辣椒粘菌病在我市未曾发现过。1985年4月下旬,我们在本市江北农场露地定植的辣椒苗中第一次发现了粘菌病害。辣椒患病后,轻则叶片正反面及叶柄上附着一层粘菌分泌物,妨碍辣椒的正常生长;重则叶片干枯,整株死亡,死亡率达15—20％,造成严重缺苗。土壤表面、地膜里外层都有此粘菌分布。辣椒粘菌病除为害辣椒外,还为害茄子、南瓜、黄金瓜以及杂草等,症状与辣椒相似,是国内尚未报道过的病害。 一、症状 粘菌首先在叶片正反面形成淡黄色小颗粒,然后从叶尖、叶缘向内扩展蔓延,形成一层无定形的菌胶团,覆盖整片叶片。在双目扩大镜下观察,菌胶团似起伏不平的“沙 Pepper slime mold was not found in our city. In late April 1985, we first discovered slime mold disease in the pepper seedlings planted in the open farm of Jiangbei Farm in this Municipality. Pepper is sick, ranging from positive and negative leaves and petiole attached to a layer of myxo secretions, hinder the normal growth of pepper; weight is dry leaves, the whole plant died, the mortality rate of 15-20%, resulting in severe lack of seedlings. The surface of the soil, mulch in the outer layer of this myxomycete distribution. Pepper slime mold disease in addition to peppers, but also harmful eggplant, pumpkin, yellow melon and weeds, symptoms and peppers similar to the disease has not yet been reported in China. First, the symptoms of sticky bacteria first in the positive and negative blades to form small yellow particles, and then spread from the tip, leaf margin inward expansion to form a layer of amorphous bacteria micelles, covering the whole leaf. Observed in the binocular magnifying lens, micelles like ups and downs of the "sand