虎尾草俗称棒锤草,又名刷子头、盘草,属禾本科一年生草本植物。虎尾草遍布于我国南北各省区,在黑龙江三江平原普遍发生。主要为害薯类、花生、蔬菜、果树、苗圃等农作物,其对花生危害较重,一般造成花生减产5%~13%。一、形态特征虎尾草茎直立或基部膝曲,丛生,株高20~60厘米,径1~4毫米,光滑无毛。叶鞘无毛,背具脊;叶舌长约1毫米,无毛或具微纤毛;叶片条状披针形,长3~25厘米,宽3~6毫米。穗状花序4~10余枚,指状簇生于茎顶,常直立而并拢成毛刷BAOJ I SHU Chloris chlorophyll commonly known as heavy hammer grass, also known as brush head, straw, is a gramineous annual herb. Chloris virgata is found in all provinces and autonomous regions in north and south China and occurs universally in the Sanjiang Plain in Heilongjiang Province. The main damage to potato, peanut, vegetables, fruit trees, nurseries and other crops, the peanut heavier harm, generally reduce peanut yield of 5% to 13%. First, the morphological characteristics Chloris virgata stem erect or base geniculate, tufted, height 20 ~ 60 cm, diameter 1 ~ 4 mm, smooth and glabrous. Leaf sheath glabrous, dorsal ridge; ligule ca. 1 mm, glabrous or with ciliate; leaf blade lanceolate, 3-25 cm long, 3-6 mm wide. Spikes 4 to 10 pieces, finger clusters born in the stem top, often upright and together into a brush BAOJ I SHU