识别与危害Identification & damage
种茎不出苗，先挖开缺苗处，看看是否被掏空。本片讲有甘蔗危害记录的白蚁，不把所有白蚁都当害虫。
Where shoots fail to emerge, uncover the planted stem cuttings (setts) and check for hollowed tissue. This guide concerns O. obesus, a termite reported to damage sugarcane; not every termite species is a crop pest.
来源与传播Origins & spread
工蚁从土中巢群出来，沿隐蔽通道接近种茎。泥被只是线索，要同时找到活虫和新鲜取食痕迹。
Workers forage from soil colonies through sheltered passages. Confirm live insects and fresh feeding as well as soil sheeting.
生活史与微观过程Life cycle & microscopic processes
繁殖蚁产生虫卵，卵留在巢内，由群体照料。不要在甘蔗叶面寻找像螟蛾那样排列的卵块。卵孵化后，幼体逐步蜕皮，群体具有不同分工。白蚁没有蛹期，工蚁、兵蚁也不是前后相接的阶段。工蚁咀嚼蔗组织，受害种茎内部可能空虚并混有泥土。只见枯叶上有白蚁，还不能证明它正在损伤活株。
Reproductives produce eggs that are cared for inside the colony. Do not expect moth-like egg masses on cane leaves. After hatching, young termites moult and develop different roles. There is no pupal stage; workers and soldiers are different castes. Workers chew cane; damaged setts can become hollow and soil-filled. Termites on dead leaves alone do not prove damage to living cane.
田间检查与确认Inspection & confirmation
连同受害种茎拍照，记录地块、缺苗范围和土壤水分。留取工蚁和兵蚁供鉴定，别只凭一张照片定种。
Record the sett, field location, missing shoots and soil moisture. Collect workers and soldiers for identification beyond a photograph.
预防、治理与复查Prevention, management & follow-up
播前检查种茎，避用受害材料，并改善适宜的田间水分。处理严重受害种茎后，按当地栽培要求补齐缺苗。需要治理时，请当地植保人员按虫种和危害范围选方案。复查新鲜取食和出苗恢复；用药须符合当地登记标签。
Inspect planting setts, reject damaged stock and maintain suitable moisture. After dealing with damaged setts, restore gaps using local guidance. Choose treatment with local advisers using species and damage records. Recheck feeding and emergence; any pesticide must follow its local label.