摘要
桂北稻区早稻白背飞虱主害代发生早、发生量大,是优势种群;晚稻田受害虫源来自本地早、中稻田间残留和9月回迁虫源,以褐飞虱为主。稻飞虱的预测预报主要靠灯诱、田间虫情系统观察、两查两定并结合苗情、气象条件的分析等进行经验预测。稻飞虱的防治主要采取确定主攻对象,兼治其他害虫;主抓第一个若虫高峰期用药防治;交替使用高效、低毒、低残留无公害农药;施药前深灌水、开厢喷药等方法。
Rice whiteback planthopper is a dominant population in early rice, which occurred early and heavily in rice production area in Guilin City, Guangxi. Brown planthopper, the main pest happened in the late rice, mainly came from the remnants of early rice, middle-season rice and the return-migrated planthopper in September. The forecast of rice planthopper mainly depends on lamp attracting, systematic investigation of field pests＇ behavior, two-survey-and-two-decide methods combined with the analysis of seedling growth and weather conditions. On controlling rice planthopper, the main pests should be confirmed and controlled with concurren control of the others, to concentrate on spraying the pesticide in the first period of nymphae to hold the pest population, to spray the high-effective and low-remnant pesticide alternately, to irrigate in deep-depth before spraying, and to spray the pesticide with the rows grouping in the field.
出处
《广西农业科学》
CSCD
2007年第5期536-538,共3页
Guangxi Agricultural Sciences
关键词
稻飞虱
发生规律
防治策略
rice planthoppers
occurrence law
control tactics
