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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->2016年53 No.4

Effect of the heavy metals Cd2+and Ni2+on the calling behavior ofOstrinia furnacalis (Lepidoptera: Crambidae)
Author of the article:CAO Hong-Mei1, 2** WEI Hong-Yi1***
Author's Workplace:1. College of Agronomy, Jiangxi Agricultural University Nanchang 330045, China; 2. Jiangxi Research Institute of Sericulture and Tea, Nanchang 330202, China
Key Words:Ostrinia furnacali, Cd2+, Ni2+, calling behavior, calling rate, average calling duration
Abstract:

 [Objevtives]  To explore the potential impacts of the heavy metals Cd2+ and Ni2+ in polluted farmlands on the calling behavior of herbivorous insects. [Methods]  Neonate larvae of the Asian corn borer (ACB), Ostrinia furnacalis (Guenée), were fed artificial diets containing the heavy metals Cd2+Ni2+ and Cd2+-Ni2+ at a concentration of 5 mg/kg, and a control diet without any heavy metals, under laboratory conditions. Female calling behavior of three successive generations was then monitored and compared. [Results]  Ingestion of Cd2+ and Ni2+ affected calling percentage, peak mating time, and calling duration, in all three generations of O. furnacalis. The largest decrease in calling percentage relative to the control was observed in the second generation, and the least decrease, and even the opposite effect, was observed in the third generation. The peak calling time of second generation females in treatment groups was similar to that of those in the control group, but that of first and third generation females differed from the control group. The average calling duration of surviving females decreased from the first to the third generation. Compared to the longest calling duration (4.89 h) recorded in control females, the maximum calling duration (5.56 h) was recorded in the first generation of the Ni2+-treatment group during the third scotophase. The shortest calling duration (3.08 h) was observed in the second generation of the Cd2+-treatment group during the second and third scotophase. [Conclusion]  The calling behavior of O. furnacalis is affected by the ingestion of the heavy metals Cd2+ and Ni2+.

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