123312-89-0
![123312-89-0 结构式](/CAS/GIF/123312-89-0.gif)
基本信息
吡嗪酮
吡蚜酮
拒嗪酮
拒嗪酮/吡蚜酮
(e)-4,5-fihydro-6-methyl-4-((3-pyridinylmethylene)amino)-1,2,4-triazin-3(2h)-one
PLENUM
PYMETROZIN
PYMETROZINE
PYMETROZIN PESTANAL, 250 MG
1,2,4-Triazin-3(2H)-one, 4,5-dihydro-6-methyl-4-(E)-(3-pyridinylmethylene)amino-
pymetrozine (bsi, pa e-iso)
PYMETHROZINE
(E)-4,5-Dihydro-6-methyl-4(3-pyridylmethyleneamino)-1,2,4-triazin-3(2H)-one
pymetrozine (ISO) (E)-4,5-dihydro-6-methyl-4-(3-pyridylmethyleneamino)-1,2,4-triazin-3(2H)-one
6-Methyl-4-(pyridin-3-ylmethylideneamino)-2,5-dihydro-1,2,4-triazin-3-one
物理化学性质
安全数据
常见问题列表
吡蚜酮pymetrozine是瑞士原诺华公司1988年开发的,属于吡啶类或三嗪酮类杀虫剂。吡蚜酮可以用于蔬菜、小麦、水稻、棉花、果树等多种作物,几乎对所有类型的刺吸口器害虫,如甘蓝蚜、棉蚜、麦蚜、桃蚜、小绿斑叶蝉、褐飞虱、灰飞虱、白背飞虱、甘薯粉虱及温室粉虱等都有防控作用。
Homoptera
吡蚜酮属于吡啶类或三嗪酮类杀虫剂,是全新的非杀生性杀虫剂,最早由瑞士汽巴嘉基公司于1988年开发,该产品对多种作物的刺吸式口器害虫表现出优异的防治效果。利用电穿透图(EPG)技术进行研究表明,无论是点滴、饲喂或注射试验,蚜虫或飞虱一接触到吡蚜酮几乎立即产生口针阻塞效应,立刻停止取食,并最终饥饿致死,而且此过程是不可逆转的。因此,吡蚜酮具有优异的阻断昆虫传毒功能。尽管目前对吡蚜酮所引起的口针阻塞机制尚不清楚,但已有的研究表明这种不可逆的“停食”不是由于“拒食作用”所引起的。经吡蚜酮处理后的昆虫最初死亡率是很低的,昆虫“饥蛾”致死前仍可存活数日,且死亡率高低与气候条件有关。试验表明,药剂处理3h内,蚜虫的取食活动降低90%左右,处理后48h,死亡率可接近100%。
吡蚜酮对蜜蜂、鱼类等水生生物、家蚕有毒,施药期间应避免对周围蜂群的影响,蜜源作物花期、蚕室和桑园附近禁用。养育稻田禁用,远离水产养殖区施药,禁止在河塘等水体中清洗施药器具。
Pymetrozine, a fast-acting and selective inhibitor of aphid feeding. In-situ studies with electronic monitoring of feeding behaviour. Pymetrozine, a pyridine azomethine compound, represents a novel insecticide with a selective activity against homopteran insects. It acts in a unique way: aphids are not knocked down on contact but seem to die of starvation. This implies an effect of Pymetrozine on feeding behaviour. The aim of the present work is to elucidate how and at which step Pymetrozine interferes with the complex mechanisms underlying phloem feeding. The effect of Pymetrozine, applied in various ways, on different phases of stylet penetration and feeding activity of individual aphids is studied using the Electrical Penetration Graph technique (EPG). Initial choice experiments indicated that Pymetrozine does not have a deterrent or antifeedant action. Topical application (150 ng/mg fresh weight) inhibits stylet insertion into the plant. When injected, less than 30 ng/mg is sufficient to produce the same effect. When Pymetrozine is systemically applied via plant spraying or root uptake, aphids started feeding normally. After some time, however, they withdrew their stylets from the phloem and walked around with unaffected locomotion. At low doses aphids eventually recovered and resumed feeding. High doses, however, irreversibly disrupted feeding and prevented stylet reinsertion. Aphid motility is not affected up to an estimated haemolymph concentration of 1 mM Pymetrozine. Aphids which eventually stopped feeding on Pymetrozine-treated plants showed EPGs with distorted salivation/ingestion patterns.
吡蚜酮低毒,对天敌影响小,仅作用于刺吸口器害虫。该化合物对皮肤和眼睛均无刺激,且无致突变性。对哺乳动物毒性很低,对于鸟类、鱼类、蜜蜂等也有很好的安全性。