稻褐飞虱不同生物型致害特性研究  

Studies on the virulence characteristics of different rice brown planthopper biotypes

作　　者：黄凤宽[1] 韦素美[1] 罗善昱[1] 黄所生[1] 李青[1] 

机构地区：[1]广西农业科学院植物保护研究所

出　　处：《广西农业生物科学》2003年第2期84-88,共5页Journal of Guangxi Agricultural and Biological Science

基　　金：广西青年科学基金(桂科青9811007);广西自然科学基金(桂科自0007002);"十五"国家科技攻关计划(2001BA509B02-08)资助项目

摘　　要：对稻褐飞虱不同生物型致害特性研究结果表明,生物型 对TN1、IR26、Mudgo的致害性均达8.71级以上,对IR36、ASD7、RathuHeenati(R.H)、Babawee(B.W)、Ptb33的致害性均低于4.73级;孟加拉型对TN1、IR26、Mudgo、IR36、ASD7的致害性均达7.68级以上,对R.H、B.W、Ptb33的致害性均低于5.00级;九龙江型对TN1、IR26、Mudgo、IR36、ASD7、R.H、B.W的致害性均达7.38级以上,对Ptb33的致害性为3.68级。若虫期干扰作用控制指数,生物型 在Mudgo上与在TN1上差异不显著,在ASD7上与在TN1上差异亦不显著;孟加拉型在Mudgo、ASD7、B.W上与在TN1上差异不显著;九龙江型在B.W上与在TN1上差异不显著。稻褐飞虱3～4龄若虫取食的选择性,接虫后1～2d,生物型 、九龙江型在TN1、Mudgo、ASD7、R.H、B.W、Ptb33上差异不显著,而孟加拉型对TN1的趋性最强;接虫后3d,生物型 和孟加拉型对Ptb33的趋性最弱,而九龙江型对ASD7的趋性最弱。成虫取食的选择性,接虫后1d,生物型 偏向于TN1、B.W,孟加拉型偏向于TN1、Mudgo、ASD7、Ptb33,九龙江型则对TN1、Mudgo、ASD7、R.H、B.W、Ptb33没有选择性;接虫后2d,生物型 偏向于TN1、Mudgo、ASD7、B.W,孟加拉型偏向于TN1、ASD7,九龙江型偏向于Mudgo、R.H、B.W、Ptb33。成虫产卵选择性,生物型 和孟加拉型在R.The virulence characteristics of different rice brown planthopper biotypes were studied The results indicated that the virulence of biotype Ⅱ to TN1, IR26 ,Mudgo were more than 871 grades,that to IR36 ,ASD7,Rathu Heenati( RH),Babawee( BW), Ptb33 were less than 473 grades;the virulence of biotype Bangladesh to TN1, IR26, Mudgo, IR36, ASD7 were more than 768 grades,that to RH, BW,Ptb33 were less than 500 grades;the virulence of biotype Cuulong delta to TN1, IR26, Mudgo,IR36, ASD7, RH ,BW were more than 738 grades, that to Ptb33 was 368 grade There was no significant differences in the interference index of population control(IIPC) of nymph of biotype Ⅱ fed on Mudgo and TN1, so was the IIPC of that fed on ASD7 and TN1;so was the IIPC of nymph of biotype Bangladesh fed on Mudgo, ASD7 ,BW and TN1;so was the IIPC of nymph of biotype Cuulong delta fed on BW and TN1 After infested one day and two days,there were no significant differences among the selectivities of the third-fourth instar nymphs of biotype Ⅱand biotype Cuulong delta on TN1, Mudgo ,ASD7, BW, Ptb33,those of biotype Bangladesh preferred strongly to TN1After infested three days,those of biotype Ⅱand biotype Bangladesh did not prefer to Ptb33; those of biotype Cuulong delta did not prefer to ASD7 After infested one day,the adults of biotype Ⅱ preferred to TN1 and BW,those of biotype Bangladesh preferred to TN1, Mudgo, ASD7, Ptb33,there were no selectivities of those of biotype Cuulong delta on TN1, Mudgo ,ASD7, RH ,BW ,Ptb33 After infested two days, those of biotype Ⅱ preferred to TN1,Mudgo ,ASD7, BW, those of biotype Bangladesh preferred to TN1 and ASD7,those of biotype Cuulong delta preferred to Mudgo, RH,BW, Ptb33 The adults of biotype Ⅱand biotype Bangladesh did not prefer to ovipositing on RH, those of biotype Cuulong delta did not prefer to ovipositing on ASD7It was indicated that the IIPC of three biotypes on different varieties,the feeding and ovipo

关 键 词：稻褐飞虱 生物型 致害特性 干扰作用控制指数 取食 产卵 

分 类 号：S435.112[农业科学—农业昆虫与害虫防治]