1，3，5-噁二嗪类衍生物的合成及生物活性研究进展

l,3,5-噁二嗪类化合物具有独特的六元环结构骨架,广泛应用于农药领域。综述了近年来1,3,5-噁二嗪类衍生物的合成及生物活性研究进展,提出了今后的研究方向。     

一批新化学农药及其合成方法概述（下）

3杀虫剂3.1 Cyantraniliprole（溴氰虫酰胺）该杀虫剂为杜邦公司继氯虫苯甲酰胺后,通过将苯环上氯原子变成氰基后新开发的品种,于2006年申请专利[30-31].它的CAS登录号为736994-63-1,代号DPX-HGW86、HGW-86,商品名Cyazypyr.其化学名称为：3-溴-1-（3-氯-2-吡啶基）-4’-氰基-2’-甲基-6’-（甲基氨基甲酰基）吡唑基-5-甲酰胺,结构式如下：     

对药剂敏感性不同的烟蚜体内几种关键性酶活性的比较分析

对吡虫啉和氧化乐果在三明地区和合肥地区烟蚜的毒力进行了测定,并对两地烟蚜的羧酸酯酶、乙酰胆碱酯酶和谷胱甘肽转移酶的活性进行了研究.结果表明吡虫啉对两地烟蚜的生物活性远高于氧化乐果,三明烟蚜对两种药剂的敏感性都比合肥烟蚜的低,三明烟蚜种群的毒力方程b值低,存在一定的异质性;两地烟蚜的羧酸酯酶、乙酰胆碱酯酶活性差异不显著,但三明地区烟蚜的谷胱甘肽转移酶活性显著高于合肥地区烟蚜.     

使用OV-17填充柱进行多种农药产品的同柱气相色谱分析

使用 3%或 5 % OV- 17/ Chrom osorb W AW DMCS(0 .2 5～ 0 .18m m粒径 )为固定相的填充色谱柱 ,探讨了 5 0种有机磷、氨基甲酸酯及拟除虫菊酯类杀虫剂 (包括两种杀虫增效剂 )的同柱气相色谱分析法     

吡虫清一步法合成

一步法合成吡虫清,收率≥80%（以2-氯-5-氯甲基吡啶计）。     

鱼尼汀受体类新型杀虫剂的合成及研究进展

介绍了鱼尼汀受体类新型杀虫剂的开发进展以及这类化合物的作用机理和合成方法,其通过诱导昆虫鱼尼汀受体调控的胞内钙离子释放而表现出杀虫作用,高效而新颖,必将在作物有害生物治理中发挥重要作用,具有良好的发展前景。     

联苯菊酯的应用开发研究综述

The advance and research of bifenthrin is summarized in this Paper. The compound can serve as an insecticide, especially for termites. Two normal preparing routes are provided. And the way bifenthrin treats soil and prerent it from termites is discussed.     

Cytoplasmic cleavage in living zoosporangia of Allomyces macrogynus

We have used the vital fluorescent dye, FM4-64, as a marker of membrane development during zoospore formation in living zoosporangia of Allomyces macrogynus . Membrane development was visualized and documented using standard epifluorescence and laser scanning confocal microscopy. Video-enhanced light microscopy and transmission electron microscopy, using cryopreparation methods, were also employed in this study. In the first 10–12 min after the induction of zoospore formation, only the plasma membrane labelled with FM4-64. During this time, nuclei were strictly located in the cortical cytoplasm with their associated centrosomes positioned immediately adjacent to the plasma membrane ( Lowry & Roberson, 1997 ). Between 12 and 20 min post-induction, increased fluorescence appeared along regions of the plasma membrane adjacent to the nuclei. From these sites, membranes (i.e. cleavage elements) extended laterally within the cortex and then, in conjunction with nuclear migration, rapidly elongated into the sporangial cytoplasm. By 25–35 min post-induction, cleavage elements had ramified throughout the cytoplasm forming a complex, interconnected membranous network. Transmission electron microscopy revealed that cleavage elements were paired membrane sheets with a lumen consisting of an electron opaque, granular matrix. Cleavage elements developed into a highly ordered network by 35–40 min post-induction, which fully delimited zoospore initials into polyhedral-shaped cells. Zoospore discharge occurred between 40 and 50 min post-induction. Our results have shown that cleavage elements undergo four stages of development during zoospore formation in A. macrogynus : (i) development of membrane initials, (ii) cortical extension, (iii) cytoplasmic elongation and ramification and (iv) zoospore initial delimitation.     

不同杀虫剂防治水稻褐飞虱田间药效评价

2013年对褐飞虱进行6种杀虫剂田间防治效果评价。结果表明:施药后5 d和10 d,22%氟啶虫胺腈SC、20%呋虫胺SG、25%噻虫嗪WG、50%吡蚜酮WG对褐飞虱的防效分别为77.9%~90.9%和77.0%~90.5%,20%异丙威EC、25%噻嗪酮WP的防效分别为40.1%~65.9%和20.6%~49.9%。22%氟啶虫胺腈SC、20%呋虫胺SG、25%噻虫嗪WG、50%吡蚜酮WG防效较好。建议在实践中,轮换使用噻虫嗪、吡蚜酮、呋虫胺、氟啶虫胺腈防治褐飞虱。