马齿苋俗称马荠菜,别名长命菜、马齿菜、马齿草、马苋菜、马蛇子菜、马尿苋、酱板草、瓜子菜、五行菜,属马齿苋科一年生草本植物。马齿苋广泛分布于全国各地,在黑龙江三江平原普遍发生。主要为害玉米、高粱、谷子、大豆、花生、芝麻、绿豆、甘薯、南瓜、西瓜、甜瓜、烟草、甜菜、棉花、药材、果园以及豆类、瓜类和茄科蔬菜等农作物,其对辣椒危害较重,一般造成辣椒减产13%~30%。一、形态特征马齿苋茎伏卧或先端斜上,圆柱形,淡绿色或紫红色,稍肉质,自基部分 Purslane commonly known as shepherd’s purse, alias long-life dishes, horse teeth dishes, horse teeth grass, amaranth, horse snake vegetables, horse urine amaranth, sauce board grass, melon seeds vegetables, five-line vegetables, . Purslane is widely distributed throughout the country, occurred in the Sanjiang Plain in Heilongjiang Province. Mainly harmful crops such as corn, sorghum, millet, soybean, peanut, sesame, mung bean, sweet potato, pumpkin, watermelon, melon, tobacco, sugar beet, cotton, medicinal materials, orchards and vegetables such as beans, Heavy, generally caused by pepper production by 13% to 30%. First, the morphological characteristics purslane stem lying or apex oblique, cylindrical, pale green or purple, slightly fleshy, from the base part