We know this and the Lord himself told us so: it is a net with good fish and bad fish, a field with wheat and darnel.

上主也曾亲自说：教会是一张装有好鱼和坏鱼的鱼网，也是一块长有麦子和莠子的田地。

There are some filamentous endophytic fungi living in darnel (L. temulentum) and producing temuline which results in the nerve system poisoning or death of human being and live stocks.

内也存在丝状内生真菌，产生毒麦碱，引起人和动物神经系统中毒，严重的甚至会死亡，同时能诱发部分黑麦草属植物发生盲种病。