多效唑(PP333)是一种新的生长延缓剂,它对各种果树都有明显的抑制生长作用。叶面喷布是多效唑的主要施用方法之一。它的优点是效果反应快,施用后一般在5～10天内效果就能反应出来,因此易为人们所采用。为了进一步降低生产成本,节省用工,我们对多效唑与几种常用农药混用后的相互作用及效果进行了探讨。 Paclobutrazol (PP333) is a new growth retarding agent that has significant inhibitory effects on various fruit trees. Foliar spray is one of the main application methods of paclobutrazol. Its advantage is that the effect of fast response, after the application is generally 5 to 10 days the effect will be able to react out, it is easy for people to adopt. In order to further reduce production costs and save labor, we discussed the interaction and effect of PP333 with several commonly used pesticides.