Rice planthoppers is a kind of major rice pests at Hezhou City.In last decade, its large-occurring frequencies of main harm generation and hypo-harm generation have an aggravating tendency.

• 摘要稻飞虱是贺州市水稻重要害虫之一，近十年来主害代大发生频率及次害代发生频率均有加重的趋势。