Key Laboratory of Oasis Agricultural Pest Management and Plant Protection Resources Utilization, Universities of Xinjiang Uygur Autonomous Region, The Key Laboratory of Oasis Eco-agriculture, Xinjiang Production and Construction Group, College of Agriculture, Shihezi University, Shihezi City, Xinjiang, China.
State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China.
J Econ Entomol. 2019 Dec 9;112(6):2604-2613. doi: 10.1093/jee/toz202.
The predatory mite, Neoseiulus bicaudus (Wainstein), is a potential biological control agent against spider mites and thrips. The objective of this experiment was to compare the effects of three diets on the life table of N. bicaudus. The three diets were 1) Tetranychus turkestani (Ugarov & Nikolskii) (Acari: Tetranychidae), the natural prey of N. bicaudus; 2) Tyrophagus putrescentiae (Schrank) (Acari: Acaridae), an alternative prey; and 3) artificial diet primarily consisting of decapsulated shrimp cysts, egg yolk, and honey. The computer simulation was used to project the population growth of N. bicaudus fed on different diets. The preadult developmental time (3.83 d) of N. bicaudus was shortest, and the intrinsic rate of increase (r = 0.2782 d-1) and the net reproductive rate (R0 = 18.98 offspring) were highest when reared on the alternative prey Ty. putrescentiae. The total development time (7.37 d) was longest, and the population parameters were the lowest (r = -0.0081 d-1, R0 = 0.85 offspring) when N. bicaudus was reared on artificial diet. The population projection showed that the population of N. bicaudus reared on Ty. putrescentiae could increase fast. Our results showed that the Ty. putrescentiae was the most suitable prey for mass rearing of N. bicaudus. The artificial diet could not support the N. bicaudus population and needs to be improved.
捕食螨，智利小植绥螨（Wainstein），是一种潜在的防治叶螨和蓟马的生物防治剂。本实验旨在比较三种饲料对智利小植绥螨生活史表的影响。这三种饲料分别是：1）突厥盘腹蛛（Ugarov & Nikolskii）（蜱螨目：叶螨科），智利小植绥螨的天然猎物；2）腐食酪螨（Schrank）（蜱螨目：粉螨科），替代饲料；3）主要由去壳虾卵、蛋黄和蜂蜜组成的人工饲料。本研究采用计算机模拟方法预测了智利小植绥螨在不同饲料条件下的种群增长情况。以替代饲料腐食酪螨饲养的智利小植绥螨的若虫发育时间最短（3.83 天），内禀增长率（r = 0.2782 d-1）和净生殖率（R0 = 18.98 后代）最高；以人工饲料饲养的智利小植绥螨总发育时间最长（7.37 天），种群参数最低（r = -0.0081 d-1，R0 = 0.85 后代）。种群预测表明，以腐食酪螨饲养的智利小植绥螨种群增长迅速。研究结果表明，腐食酪螨是智利小植绥螨大规模饲养的最适宜饲料。人工饲料不能维持智利小植绥螨的种群，需要改进。
