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Continuous rearing of the predatory mite Neoseiulus californicus on an artificial diet

文献类型： 外文期刊

作者： Song, Zi-Wei 1 ; Duc Tung Nguyen 3 ; Li, Dun-Song 1 ; De Clercq, Patrick 2 ;

作者机构： 1.Guangdong Acad Agr Sci, Plant Protect Res Inst, Guangdong Prov Key Lab High Technol Plant Protect, 7 Jinying Rd, Guangzhou 510640, Guangdong, Peoples R China

2.Univ Ghent, Dept Plants & Crops, Lab Agrozool, Coupure Links 653, B-9000 Ghent, Belgium

3.Vietnam Natl Univ Agr, Dept Entomol, Hanoi, Vietnam

关键词： Life table; Phytoseiid mite; Alternative food; Consecutive rearing; Predatory capacity

期刊名称：BIOCONTROL （ 影响因子：3.571； 五年影响因子：3.243 ）

ISSN： 1386-6141

年卷期： 2019 年 64 卷 2 期

页码：

收录情况： SCI

摘要： Neoseiulus californicus (McGregor) (Acari: Phytoseiidae) is one of the most efficient biological control agents of tetranychid mites and is commercially used in various countries around the world. In this study, four artificial diets were tested as an alternative food source for rearing N. californicus, and life table studies were performed to evaluate the nutritional value of the diets. Further, the performance of N. californicus reared for seven consecutive generations on the artificial diet enriched with Ephestia kuehniella Zeller eggs was assessed. The egg and larval periods of N. californicus did not differ among the natural prey (Tetranychus urticae Koch) and artificial diets, but the developmental times of the nymphal stages were significantly longer on any of the artificial diets than on the natural prey. The total fecundity of N. californicus was reduced when the predator was fed on any of the artificial diets as compared with T. urticae (54.33 eggs per female). Among the artificial diets, fecundity of N. californicus was best on a basic artificial diet enriched with E. kuehniella (AD2) (41.32 eggs per female). Moreover, AD2 did not significantly affect the longevity and reproduction of N. californicus females after long-term rearing on this artificial diet. The predation and reproduction capacities of N. californicus reared on AD2 for up to four generations were significantly reduced when the predator was switched to natural prey on the first day, but generally improved from the second to third day on. In conclusion, artificial diets supplemented with an extract of E. kuehniella eggs (20%) may have potential for use in the mass rearing of N. californicus.

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