甘蔗赭色鸟喙象 Otidognathus rubriceps Chevrolat是云南甘蔗上一种新的严重蛀食蔗茎的害虫 ,主要以成虫和幼虫危害蔗茎 ,使蔗株枯死 ,造成减产 ,严重的无收。此虫 1年发生 1代 ,以成虫在土中越冬 ,成虫有假死性 ,会飞翔。 5月底 6月初成虫出土 ,交尾产卵 ,9月下旬终见 ;7～ 9月幼虫危害最盛 ,9月上旬至 11月上旬老熟幼虫入土 8～ 15cm做茧化蛹。在胶泥土中虫口较多 ;宿根年限越长受害越重 ;不同甘蔗品种受害差异大。防治措施蔗稻轮作 ;缩短宿根年限 ;选种抗虫品种 ;人工捕杀 ;10月上中旬用水淹灌蔗地 ;6月中下旬结合培土每公顷用 3%甲拌磷或呋甲颗粒剂 75kg,到 7月上旬末和 8月上旬初再结合其它害虫的防治 ,用 4 0 %水胺硫磷乳油 10 0 0倍稀释液喷雾 ,防治效果达 90 %左右 Otidognathus rubriceps Chevrolat, a new serious insect-eating cane stem on sugarcane in Yunnan Province, mainly endangers cane stems by adult and larvae, causing the cane to die, resulting in reduced yield and serious yield loss. This pest occurs 1 generation a year, in order to adult overwinter in the soil, adults have lethality, will fly. At the end of May and early June, the adults unearthed and spawned at the end of September. The larvae were most endangered in July-September. The mature larvae were infested from 8 to 15 cm in early September and early November to make cocoon pupation. In the clay soil more insects; Perennial perennial heavier victims; different varieties of sugar cane differences. Prevention and control measures rotation of sugarcane rice; shorten the perennial age; selection of insect-resistant varieties; artificial killing; mid-October flooded cane land; mid-late June combined with soil per hectare with 3% phorate or furfural granules 75kg, To the early July and early August early combination of other pest control, with 40% methamidophos EC 100 dilution of the spray, the control effect of about 90%