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通过对历史资料分析及调查研究,总结了防城港市沿海稻区稻飞虱迁入发生规律及1993年以来发生新特点。如稻飞虱灯下、田间始见期提早,迁入峰次多,主害代为害峰次增加、为害期延长、严重发生的频次明显增加等;影响当地稻飞虱发生的主要因素有迁入量、食料条件、气候因子、田间小气候、地理、天敌及稻飞虱翅型、化学防治措施等。
Through analyzing and investigating the historical data, the law of the migration of planthoppers in the coastal rice-growing areas of Fangchenggang City and the new features that have occurred since 1993 are summarized. For example, under the rice planthopper lamp, the initial seepage period in the field was earlier, the peak times were more, the peak times of the main damage were increased, the damage period was prolonged, the frequency of serious occurrence was significantly increased, etc. The main factors affecting the occurrence of rice planthoppers in the area were relocation Intake, feeding conditions, climatic factors, microclimate, geography, natural enemies and rice planthopper wing type, chemical control measures.