梨小食心虫成虫行为节律研究  

Behavioral rhythms of the oriental fruit moth,Grapholita molesta (Busck)(Lepidoptera:Tortricidae)

作　　者：张国辉[1] 仵均祥[1] 

机构地区：[1]西北农林科技大学植物保护学院,植保资源与病虫害治理教育部重点实验室,应用昆虫学重点实验室,陕西杨凌712100

出　　处：《西北农林科技大学学报（自然科学版）》2012年第12期131-135,共5页Journal of Northwest A&F University(Natural Science Edition)

基　　金：农业部公益性行业(农业)科研专项(201103024)

摘　　要：【目的】研究梨小食心虫成虫行为节律,为开展梨小食心虫化学生态学研究及其综合治理奠定基础。【方法】在人工气候箱(温度(24±0.5)℃、相对湿度(70±10)%、光周期为15h光期和9h暗期)条件下,系统观测了梨小食心虫成虫羽化、交配及产卵行为节律。【结果】梨小食心虫成虫的羽化具有明显的昼夜节律,主要发生在光期05:00-10:00这个时段,此时成虫的羽化数量占总羽化数量的90%以上,其中以05:00-06:00羽化率最高,与其他时段差异显著;成虫的求偶交配行为多发生在羽化后第3天,呈"一"字形交配,单次交配持续时间为11～35min,平均为22.07min,成虫交配活动主要发生在17:00-21:00,交配率超过90%;梨小食心虫雌成虫的产卵节律与其交配节律颇具相似性,其产卵活动也主要发生在17:00-21:00,该时段所产卵量达到总产卵量的87.43%,显著高于其他时段。【结论】梨小食心虫成虫的羽化、交配及产卵行为具明显的生物节律,其中羽化行为主要发生在上午05:00-10:00,交配和产卵行为主要发生在傍晚17:00-21:00。【Objective】 Behavioral rhythms of the oriental fruit moth,Grapholita molesta（Busck）,were studied in order to provide a theoretical reference for the chemical ecology and integrated management of G.molesta.【Method】 The emergence,mating and oviposition behaviors of G.molesta were investigated with a 15 h∶9 h（L∶D） light cycle at temperature of（24±0.5） ℃ and RH of（70±10）% in the laboratory.【Result】 Results indicated that G.molesta emergence had a significant diel rhythm.90% of G.molesta emerged in 05：00-10：00 am of photophase,especially,the highest emergence rate occurred in 05：00-06：00 am.The calling behavior of G.molesta mainly occurred from the 3rd days after emergence.Adults of G.molesta mated with a copulatory posture of Chinese character of one.The single adult mating duration was between 11-35 min,with a mean value of 22.07 min.More than 90% of mating occurred in 17：00-21：00.pm;The oviposition rhythm of G.molesta was the same as the mating rhythm,87.43% female adults oviposited in 17：00-21：00 pm.【Conclusion】 The emergence,mating and oviposition behaviors of G.molesta have a significant biological rhythm.Emergence activities mainly occur in 05：00-10：00 am,while mating and oviposition activities mainly occur in 17：00-21：00 pm.

关 键 词：梨小食心虫 成虫行为 羽化 交配 产卵 

分 类 号：Q968.11[生物学—昆虫学] S436.612.29[农业科学—农业昆虫与害虫防治]