论文部分内容阅读
玉米螟测报与防治的研究已经有了相当的历史,也取得了相当的进展。但至今玉米螟仍是玉米生产中的一个大问题。目前存在的主要问题是,尚未充分了解玉米螟种群数量变动的机制和规律,对玉米螟种群动态及其环境因子的调控作用缺乏系统的、量化的研究,使得玉米螟的测报工作难以满足生产上的要求。测报问题,尤其是玉米螟发生量的中、长期预测,已成为玉米生产上急待解决的重大问题之一。显然,如果不掌握玉米螟自然种群发生发展的消长规律,并在此基础上进行准确及时的预测预报,从而正确地指导防治,无论什么样的防治措施都是盲目的。
Corn borer forecast and prevention and control of the study has had a considerable history, but also made considerable progress. But so far the corn borer is still a big problem in corn production. At present, the main problem is that the mechanisms and rules of population changes of corn borer have not yet been fully understood, and there is no systematic and quantitative research on the population dynamics of corn borer and the regulation of its environmental factors. Therefore, it is difficult to meet the requirements for the production of corn borer Request. The medium and long-term prediction of the problem of maize, especially the occurrence of maize borer, has become one of the major problems urgently solved in maize production. Obviously, if we do not grasp the growth and decline of the natural population of corn borer, and on this basis accurate and timely forecasting, so as to correctly guide the prevention and control, no matter what kind of prevention and control measures are blind.