It was better to put clove around coix to defend against harmful insect and its effective storage period could be more than one year.

• 丁香对赤拟谷盗各龄幼虫有致死作用，但不同龄期的幼虫对丁香的敏感度不同，龄期越小的幼虫，死亡率越高，全部个体死亡所需的时间越短；