【摘要】 通过对危害云南富民杨梅的拟果蝇(D.simulans)室内饲养,研究了其世代历期、成虫产卵规律和产卵量。结果表明:①在室内T=19.0~25.2℃、Rh=67.4%~84.7%条件下,拟果蝇(D.simulans)卵历期为0.7 d,幼虫历期为4 d,蛹历期为4.9 d,单个成虫饲养,历期为3.9 d,世代历期为13.5 d。②在室内T=19.0~25.5℃,Rh=55.2%~82.3%条件下,配对饲养成虫寿命为46.3d,是单个成虫饲养寿命的11.9倍;一对成虫有效产卵量为735.2粒。③成虫羽化后1~2 d开始产卵,产卵期间,共有3次产卵高峰,卵量分别为47.6粒、50.2粒、43.8粒;羽化后2~17 d内的产卵量为整个生育期产卵量的52.2%。更多还原

【Abstract】 In Lab,through rearing D.simulans,the main pest of Myrica rubra in Fumin,Yunnan,we studied its generation span,the regularity of oviposition and the number of oviposition.The results showed:(i) Under the condition of T=19.0-25.2 ℃ and Rh 67.4 %-84.7 %,the generation span of D.simulans was 13.5 d by single reared,and the adult stage,egg,larva,pupa were 3.9,0.7,4,4.9 d,respectively.(ii) Under the condtion of T=19.0-25.5 ℃ and Rh=55.2 %-82.3 %,the generation span of D.simulans was studied by pair(♀and♂) reared,the adult stage is 46.3 d,which was 11.9 times to the adults stage of single reared,the number of oviposition is 735.2.(iii) The adults started to oviposit after eclosion 1-2 d.There were three oviposition peaks in oviposition period,and the numbers of oviposition were 47.6,50.2 and 43.8.The number of oviposition of eclosion after 2-17 d was 52.2 % to the number of oviposition in whole laying stage.更多还原