Potato leaf blight mainly damages its leaves. In most cases, the senescent leaves in the lower part of the plant are in the early stage of growth. At the beginning, the leaves will show greenish brown necrotic spots, and sometimes they will infect the stems. Unshaped gray-brown necrotic spots, brown spots will be produced in the diseased part later in the disease. Let's take a look at the prevention and control of potato leaf blight! Harmful symptoms The potato leaves are infected, starting from the edge of the leaf or the tip of the leaf, forming a green-brown necrotic spot at the beginning, and then gradually developing into a nearly round to V-shaped taupe to red-brown large necrotic plaque, with no obvious ring pattern, the outer edge of the lesion Often chlorotic yellowing, and finally the diseased leaves are necrotic, sometimes producing a little dark brown spots on the lesions (ie, the conidia of the bacteria). The stems are infected, forming an amorphous gray-brown necrotic spot, and brown spots can be produced in the diseased part later. Occurrence Potato leaf blight is caused by the infection of the fungus, the fungus, the genus P. The bacteria overwinter in the soil with sclerotia or hyphae with diseased tissues, and can also overwinter on other host residues. When the conditions are suitable in the following year, the ground germs are splashed onto the leaves or stems by rainwater to cause initial infection. After the onset, the sclerotia or conidia are transmitted repeatedly by the rainwater, causing the disease to spread and spread. . Warm and high humidity is conducive to the occurrence and prevalence of the disease. Control method The website of this paper: Prevention and cure method of leaf blight of potato leaf blight disease Snacks usually refer to the food eaten outside the time point of three meals a day. Under normal circumstances, in people's life, except that three meals a day are called dinner food, the rest are called snacks. Canned fruit is a healthy snack. AGOLYN wholesale all kinds of canned fruit, such as canned yellow peach, canned orange, etc Snacks,Canned Lychee,Canned Peaches,Canned Fruit Xi'an Gawen Biotechnology Co., Ltd , https://www.seoagolyn.com