫩芽）出现的非常早，在4月就见端倪了，并得到了有效的处理。