文献类型：期刊文献

中文题名：不同建群蜂数对松褐天牛肿腿蜂繁育效果的影响

英文题名：Effect of Different Parasitoid Colonies on the Mass Rearing of Sclerodermus alternatusi(Hymenoptera:Bethylidae)

作者：唐艳龙[1] 王丽娜[1] 张彦龙[2] 吴胜勇[1] 王小艺[2] 杨忠岐[2]

第一作者：唐艳龙

通信作者：Zhang, Yanlong

机构：[1]遵义师范学院生物与农业科技学院/贵州省赤水河流域动物资源保护与应用研究重点实验室,遵义563002;[2]中国林业科学研究院森林生态环境与保护研究所/国家林业和草原局森林保护学重点实验室,北京100091

年份：2020

卷号：56

期号：9

起止页码：97-103

中文期刊名：林业科学

外文期刊名：Scientia Silvae Sinicae

收录：CSTPCD;;EI(收录号：20204509458014);Scopus;北大核心:【北大核心2017】；CSCD:【CSCD2019_2020】；

基金：国家自然科学基金青年基金项目(31700573);国家重点研发计划资助项目(2018YFC1200400);贵州省松类有害生物防治工程技术研究中心(黔科合平台人才[2017]5202)。

语种：中文

中文关键词：松褐天牛肿腿蜂;建群蜂数;发育历期;子代数量

外文关键词：Sclerodermus alternatusi;parasitoid colonies;duration of immature stage;brood size

分类号：S763.306.4

摘要：【目的】明确松褐天牛肿腿蜂母蜂数量对子代发育历期和数量的影响,提高人工繁育松褐天牛肿腿蜂的效率。【方法】在恒温恒湿条件下,以麻天牛幼虫为繁殖寄主,观测松褐天牛肿腿蜂母蜂的寄生行为、子代的发育历期和子代数量。【结果】不同建群蜂数对母蜂的寄生行为有影响,表现为随建群蜂数的增加,松褐天牛肿腿蜂母蜂第一次攻击寄主的时间和母蜂的产卵前期均缩短。不同建群蜂数对松褐天牛肿腿蜂子代卵历期无明显影响,但显著影响幼虫历期和蛹历期,表现为随建群蜂数增加,其历期缩短。当建群蜂数为1头时,其幼虫历期最长,平均为9.6天,6头时,其幼虫历期最短,平均为8.5天,相差约1天。雄蜂蛹历期介于18.7~19.7天之间,雌蜂蛹历期平均为20.0~21.5天之间,比雄蜂蛹历期长1~2天。随建群蜂数的增加,松褐天牛肿腿蜂子代雄蜂数、子代雌蜂数和子代总数均显著增加。当建群蜂数为1头时,其子代雄蜂数、子代雌蜂数和子代总数均最少,分别为3.6、51.1和54.6头,至4头时,即显著增加到6.6、83.9和90.4头。松褐天牛肿腿蜂子代性别总体高度偏雌,大多数处理子代雄性比低于10.0%,随建群蜂数的增加,其子代雄性比呈小幅增加趋势。【结论】随松褐天牛肿腿蜂母蜂建群蜂数的增加,其子代发育历期缩短,其子代数量显著增加。增加松褐天牛肿腿蜂母蜂数量,可显著提高繁育效率。
【Objective】Sclerodermus alternatusi was first observed to parasitize the larva of pine sawyer beetle(PSB,Monochamus alternatus)in Yunnan Province in 2010 and has become a potential agent in current biocontrol of PSB.This study investigated their fitness gains associated with different numbers of foundress population in order to enhance the efficiency of mass-rearing of this parasitoid.【Method】The parasitism behavior of foundress,the developmental process and the number of the offspring,brood size,and sex ratio were recorded under six different foundress densities(ranged from 1 to 6)using Thyestilla gebleri as host.【Result】The results showed that both the first attack time on the host and the pre-oviposition time of female were declined with the increase of foundress densities.The duration of egg stage was not significantly different among different foundress densities,while the duration of both larval and pupal stages was gradually decreased as the foundress densities increased.With one foundress,the larval duration was the longest,with an average of 9.6 d,while with 6 foundresses,the larval duration was the shortest,with an average of 8.5 d.The pupal duration of males ranged from 18.7 to 19.7 d in different foundress densities,and that of females ranged from 20.0 d to 21.5 d,1-2 d longer than that of males.Brood size of the parasitoids increased significantly when the number of foundress increased from one to six.The net increments of brood size were approximate 60%as the number of foundress ranged from one to four;however,the further increases in foundress density did not affect the net brood size.The sex ratios of this bethylid wasp were always female biased.The proportions of males in the progeny colonies were less than 10%throughout all experimental treatments and showed no significant differences among treatments,but a slightly increase of sex ratio exhibited in the treatments of higher foundress densities.【Conclusion】These findings suggest that moderate increase of the foundress densities could obtain more offspring in artificially mass-rearing of S.alternatusi.Meanwhile,the breeding durations of each generation can be shortened when more founderesses are inoculated to a host.Our findings provide a new approach to enhance the efficiency of mass-rearing of this bethylid wasp.