杀幼虫的

The inactivation of chironomid larvae in water supply systems was experimented with environment degradable vitamin K3,its main component 2-methyl-1,4-naphthoquinone,and their congener menadione triamintriazine bisulphite.

采用易被环境分解的维生素K3、其基本成分β-甲基萘醌和同系物三氨基三嗪甲萘醌亚硫酸盐，对在给水系统中出现的4龄摇蚊幼虫进行了杀生实验。

Purified Ricin revealed high toxicity to mouse, but had no any toxicity to Prodenia litura Fabricius larvae.

动物实验表明该蓖麻毒蛋白对小白鼠有较强的毒性，但对斜纹夜蛾幼虫无毒杀作用。

Field experiments demonstrated that efficacy of 30% dichlorvos and omethoate for Caloptilia dentata was over 80%, for Drosicha corpulenta was 95.9% and Psylla willieti 96.4%. For Parathrene tabanifomis, Anoplophora glabripennis, Apriona swainsoni and Panonychus ulmi also gained perfected efficiency, and injection dosage of 2.0ml/cm φ for Myzus persicae obtained 100%result, for Eriococcus lagerostioemiae which damage Punica gianatum the result was 92.96%. In all, the efficiency of 30% diohlorvos · omethoate control of most pests was better than bisultap, decis, acephate, nicotine and avermectin, etc.

田间防效结果表明30%敌畏·氧乐对元宝枫细蛾的防治效果可以达到80%以上，对草履蚧和槐木虱防效分别大于95.9%和96.4%，对白杨透翅蛾幼虫、危害新疆杨和合作杨的光肩星天牛幼虫、危害国槐的锈色粒肩天牛幼虫、危害苹果的榆全爪螨等可达到理想防效，当施药剂量为2.0 ml/cmφ时对桃蚜的防效达100%，对危害石榴的紫薇绒蚧防效可达92.96%以上。30%敌畏·氧乐对大多数害虫的控制作用优于杀虫双、敌杀死、乙酰甲胺磷、烟碱和阿维菌素等。

In order to understand the mechanism of the insecticidal fraction F3-28 from the extract of Periploca sepium bark. The effect of F3-28 on the activities of protease, trypsin-like, chymotrypsin-like, lipase and amylase of the 5th larvae of Mythimna separata and Agrotis ypsilon were studied.

为了研究杠柳根皮中主要杀虫活性成分F3-28的作用机理，以载毒叶碟法饲喂小地老虎和东方粘虫5龄幼虫，分析试虫中肠摄食F3-28后蛋白酶、类胰蛋白酶、类胰凝乳蛋白酶、淀粉酶、脂肪酶的活性变化。

Among them, fungi of Hyphomycetales were dominant. The pathogenicity test of Beauveria amorpha and Verticillium indicum to larvaes of Cerura menciana and Parnops glasunowi were tested. The average pathogenical effect of Beauveria amorpha c...

选取其中的多形白僵菌和印度轮枝菌，分别对林业害虫杨二尾舟蛾、杨梢叶甲幼虫进行杀虫活性试验，多形白僵菌的平均杀虫效果高于印度轮枝菌 16 。4 %。

C.fatigans to Deltamethrin had a high resistance level in different regions of Jiangxi Province;The resistance to DDVP and Acetophenate showed apparent; The resistance to Bassa were not obvious.

摘 要 目的：探讨我省不同地区致乏库蚊对化学杀虫剂的抗药性现状。方法：采用浸渍法测定致乏库蚊幼虫的LC50。结果：不同地区致乏库蚊对溴氰菊酯均达到相当高的抗性水平；对敌敌畏和三氯杀虫酯的抗药性明显；对仲丁威的抗药性尚不明显。

And Aphelenchoides besseyi with distinct effects; the fermentation liquid of the bacterial strain has higher poisonous activity to second instar larva of Heterodera glycines, and can remarkably restrain cyst hatching; the treatment of fermentation liquid with different diluted concentration is significantly different from the treatment of sterile water; the insecticidal effects of stock fermentation solution can reach above 90%, and the effects of greenhouse experiment are obvious; at the same time, the bacterial strain can remarkably poison the Meloidogyne spp.

该菌株的发酵液对大豆胞囊线虫二龄幼虫具有较高的毒杀活性并显著抑制胞囊孵化，不同稀释浓度发酵液的处理和无菌水处理有显著差异，发酵原液的杀线虫效果可达到90％以上，温室防效试验效果明显。同时该菌株对根结线虫Meloidogyne spp。

However, they have their respective shortcomings in mosquitocidal spectrum, persisting and resist-mosquito management. In this research, the mosquitocidal toxin genes cry4Ba and cry11Aa from Bacillus thuringiensis and btx gene from Bacillus sphaericus were co-expressed.cry4Aa,cry4Ba and cry11Aa genes were also co-expressed with btx gene seperatedly and in combination.The constructed recombinants had a high toxicity against susceptible and resistant mosquito.

本研究将苏云金杆菌以色列亚种的杀蚊毒素基因cry4Ba和cry11Aa与球形芽胞杆菌的二元毒素基因btx两种杀蚊菌的杀蚊毒素基因进行了重组，将Bti杀蚊毒素基因cry4Aa， cry4Ba， cry11Aa及Bs的杀蚊毒素基因btx单独或组合表达，所得工程菌株对敏感和抗性库蚊的毒力均有提高，不仅提高了杀蚊毒力，扩大了杀蚊谱，而且部分克服了蚊幼虫对Bs的抗性。

The fusion protein was prepared and purified to feed larvas of Prodenia litura and Phanerotoma planifrons to evaluate its insecticidal effects.

对融合蛋白进行纯化，通过口途径饲喂瓜绢螟和斜纹夜蛾幼虫，以检测目的蛋白对两种虫的毒杀作用。

These results indicated that YieldGard could provide good controls to Oriental armyworm and protect maize well from the damage.

这些结果说明转cry1Ab基因玉米YieldGard 对粘虫各龄幼虫有很高的杀虫作用和田间控制效果，同时能有效保护玉米免受危害。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了