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Issue:ISSN 2095-1353
           CN 11-6020/Q
Director:Chinese Academy of Sciences
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Your Position :Home->Past Journals Catalog->2017年54 No.4

The effect of juvenile hormone analogue ZR-515 on the larval development of Orthosia songi Chen et Zhang
Author of the article:WANG Jun-Ya1** LI Meng-Lou1 WANG Yun-Guo1 HE Hong1*** WANG Hong-Tao2
Author's Workplace:1. College of Forestry, Key Laboratory of Comprehensive Forestry of Shaanxi Province, Northwest A&F University, Yangling 712100, China; 2. Yongyang Pharmaceutical Co., LTD, Lueyang 724300, China
Key Words:Orthosia songi, juvenile hormone analogue ZR-515, developmental duration, body weight, ingestion, defecation
Abstract:

 [Objectives]  To explore the effect of juvenile hormone on the growth and development of Orthosia songi Chen et Zhang larvae. [Methods]  Fourth, 5th and 6th instar larvae were treated with juvenile hormone analogue ZR-515, and their food consumption, fecal production, pupation rate, and eclosion rate, measured. [Results]  (1) Juvenile hormone analogue ZR-515 prolonged larval development and increased weight, food consumption and fecal production, but it also significantly reduced the rate of pupation and adult eclosion and lead to high larval and pupal mortality. These adverse effects were more obvious at higher hormone concentrations. (2) Hormone treatment had obvious effect on the subsequent growth and development of 4th and 5th instar larvae. (3) Considering the pros and cons of hormone treatment, administering 1 000 ng/μL to the 5th instar is the best approach. [Conclusion]  The results provide a theoretical basis for the large-scale artificial breeding and utilization of O. songi.

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