5种寄主植物对台湾稻螟生长发育的影响  

Effects of five host plants on growth and development of Chilo auricilius Dudgeno

作　　者：凌炎[1] 杨娟[2] 荣燕芳 王国全[2] 黄芊[3] 蒋显斌 龙丽萍[3] LING Yan;YANG Juan;RONG Yan-fang;WANG Guo-quan;HUANG Qian;JIANG Xian-bin;LONG Li-ping(Plant Protection Research Institute,Guangxi Academy of Agricultural Sciences/Guangxi Key Laboratory for Biology of Crop Disease and Insect Pests,Nanning 530007,China;College of Agriculture,Guangxi University,Nanning 530004,China;Rice Research Institute,Guangxi Academy of Agricultural Sciences/Guangxi Key Laboratory of Rice Genetics and Breeding,Nanning 530007,China)

机构地区：[1]广西农业科学院植物保护研究所/广西作物病虫害生物学重点实验室,南宁530007 [2]广西大学农学院,南宁530004 [3]广西农业科学院水稻研究所/广西水稻遗传育种重点实验室,南宁530007

出　　处：《南方农业学报》2018年第4期703-707,共5页Journal of Southern Agriculture

基　　金：国家自然科学基金项目(31560510);公益性行业(农业)科研专项项目(201303017);广西作物病虫害生物学重点实验室基金项目(2016-ST-5);广西农业科学院科技发展基金项目(2015JZ52)

摘　　要：【目的】明确不同寄主植物对台湾稻螟生长发育的影响,为台湾稻螟的预测预报和综合防治提供理论依据。【方法】在温度27.5℃、相对湿度80%、光照L∶D=12 h∶12 h的条件下,用水稻、薏苡、甘蔗、玉米和茭白5种寄主植物分别饲养台湾稻螟幼虫100头,记录幼虫的死亡数、雌雄蛹数、蛹重、蛹长、蛹存活率和雌雄性比;每种寄主植物单头饲养幼虫25头,每天定时观察记录不同寄主植物上每头台湾稻螟幼虫各龄历期和蛹期。【结果】台湾稻螟在水稻、薏苡、甘蔗、玉米和茭白上取食,2龄幼虫至蛹的发育历期依次为10.12、13.00、9.52、14.69和14.96 d,幼虫存活率依次为51.00%、30.00%、27.00%、26.00%和59.00%,蛹存活率依次为68.63%、83.33%、74.07%、53.85%和88.13%,雌雄蛹重分别为4.9、4.1、4.4、4.8、5.0和3.1、2.9、3.6、3.6、3.1 mg/头,雌雄蛹长分别为12.29、11.59、11.75、11.67、11.98和10.71、10.21、10.39、11.37、10.40 mm/头,雌雄虫性比依次为2.00、1.14、0.42、1.60和0.72。【结论】水稻最有利于台湾稻螟生长发育,茭白次之。【Objective】In order to provide scientific basis for prediction and comprehensive control of Chilo auricilius Dudgeon,the effects of different host plants on the growth and development of C.auricilius were studied.【Method】Under the conditions of 27.5℃,relative humidity 80%and illumination L∶D=12 h∶12 h,each one of the five host plants(rice,coix,sugarcane,maize,and water-oat)was pused to feed 100 C.auricilius nymphal.Dead nymphal,pupal weight,pupal length,survival rate and sex ratio were recorded.In addition,25 nymphals were fed separately using each plant mentioned above,and instar duration and pupation date of each nymphal were recorded at the same time of each day.【Result】When C.auricilius were fed with rice,coix,sugarcane,maize and water-oat,duration of the 2nd instar nymphal to pupal were 10.12,13.00,9.52,14.69 and 14.96 d.Nymphal survival rates were 51.00%,30.00%,27.00%,26.00%and 59.00%.Pupal survival rates were 68.63%,83.33%,74.07%,53.85%and 88.13%.The female pupal weights were 4.9,4.1,4.4,4.8,5.0 mg/pupal and male pupal weight 3.1,2.9,3.6,3.6,3.1 mg/pupal.Female pupal lengths were 12.29,11.59,11.75,11.67,11.98 mm/pupal and male pupal lengths 10.71,10.21,10.39,11.37,10.40 mm/pupal.The sex ratios were 2.00,1.14,0.42,1.60 and 0.72.【Conclusion】Rice is the most beneficial host plant for the growth and development of C.auricilius,and water-oat is the second optimal one.

关 键 词：台湾稻螟 寄主植物 生长发育 

分 类 号：S433.4[农业科学—农业昆虫与害虫防治]