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- Title
双尾新小绥螨种群取食猎物偏好性.
- Authors
朱安迪; 苏杰; 陈静; 李海强; 张建萍
- Abstract
【Objective】 Artificial diet could play a role in artificial rearing and population keeping of natural enemy insects by adding nutrients. In this study, the artificial diet adding influence of predation of N. bicaudus were tested among several predatory mite lab strains from different experience of feeding. The objective was to evaluate the artificial diet for predatory mite of lab-strains in artificial rearing and releasing in the field.【Method】 Three strains of N. bicaudus (1 fed by natural prey; 2 fed by alternative prey; 3 fed by artificial diet) were tested on two different conditions (with/without artificial diet). We observed the predation and selectivity of predatory mite in plexiglass chambers. Prey preference and influence coefficient were used to analyze the effect of artificial diet on predation of N. bicaudus.【Result】 After adding artificial diet, thefeeding rates of N. bicaudus to alternative prey (T. putrescentiae) were decreased. Differently, the adding of artificial would not interfere the feeding rates of N. bicaudus to natural prey (T. turkestani). The predation of N. bicaudus to T. turkestani was the highest when they fed on natural prey among all strains, when there is no artificial feed, the feeding rate can reach 83.33%, when artificial feed is provided, the feeding rate can reach 79.33%. Similarly, the predation of N. bicaudus to T. putrescentiae was the highest when they fed on alternavitive prey among all strains, when there is no artificial feed, the feeding rate can reach 63.33%.【Conclusion】 Artificial diet could provide nutrition for N. bicaudus in field to keep the population of predatory mite in lab which would not interfere the control effect on T. turkestani. In addition, artificial diet could help to relieve stress of prey in the artificial rearing of predatory mite by providing extra nutrition. The feeding experience of N. bicaudus was very important for selection and predation of predatory mite.
- Publication
Xinjiang Agricultural Sciences, 2021, Vol 58, Issue 6, p1138
- ISSN
1001-4330
- Publication type
Article
- DOI
10.6048/j.issn.1001-4330.2021.06.019