Wiktionary
procymidone
n. A pesticide often used for killing ferns and nettles.
Wikipedia
Procymidone
Procymidone is a pesticide. It is often used for killing unwanted ferns and nettles, and as a dicarboximide fungicide for killing fungi, for example as seed dressing, pre-harvest spray or post-harvest dip of lupins, grapes, stone fruit, strawberries. It is a known endocrine disruptor ( androgen receptor antagonist) and to interfere with the sexual differention of male rats. It is considered to be a poison.