回顾杀菌剂的发展历程,在大批内吸性杀菌剂出现以前。杀菌剂多为残效期比较短的保护品种。它们对于潜育期比较短、再侵染次数比较多、病程长的病害,以通用方式一次施药,是难以达到预期防病效果的。随着农药加工技术的进展,农药采用“控制释放技术”,可适当地延长某些现有药剂的残效期。但是对于杀菌剂,这样成功的例子还很少。近年来,在由非内吸性杀菌剂向内吸性杀菌剂发展过程中,一批杀菌有效成份本身性质稳定或内吸性强,很少受外界环境因素影响的长效杀菌剂应运而生,並在病害防治的实际应用中,显示出一定的优越 Review of the development of fungicides, before the emergence of a large number of systemic fungicide. Bactericides mostly residual short-term protection of species. They are relatively short for the incubation period, the number of re-infection more, longer duration of the disease, a common way of application, it is difficult to achieve the desired effect of disease prevention. With advances in pesticide processing technology, pesticides use a “controlled release technique” that can extend the residual effect of some existing agents appropriately. But for fungicides, there are few examples of such successes. In recent years, from the non-systemic fungicide to the development of systemic fungicides, a number of bactericidal active ingredients of their own nature or stability strong absorption, little affected by environmental factors outside the long-acting bactericide came into being , And in the practical application of disease prevention and control, showed some superiority