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稻飞虱是冀南稻区三大主要害虫之一(稻飞虱、二化螟、三化螟)。由于近年来施肥水平的提高和栽培密度的增加,造成田间阴蔽;再者飞虱对有机农药和菊酯类农药产生抗性,致使稻飞虱猖獗成灾。稻飞虱繁殖快,对水稻危害严重,其中灰飞虱除危害水稻外,还可传播水稻矮缩病和条纹叶枯病;小麦丛矮病和玉米矮缩病等。稻飞虱的具体防治措施:一、农业防治1.合理施肥、灌水。重施底肥,适时追肥,避免水稻后期贪青徒长。田间灌水避免长期深水淹浸,适时落干,控制水稻徒长,恶化飞虱生存条件,以
Planthopper is one of the three major pests in southern Hebei rice area (rice planthopper, rice stem borer, rice borer). Due to the increase of fertilization level and the increase of planting density in recent years, the field was shaded. In addition, planthopper resistance to organic pesticides and pyrethroids resulted in rampant planthoppers. Planthoppers reproduce fast, serious damage to rice, which in addition to the harm of rice planthoppers, but also spread of rice dwarf and stripe leaf blight; wheat dwarf and corn dwarf disease. Specific control measures of planthoppers: First, agricultural prevention and treatment 1. Rational fertilization, irrigation. Heavy basal fertilizer, timely top dressing, to avoid the late rice long greedy. Field irrigation to avoid long-term deep-water inundation, timely dry-out, controlling the growth of rice plants, to exacerbate the living conditions of planthoppers