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新疆阿勒泰地区额尔齐斯河沿岸为水旱轮作区。蒲草(Typha angustifolia L.)是该区稻、麦田的主要杂草,危害严重。1983年5月作者在本团四连小麦地,发现一种嗜食蒲草的昆虫,经鉴定为蒲草楔象(Sphenophorus sp.)。 生活史及习性:蒲草楔象在本地三年发生两代和部分第三代,以不同龄期幼虫在土中或蒲草根茎中越冬。入土深3～18厘米,以5～12厘米居多。5月中旬,当气温上升16.8℃,地表下5厘米地温9.7℃时,越冬幼虫开始活动,5～7天后开始取食蒲草根茎。6月上旬
The Irtysh River in the Aletai region of Xinjiang is a water and drought rotation area. Typha angustifolia L. is a major weed in rice and wheat fields in this area and is seriously endangered. In May 1983, the author found a herbivorous insect in the quadrupeds of the group, identified as Sphenophorus sp. Life history and habits: Pucao wedge like three generations in the local three generations and part of the third generation to different ages larvae in the soil or Pu grass rhizome winter. Deep into the soil 3 to 18 cm, mostly 5 to 12 cm. In mid-May, when the temperature rose 16.8 ℃, ground surface temperature of 5 centimeters 9.7 ℃, overwintering larvae began to move, 5 to 7 days after feeding Pursina rhizome. Early June