作　　者： ; ; ; (王慧）;

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》 1996年第2期101-105,共5页

摘　　要： 尼氏钝绥螨喜食二斑叶螨的卵，日均捕食量达２０．６粒，对二斑叶螨若螨的功能反应呈ＨｏｌｌｉｎｇⅡ型。丝瓜花粉饲养下，其发育历期为５．１２５９天。雌雄成螨寿命分别为６０．３３天和５．２９天，日平均产卵量达１．４１粒；而用青杠花粉饲养，其发育历期长达９．５９天，雌雄成螨寿命缩短为３７．１７天和３．８７天，日平均产卵量仅０．８６粒。混合花粉饲养的各项指标居两者之间。内禀增长率和周限增长率大小依次为丝瓜花粉＞混合花粉＞青杠花粉。性比分别为丝瓜花粉２．２９：１，混合花粉１．８６：１，青杠花粉１．６７：１，以益害比１：１５释放于草莓棚内，能有效地抑制二斑叶螨的发生。 Amblyseius nicholsi prefered eggs to other stages of two spotted mite (Tetranychus urticae).Mean number preyed was 20. 6 per day. Its functional response to nymph of T. urticae was shown as Holling Ⅱ. When A. nichosi fed with pollen of sponge gourd, the circle, life span of both female and male,and mean oviposition amount of the mites were 5. 13 days, 60. 33 days, 5. 29 days, 1. 41 egg per day, respectively. But fed with oakery pollen,indices as above were 9. 59 days, 37. 17 days, 3. 89 days,and 0. 86 per day,respectively. Fed with fixed pollen (ratio of gourd to oakery is 1: 9), indices ranged between the gourd's and oakery's. Innate capacity of increase and finite rate of increase of A. nichosi fed with three kinds of pollen were in the following order: goned's>oakery's > fixed pollen's. The ratio of female to male of A. nicholsi showed sponge gourd,2. 29. fixed pollen, 1. 86,oakery, 1. 67. By release in plastic shed,A. nicholsi gives a effective control over two spotted mite on strawberry.

关 键 词： 尼氏钝馁螨 二斑叶螨 繁殖 捕食

领　　域： [农业科学] [农业科学] [农业科学] [农业科学]