黑龙江省寒地水稻面积约 1 70多万 hm2 ,水稻发生的病虫害主要有叶鞘腐败病、纹枯病、恶苗病、稻瘟病、潜叶蝇、稻负泥虫、稻蝗、稻螟蛉等 ,水稻常年因病虫为害减产 1 0 %～ 30 %。前人对水稻病虫害防治研究虽已取得了一定的成效 ,但都只是从单一的病虫害防治上探讨 ,以致年年 Heilongjiang Province, the cold paddy rice area of ​​about 1 70 million hm2, the main pests and diseases occurred in rice sheath rot disease, sheath blight, diarrhea, rice blast, leaf miner, rice negative mud, rice locust, rice borer, Perennial damage to rice and pests cut 10% to 30%. Although some achievements have been made in the prevention and control of rice pests and diseases, previous studies have only explored the prevention and treatment of pests and diseases so that the annual