阿维菌素和Bt作物的发展,使一时冷却的生物农药又热了起来,也为农药的开发展示出一条新途径。然而,把一些植物的初始萃取物、一些发酵产物宣传得神乎其神,“纯天然绿色农药”、“纯生物制剂”、“不含任何化学物质”、“无毒副作用”、“可代替污染严重的化学农药”等字眼不断见诸报纸、杂志和广告。笔者认为,如此炒作和包装有失妥当,应当以客观、科学的态度来看待生物农药。不可否认,化学农药中确实有些产品急性毒性很高,使用不当会引起人畜中毒和残留超标。随着人类环保意识的不断增强,不少农药已经或正在退出市场,这表明化学农药在不断进步,与时俱进地改变自己。当前,人们在研究中已充分吸收生物技术的长处,对生物源农药也进行精细的修饰,以其为先导“仿生”研发出多种系列产品,一些高效、微量、安全的品种不断问世,化学农药正向世人展示美好的面容。生物农药技术同化学手段相协调,相互促进才是今后农药发展之正道。 The development of avermectins and Bt crops has heated up the once-cooled biological pesticides and also shows a new way for the development of pesticides. However, some of the plant’s initial extracts, some of the fermented products propaganda devastating, “pure natural green pesticides ”, “pure biological agents ”, “does not contain any chemical substances, ” “,” Can replace the pollution of chemical pesticides “and other words continue to see newspapers, magazines and advertising. The author believes that such speculation and packaging inappropriate, should be an objective and scientific approach to biological pesticides. It is undeniable that there are indeed some products in chemical pesticides acute toxicity, improper use can cause human and animal poisoning and residues exceeded. With the continuous enhancement of human environmental awareness, many pesticides have been or are being withdrawn from the market, indicating that chemical pesticides are making progress and changing with the times. At present, people have fully absorbed the advantages of biotechnology in research and finely modified bio-sourced pesticides. A series of products have been researched and developed with the guide of ”biomimetic". A number of high-efficient, traceable and safe varieties have been developed Chemical pesticides are showing a beautiful face to the world. Biopesticide technology with chemical means to coordinate and promote each other is the right way for the future development of pesticides.