【摘要】 应用二次正交旋转组合设计方法建立3种天敌、2种害虫共存情况下白背飞虱被捕食数量与5个因素相互关系的数学模型。结果表明,3种天敌对白背飞虱被捕食量影响的大小排序为拟水狼蛛>青翅蚁形隐虫>食虫沟瘤蛛,食虫沟瘤蛛与拟水狼蛛、拟水狼蛛与青翅蚁形隐翅虫有负交互作用。更多还原

【Abstract】 Under the coexistence of 3 natural enemies and 2 pests,the mathematical model of interrelationships between the number of Sogatella furcifera preyed upon and 5 factors was established with quadratic rotation-(orthogonal) combination design.Results showed that the order of effectiveness of predators to the number of(S.furcifera) preyed upon was Pirata subpiratica>Paederus fuscipes>Ummeliata insecticeps,there existed negative interactions between U.insecticeps and Pirata subpiratica,Pirata subpiratica and Paederus fuscipes.更多还原