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为害甘蔗的金龟子在广东珠江三角洲主要有突背蔗龟(Alissonotum impressicolle Arrow;)又名陷纹黑金龟子,俗称蔗龟。在国内分布于广东、广西、福建、云南和台湾等地,广东则以顺德、中山、番禺和东莞等基围田为多,成虫为害幼苗,造成枯心,引起缺株枯心苗率严重的可达50％以上,一般亦达10～20％;幼虫、咬食成长蔗茎和秋荀的地下根、茎及芽,不但影响分蘖,还造成甘蔗倒伏,使甘蔗减产10～20％。由于近年来甘蔗植期提早,药剂种类的增加,防治方法上亦有了新的发展,过去一向沿用的防治方法生产上已甚少采用,且一
Sugarcane chafers damage in the Pearl River Delta in Guangdong are the main sugarcane (Alissonotum impressicolle Arrow;), also known as the trapped black beetle, commonly known as sugarcane turtle. In Guangdong, Guangxi, Fujian, Yunnan and Taiwan, Guangdong is dominated by the basal fields of Shunde, Zhongshan, Panyu and Dongguan. Adult insects damage the seedlings and cause the withered heart, resulting in a serious shortage of dead seedlings. Up to more than 50%, generally up to 10 ~ 20%; larvae, bite the growth of cane stems and underground roots, stems and shoots of autumn Xun, not only affect the tillering, but also caused the lodging of sugarcane, so that 10 ~ 20% of sugar cane. Due to the sugarcane planting earlier in recent years, an increase in the types of medicines, prevention and control methods have also been a new development in the past has always been the method of prevention and control has been rarely used, and one