Plutella xylostella larvae of a strain highly resistant to spinosad were used as hosts to rear the parasitoid Cotesia plutellae. When the parasitoids had developed to the stage of early instar larva, the host larvae were treated with 50 mg/L spinosad on the terga by topical application and then fed with cabbage leaves treated with 50 mg/L spinosad to allow the host larvae and the parasitoid larvae to develop. Three days after treatment, the parasitoid larvae inside the host were collected by dissecting the host larvae. The body fluid of P. xylostella and the bodies of parasitoid larvae were then analyzed with HPLC. Both of the active components, spinosyn A and spinosyn D, of spinosad were detected in the body fluid of host larvae and in the bodies of parasitoid larvae, and the residue concentrations were 2.79 mg/L and 0.94 mg/L in the host and the parasitoid respectively.

以對(duì)多殺菌素高抗的小菜蛾P(guān)lutella xylostella幼蟲(chóng)作為菜蛾絨繭蜂Cotesia plutellae的寄主，待絨繭蜂發(fā)育到1齡幼蟲(chóng)時(shí)亚洲无码黄色网站，將濃度為50 mg/L的多殺菌素點(diǎn)滴到寄主幼蟲(chóng)背板上18禁网站在线播放，隨后讓寄主幼蟲(chóng)取食經(jīng)50 mg/L多殺菌素處理過(guò)的甘藍(lán)葉片，寄主幼蟲(chóng)和其體內(nèi)的蜂幼蟲(chóng)再發(fā)育3天后亚洲综合在线图片，將寄主幼蟲(chóng)解剖取出蜂幼蟲(chóng)国产高潮流白浆A片免费一区二区，用高效液相色譜法對(duì)經(jīng)多殺菌素處理的小菜蛾幼蟲(chóng)體液以及絨繭蜂幼蟲(chóng)勻漿液進(jìn)行檢測(cè)，結(jié)果多殺菌素的2個(gè)活性成分spinosyn A和spinosyn D均被檢測(cè)到黄片vs毛片，兩者的多殺菌素殘留濃度分別是2.79 mg/L和0.94 mg/L亚洲少妇偷拍。

tergum,terga：孢子蟲(chóng)病

tergite, dorsal plate 背板;背片 | tergum,terga 孢子蟲(chóng)病 | termite 白蟻