辣椒整个生育期均有落叶、落花现象,特别在定植以后,是辣椒减产的重要原因之一。去年,湖南省益阳市赫山区辣椒病害发生率达20％-100％不等,给菜农带来极大的损失,轻者生长受阻,开花结果少,重者整株叶片落光,植株枯死。 一、发生原因 主要是叶柄基部和花梗塞部组织产生了离层,与着生组织自然分高脱落。产生这种情况的外界条件,主要有营养、光照、温度、水分、有害气体、激素及病虫危害等。辣椒在整个生育期中陆续出现落叶现象。有时在结果中后期,植株中、下部少量黄叶、老叶 Pepper has deciduous throughout the growing period, falling phenomenon, especially after planting, is one of the important reasons for the production of pepper. Last year, the incidence of pepper diseases in Heshan District, Yiyang City, Hunan Province was between 20% -100%, causing great losses to vegetable farmers. The growth of light was blocked and the flowering result was less. First, the main reason is petiole base and peduncles Department of tissue produced from the layer, and natural tissue with high off. The external conditions that cause this situation are mainly nutrition, light, temperature, moisture, harmful gases, hormones and pests and diseases. Pepper in the whole growth period after another leaves phenomenon. Sometimes in the late results, plants, the lower part of a small amount of yellow leaves, old leaves