JOURNAL OF NANJING FORESTRY UNIVERSITY ›› 2017, Vol. 41 ›› Issue (06): 199-204.doi: 10.3969/j.issn.1000-2006.201610050

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Oviposition behavior of Cyrtotrachelus buqueti Guerin-Meneville

YANG Hua, YANG Wei*, YANG Chunping, CAI Yan, PU Yuanfeng, WANG Fan   

  1. Sichuan Provincial Key Laboratory of Ecological Forestry Engineering in the Upper Reaches of Yangtze River, College of Forestry, Sichuan Agricultural University, Chengdu 611130, China
  • Online:2017-12-18 Published:2017-12-18

Abstract: 【Objective】 This study aimed to explore the patterns of oviposition behavior of Cyrtotrachelus buqueti Guerin-Meneville. 【Method】 We examined the complete oviposition process through laboratory rearing and video recording, and then compared the effects of different species and physiological status of hosts on oviposition behavior. 【Result】 The results showed that the complete oviposition process of C. buqueti included creeping, inactivity, probing, gnawing nidus, ovipositor protrusion, oviposition, and hiding. In the laboratory, the complete oviposition process was observed to last for(69.85±1.64)min. The duration of the component behaviors of the oviposition process were as follows: creeping(25.56±0.79)s; inactivity(45.57±0.70)s; probing(1.19±0.03)min; gnawing nidus(38.51±0.42)min; ovipositor protrusion(8.89±0.19)s; oviposition(2.65±0.05)min; and hiding(23.87±0.74)min. For females ovipositing for the first time, the times spent creeping, inactivity, probing, gnawing nidus, and ovipositing were significantly longer than for those females that had oviposited previously(P<0.05). With the exception of the frequencies of ovipositor protrusion and oviposition, the frequencies of the other oviposition behaviors of inexperienced females were considerably higher compared to those of experienced females(P<0.05). C. buqueti females preferentially selected healthy hosts for oviposition. When females oviposited on healthy bamboo shoots, gnawing nidus, oviposition, and hiding times were considerably longer(P<0.05), and the frequency of all these behaviors was significantly higher(P<0.05)compared with females ovipositing on damaged bamboo shoots. The oviposition time of C. buqueti varied with different hosts. When ovipositing on Neosinocalamus affinis, the creeping, inactivity, and probing times of females were significantly shorter compared with those on the other four examined hosts(P<0.05), and the time for gnawing nidus was the longest((39.37±0.54)min)(P<0.05). The peak of C. buqueti oviposition in the laboratory occurred between the third days to ninth days. 【Conclusion】 The oviposition behavior of C. buqueti was influenced by oviposition experience, and differed significantly on different hosts.

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