蔗螟是为害甘蔗的主要害虫,在广东珠江三角洲蔗区,主要有黄螟、条螟、大螟三种。甘蔗从下种出苗到收获,整个生长期均受蔗螟为害,甘蔗苗期受害后,造成枯心苗,使有效苗数减少,随之影响后期的有效茎数;甘蔗生长中、后期受害后,轻者造成螟害节,重者造成梢枯(死尾蔗),对甘蔗的产量和质量影响很大,因螟害损失产量一般在10—20％左右,重者可达85％以上。由于甘蔗生长期长,一年才收获一次,蔗螟种类又多,发生为害期长,这为防治好蔗螟 Sugarcane borer is the main insect pest to damage sugarcane, in the Pearl River Delta in Guangdong sugarcane, there are mainly borer, striped borer, Sesamiao three. Sugar cane from the next seedling to harvest, the entire growth period are affected by sugarcane borer, sugarcane seedling damage, resulting in dead heart seedlings, the effective seedlings reduce the number of effective subsequent affect the number of stems; sugarcane growth, the late post-harvest , The light caused by the pest damage, the more severe caused by dead (dead tail cane) on the yield and quality of sugarcane, because the loss of borer yield is generally about 10-20%, in severe cases up to 85%. Due to the long period of sugar cane harvest once a year, sugarcane borer species and the occurrence of a long period of damage, which is to control the sugarcane borer