苄氯菊酯会杀死臭虫吗？金宝搏官网登录金博宝188充值（2021更新）

Permethrin is a synthetic chemical，，，，a pyrethroid, designed to mimic the action of natural extracts taken from chrysanthemum flowers. Chrysanthemums originally came from China. They were first mentioned by Confucius sometime around 500 BC. They were brought to Japan in the 4th Century AD for their medicinal properties and first introduced to Europe in 1688.菊花的杀虫特性已有150年以上。

苄氯菊酯攻击昆虫的中枢神经系统。它会产生肌肉痉挛，导致瘫痪和死亡。它对昆虫的毒性远比对包括人在内的哺乳动物更具毒性。昆虫不能像哺乳动物那样快地将其分解，因此它以其原始形式保持更长的损害。

Permethrin can be used in liquid form, powders, dusts, aerosols, and sprays. It is used in flea collars, cattle ear tags, and spot treatments on dogs. There areover 1400 products containing permethrinthat are registered by either the Food and Drug Administration or the Environmental Protection Agency.

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根据人类研究发表在国家科学院出版社，，，，permethrin is one of the least toxic insecticides to human beings that there is. It is far safer than有机氯，，，，organophosphorus (organophosphates)，，，，和methylcarbamate比其他拟除虫菊酯（例如cypermethrin和fenvalerate, also known as esfenvalerate。

Although it is unquestionably one of the safest pesticides on the market today, there is no such thing as a 100% safe pesticide. Children, because of their smaller body mass, are more susceptible than adults but the risk is very low.

Permethrin has been tested on some birds, animals, and fish。It is extremely toxic to fish and amphibians, whether freshwater or saltwater. It is also extremely toxic to beneficial insects such as bees. Birds are not generally susceptible to permethrin except in aerosol form.

Dogs may display some aberrant behaviors as a result of permethrin exposure (at high doses) and cats, also at high doses, could possibly die. Most wildlife has not been clinically tested for permethrin toxicity and their reaction(s) to it are unknown.

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Permethrin’s effects on the environment are slim。它非常强烈地与土壤结合，并不能很好地溶解在水中。一旦进入土壤，它就会在几周内分解。正确使用时，对植物没有危险，可能会直接喷在其上以保护它们免受昆虫的破坏。

Up until now, you might be excused for thinking permethrin is the cat’s meow. It’s safe, it’s been around a long time, it’s a known quantity, etc., etc. And you’d be right. But then we run into a problem known asinsecticide or pesticide resistance。

Insecticide resistance develops in the general population of a species of insect when a pesticide is overused or used improperly, leading to the emergence of insects who have a natural resistance or immunity to that insecticide.

叫做founder effect它的工作原理：在一个或两个单独的虫子具有对该农药具有自然遗传性的区域中喷洒了农药。所有其他人都死了，那些耐药的虫子是唯一剩下的虫子。

然后，他们是繁殖，将遗传抗性传递给后代的人。最终，随着该物种中越来越多的虫子死亡，耐药种群会增长，直到它们成为主要的菌株。

那时，害虫防治技术人员开始注意到，当他们喷洒一个一直有效的可信农药的区域时，突然间这行不通。

客户投诉涌入，技术人员开始向制造商轰炸“更好的东西”的要求。农药的耐药性已在普通人群中占据，农药公司必须开始研究新的农药，以取代不再起作用的农药。

Bed bugs are highly resistant to permethrin和it no longer has any lasting effect on their population when it is used alone. Using it in combination with other pesticides improves its effectiveness but only to a point. For the most part, you should assume it is pointless to use permethrin against bed bugs.

我们在这个问题上不可知。有好,年代olid reasons for paying a professional pest control company to do it for you. There are equally good reasons to do it yourself. The main difference is the cost.

一家专业的害虫防治公司将为您每间客房收取几百美元的费用，以进行臭虫工作。原因是这是劳动密集型的努力。在六到八个星期的时间内，需要花费大量时间和几次访问才能完全消除您家中的臭虫。金宝搏官网登录金博宝188充值尽管付钱给公司进来并用农药治疗，但您每次到达房屋都需要做很多事情。

If you decide to save money by spraying and treating the house yourself, you’ll still have to do all those things each time before you spray, so regardless of who does the actual spraying, you’re going to be doing a lot of prep work.

这项准备工作必须顺便完成，或者很有可能无法成功地消除臭虫，您会浪费很多钱。金宝搏官网登录金博宝188充值

If you decide to do the treatment yourself, you’ll still have to spend a lot of money getting all the equipment and chemicals necessary for spraying, including some safety gear. It will be cheaper than paying the pest control company, but not as much as you would think. If you want to see what you’re letting yourself in for, take a look at our自己动手杀死臭虫指南金宝搏官网登录金博宝188充值then you can make up your mind if it is worth it.