【简 介】斜纹夜蛾学名Prodenia litura (Spodoptera litura) Fabricius，鳞翅目，夜蛾科。别名莲纹夜蛾、莲纹夜盗蛾。分布在全国各地。
【寄 主】油菜、甘蓝、花椰菜、白菜、萝卜等十字花科蔬菜、茄科、葫芦科、豆科蔬菜、芋、薄荷、葱、韭菜、菠菜以及农作物达99科290种以上。
【为害特点】幼虫食叶、花蕾、花及果实，严重时可将作物吃光。在甘蓝、白菜上可蛀入叶球、心叶，并排泄粪便，造成污染和腐烂，使之失去商品价值。
【形态特征】成虫体长14－20mm，翅展35－40mm，头、胸、腹均深褐色，胸部背面有白色丛毛，腹部前数节背面中央具暗褐色丛毛。前翅灰褐色，斑纹复杂，内横线及外横线灰白色，波浪形，中间有白色条纹，在环状纹与肾状纹间，自前缘向后缘外方有3条白色斜线，故名斜纹夜蛾。前后翅常有水红色至紫红色闪光。老熟幼虫体长35-47mm，头部黑褐色，从中胸至第9腹节在亚背线内侧有三角形黑斑1对，其中以第1、7、8腹节的最大。
Cluster caterpillar
DESCRIPTION
Cluster caterpillars (Spodoptera litura Walker) is an international pest. The eggs of this species are normally laid in an irregular furry mass on the underside of a leaf of a foodplant. The young Caterpillars are smooth skinned with a pattern of red, yellow, and green lines, and with a dark patch on the mesothorax, later turn into dark thorax. Then become brown with three thin yellow lines down the back: one in the middle and one each side. A row of black dots run along each side. The Caterpillar burrows into the soil below the plant for several centimetres and there pupates without a cocoon. It will pupate successfully if 0.5 cm. of sand is provided in the container.
HOST PLANTS
The pest eat nearly any herbaceous plant, including: Elephants Ear, Lettuce, Cabbage, Horsetail She Oak, Beetroot, Peanuts, Geranium, Leek, Cotton, Banana, Fuchsias, Strawberry, Tomatoes, and many other garden plants.
DAMAGE
They initially only eat the flesh of their food leaves, leaving the veins intact. Later, as they grow, they eat whole leaves, and even flowers and fruit.
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