褐稻虱是我国南方稻区水稻穗期的主要害虫。防治褐稻虱,必须切实贯彻“预防为主,综合防治”的植保方针。概括各地综合防治的经验是:农业防治为基础,保护天敌压基数,压前控后争主动,合理用药保丰收。具体可归纳为以下五个方面。一、运用抑虫增产的栽培措施首先要合理布局连片种植同品种、同生育期的水稻,尽可能避免“插花”种植,以防止褐稻虱转辗为害,而利于集中防治。在水稻生长期间,必须实行科学的水肥管理,要做到沟渠配套,排灌自如,田间开沟,浅水勤灌,适时烤田,干干湿湿,防止深水漫灌,长期积水,田泥污烂。在合理用肥上,要掌握施足基肥、及时追肥、促控结合的原则,防止封行过早,贪青晚熟。这样就能创造有利水稻生长不利褐稻虱滋生繁育的田间环境,起到抑 Brown planthopper is a major pest of rice heading stage in southern rice in China. For the prevention and control of brown planthopper, we must earnestly implement the policy of plant protection of “prevention first and comprehensive prevention and control”. Summarize the experience of integrated prevention and control all over the country is: based on agricultural control, the protection of natural enemy pressure base, after the pre-press control competition, rational use of drugs to protect income. Specific can be summarized as the following five aspects. First, the use of pest-resistant cultivation measures to increase production First of all, a reasonable layout contiguous planting the same species, with the growth of rice, as far as possible to avoid “flower arrangement” to prevent brown rice louse turn rolling damage, but conducive to focus on prevention and control. During the growth of rice, scientific management of water and fertilizer must be implemented. Ditch facilities, drainage and irrigation facilities, field ditching, shallow ground irrigation, timely baking and wetting should be done to prevent deep-water flood irrigation, long-term water accumulation and mud pollution . In the rational use of fertilizer, to master Shizujifei, timely top dressing, promote the principle of combining control to prevent the premature closure of the envelope, greedy late-maturing. In this way, the field environment conducive to the growth and development of rice can be created,