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利用化学农药防治病虫害当然很需要,但施用化学农药难于分清“敌友”,在杀死害虫的同时,也毒死了多种害虫的天敌。同时化学农药使用多了,容易造成害虫抗药性,使它们再猖獗起来,而且由于农药残毒造成环境污染,危害人畜的健康。所以单纯依靠化学农药来防治病虫害不是根本办法。许多国家都是把农药防治和生物防治结合起来,而且日益重视生物防治。下面刊载两篇有关生物防治的文章,目的在于引起各级领导和广大职工重视生物防治工作,把我区农场已经取得初步成绩的生防工作进一步提高、发展,使其在农业生产上更好地发挥作用。
Of course, the use of chemical pesticides to control pests and diseases is of course very necessary, but the use of chemical pesticides is difficult to distinguish between “enemy friends”, while killing pests, but also poisoned a variety of natural enemies of pests. At the same time the use of chemical pesticides more easily lead to pest resistance, making them rampant again, but also because of pesticide residues caused by environmental pollution, endanger the health of humans and animals. Therefore, relying solely on chemical pesticides to control pests and diseases is not the fundamental solution. Many countries combine pesticide control with biological control and increasingly attach importance to biological control. The article below contains two articles on biological control aimed at arousing the attention of leaders at all levels and the broad masses of workers to the work of biological control. The prevention and control of biological prevention work that has made preliminary achievements in our farms has been further enhanced and developed to make it better in agricultural production Play a role.