作　　者： ; ; ; (峗庆才）;

机构地区： 上海农学院园林环境科学系

出　　处： 《上海农学院学报》 1994年第1期9-15,共7页

摘　　要： 本文运用二次通用旋转组合设计方法，研究了束管食螨瓢虫（ＳｔｅｔｈｏｒｕｓｃｈｅｎｇｉＳａＳａｊｉ）、尼氏钝绥螨（ＡｍｂｌｙｓｅｉｕｓｎｉｃｈｏｌｓｉＥｈａｒａｅｔＬｅｅ）、草间小黑蛛（ＥｒｉｇｏａｉｄｉｕｍｇｒａｍｉｎｉｃｏｌｕｍＳｕｎｄｅｖａｌｌ）与桔全爪螨（ＰａｎｏｎｙｃｈｕｓｃｉｔｒｉＭｃＧｒｅｇｏｒ）共存系统捕食量的数学模型，对捕食量模型的分析表明３种天敌中以草间小黑蛛的捕食作用最大；在不同密度组合下，天敌间作用形式不同．最后本文还讨论了不同猎物密度下３种天敌发挥最大控制作用的密度组合． Mathematic model of the number preyed in co-existent. system of Stethorus chengi SaSaji, Amblyseius micholsi Ehara et Lee, Erigonidium graminicolum Sundevall and citrus red mite (Panonychus citri McGregor) was established by composite design of quadratic common rotation of four factors. The regression eqution was given as follows,Y = 17.4287 + 1 .6667P 1 + 0.4167p2 + 0.5000P 3 + 1 1 .2500X - 0.2500P 1 P2 + P 1 X+ 0.3573P2P 3 + 0.1250P2X - 0.1250p3 X - 1 .4821p - 0.9821p - 0.6071P + 3.5179X2.The interaction response surface and the principal component analysis method were used to evaluate predations and interactions in co-existent system. The results showed maximum predation caused by E. graminicolum in three natural enemies, and the way of action among predators varied with combination of their densities. Finally, best combinations of three predators were discussed in different prey densities

关 键 词： 桔园 捕食者 桔全爪螨

领　　域： [农业科学] [农业科学]