萹蓄俗称猪牙菜,又称地蓼、扁猪牙、道生菜、鸟蓼、萹竹、踏不死,属蓼科一年生草本植物。萹蓄广泛分布在全国各地,东北、华北分布较多,在黑龙江普遍发生。主要为害小麦、大麦、蔬菜、油菜、花生、果园、棉花、烟草及苗圃等农作物,其对花生危害较重,一般造成花生减产8%~20%。一、形态特征萹蓄茎自基部分枝,平卧地上或斜上伸展,有时直立,一般株高10~50厘米。叶互生,具短柄;叶片狭椭圆形或披针形,先 萹 Save commonly known as pig toothpick, also known as Polygonum, flat pig teeth, Road, lettuce, Polygonatum, bamboo, not die, is an annual Polygonaceae herbs. Pian savings widely distributed throughout the country, northeast, north China more distributed in Heilongjiang generally occur. Mainly crops such as wheat, barley, vegetables, rapeseed, peanuts, orchards, cotton, tobacco and nurseries harms peanuts hardest and generally reduces peanut yields by 8% to 20%. First, the morphological characteristics 萹 stems from the base of branches, lying on the ground or oblique extension, and sometimes upright, the general plant height of 10 to 50 cm. Leaves alternate, with short stems; leaf blade narrowly elliptic or lanceolate, first