近年来水稻免少耕栽培应用面积大,减少了对野荸荠地下球茎的机械损伤,导致危害加重。野荸荠为多年生莎草科荸荠属杂草,对水分要求较高,低洼积水田发生较重。植株具细长的匍匐根状茎,茎端膨大生成球状或扁球状块茎,球茎顶部生有数个突出的长0.5~1厘米的芽;地上部茎秆丛生,直立,呈圆柱状,高90~100厘米,直径0.4~0.7厘米,中空、光滑,茎秆内每隔2~4厘米有隔膜分开,茎秆干枯后表面显现节和纵条纹。叶退化,仅 In recent years, the cultivation area of ​​rice has been reduced, so as to reduce the mechanical damage to the underground bulbs of the wild chestnut and increase the harm. Wild water chestnuts is a perennial sedge, water chestnut is a weed, higher water requirements, low-lying paddy fields occurred heavier. Plants with slender creeping rhizomes, stem ends expanded to produce spherical or flat globular tubers, bulbous top has a few prominent 0.5-1 cm long buds; aboveground stems clumps, erect, cylindrical, 90 ~ 100 cm, 0.4-0.7 cm in diameter, hollow, smooth, every 2 to 4 cm in the stem separated by a septum, stalk surface after the dry section and vertical stripes. Leaf degeneration, only