害虫化学防治概念的新进展

本文从害虫化学防治的现状和目前的研完进展情况提出了几个趋向性问题:发展特异性缓效型,特别是植物质杀虫剂,以求获得对环境和非靶子生物安全,以及对害虫不易产生抗性的新一代农药,克服过去化学农药的缺点;利用植物与昆虫之间的相互关系,人为地制造不利于害虫生存的条件,而控制害虫种群数量是害虫综合管理法则中所要研究的主要问题;植物对害虫主动防御性的阐明,可以给害虫测报工作给予新的“启示而提高测报准确性;在害虫发生之前人为地“活化”植物的主动防御性而达到所谓“预防性农业”的境界。在“综合性农业”中,害虫管理是和整个农业生态学、生物化学、化学生态学及农作物的高产、优质等相联系,因而,是综合考虑中的因素之一。

Progress in Concept of Chemical Control of Harmful Insects

Based on the existing conditions of chemical control of harmful insects and its progress in the present research,several tendentious problems were advanced in this paper.The slow-redease insecticides with peculiar properties of the botanical ones in particular will be developed in order to obtain the new chemicals to be safe to the enviornment and the non-target living things and to produce no resistance to the harmful insects.Thus,the disadvantages brought about by chemicals herbisides in the past will be covercome.Also,the unfavourable condition can be created for the harmful insects to live by using the relationship between the plants and insects.Therefore,controlling the population of the harmful insects a major problem in the integrates management of them.The interpretation of plants preventing themselves from being attacked by harmful insects will give a clue to the prediction of the harmful insects so as to raise the accuracy of prediciton.Before the outbreak of the harmful insects,the defence system of the plants activated by man can obtain the field of "the preventive agriculture."In the integrated agriculture,the harmful insect management is closely related to the entire agroecology,biochemistry,chemical ecology,and the high quality and high yielding of farm crops,which is one factor to be taken into consideration in the integrated management of them.