本文应用主分量和多种性分析法,探讨了苹果害虫防治与昆虫群落演替。结果表明,自然生态园物种多、数量大,分布较均匀;化防生态园物种少、数量大,分布不均匀;综防生态园物种多、数量少,分布均匀。多种性以自然生态园最大,综防园次之,化防园最小。主分量分析还表明了引起苹果园群落演替的主要昆虫类群及它们的变动规律。 In this paper, principal components and multi-analytic approach were applied to explore the pest control and insect community succession in apple. The results showed that there were many species, large numbers and even distribution in the natural ecological park. There were few species, large quantities and uneven distribution in the ecological anti-ecological park. A variety of natural ecological park to the largest, second against the park, the smallest anti-Park. Principal component analysis also indicates the major insect groups that cause the succession of apple orchard communities and their variation.