【摘要】 用分月扇舟蛾(Clostera anasstomosis)颗粒体病毒(Granulosis virus,简称GV)对杨扇舟蛾幼虫以胃毒方式进行生物测定。结果表明:GV对杨扇舟蛾幼虫感染后的死亡率与病毒浓度呈正相关;1.58×103、1.58×104、1.58×105、1.58×106、1.58×107、1.58×108和1.58×109 PIB·mL-1等7种浓度GV接种分月扇舟蛾幼虫后死亡率分别为7.32%、22.85%、53.61%、67.44%、85.61%、93.19%和97.36%,致死中浓度为1.58×105 PIB·mL-1;接种1.58×109、1.58×108、1.58×107、1.58×106和1.58×105 PIB·mL-1等5种浓度感染幼虫,导致幼虫死亡率大于50%,幼虫致死中时分别为4.08、4.65、5.9、6.89和8.55d。更多还原

【Abstract】 Bioassay on larvae of Clostera anaehoreta with stomach poison by using Granulosis virus(GV)of Clostera anasstomosis was conducted.Result shows that:GV on mortality of Clostera anaehoreta larvae after infection are positively correlated with the concentration virus;after seven concentrations of GV(1.58×103,1.58×104,1.58× 105,1.58×106,1.58×107,1.58×108,1.58 × 109 PIB·mL-1)inoculated with Clostera anasstomosis larvae, the mortality are 7.32%,22.85%,53.61%,67.44%,85.61%,93.19% &97.36%;the median lethal concentration(LC50)is 1.58×105 PIB·mL-1.Five concentrations(1.58×109,1.58×108,1.58×107,1.58×106,1.58× 105 PIB·mL-1)were inoculated on larvae,which lead to the larval mortality being above 50%;the median lethal time(LT50)are 4.08,4.65,5.9,6.89,8.55d.更多还原