猕猴桃黑斑病一般为害猕猴桃的叶片、枝蔓和果实,严重影响猕猴桃的生长、结果及果实品质。现将该病的为害症状特点和防治要点介绍如下。一、为害症状1.叶片发病初期病叶背面形成灰色绒毛状小霉斑,以后病斑逐渐扩大,呈灰色、暗灰色或黑色绒霉层,小病斑联合成大病斑,整叶枯萎、脱落。在病斑部对应的叶面上会出现黄色褪绿斑,以后逐渐变成黄褐色或褐色坏死斑。病斑多呈圆形或不规则形,病斑部和健康部分界不明显,病叶易脱落。2.枝蔓病部表皮出现黄褐色或红褐色水渍状的纺锤形或椭圆形病斑。 Kiwi black spot disease is generally harmful to the leaves of kiwifruit, vine and fruit, seriously affecting the growth of kiwifruit, fruit quality and results. Now the symptoms of the disease symptoms and prevention points are described below. First, the symptoms of harm 1. The early leaves of disease leaves formed on the back of the gray villous mildew, after the lesion gradually expanded, gray, dark gray or black velvet layer, small lesions combined into a large lesion, whole leaf withered, Off. In the lesion corresponding to the leaves will appear yellow faded green spots, and later gradually become brown or brown necrotic spots. Lesions were mostly round or irregular shape, lesion and health sector is not obvious, sick leaves easy to fall off. 2. Dendritic disease epidermis appear brown or reddish brown water-like spindle or oval lesions.