{"id":1495,"date":"2026-08-20T09:26:09","date_gmt":"2026-08-20T01:26:09","guid":{"rendered":"http:\/\/yuyunze.pintoo.cn\/?p=1495"},"modified":"2026-08-20T10:08:25","modified_gmt":"2026-08-20T02:08:25","slug":"corn-disease-treatment","status":"publish","type":"post","link":"https:\/\/www.agrochemglobal.com\/index.php\/2026\/08\/20\/corn-disease-treatment\/","title":{"rendered":"Corn Disease Treatment"},"content":{"rendered":"

 <\/p>\n

    \n
  1. Corn Rust<\/li>\n<\/ol>\n

    Common corn rust, caused by the fungus Puccinia sorghi. In years with exceptionally cool summers, and especially on late-planted fields or sweet corn, yield losses may occur when the leaves at and above the ears become severely diseased before grain fill is complete.<\/p>\n

    Symptoms:<\/p>\n

    Dark, reddish-brown pustules may appear on any above ground part of the plant but are most abundant on the leaves. Pustules appear oval to elongate in shape, are generally small, less than 1\/4 inch long, and are surrounded by the leaf epidermal layer, where it has broken through. If infections occur while the leaves are still in the whorl, these pustules may develop in bands across the surface as the leaf expands in size.<\/p>\n

    \"\"<\/p>\n

    \"\"<\/p>\n

      \n
    1. Corn Sheath Blight<\/li>\n<\/ol>\n

      Corn sheath blight is a disease of corn caused by Rhizoctonia solani. The main damage is the leaf sheath, followed by the leaves, ear and wrapping leaves.<\/p>\n

      Symptoms:<\/p>\n

      Corn sheath blight mainly affects the leaf sheaths of corn, followed by leaves, ears and their wrapping leaves. When the disease is serious, it can invade the solid stem, but generally does not cause lodging. The disease is initially infected from the leaf sheath at the base of the stem, and then infects the leaves and spreads upward. The main symptoms are light brown water-soaked small spots or moir\u00e9-like gray-white spots at the base of the leaf sheath and leaves, which eventually lead to leaf sheath corruption and leaf death.<\/p>\n

      \"\"<\/p>\n

      \"\"<\/p>\n

        \n
      1. Corn Leaf Spot<\/li>\n<\/ol>\n

        Corn leaf spot is a disease of corn caused by Cercospora zeae-maydis. It’s only known host is corn and it overwinters in debris on the soil surface. Conditions that favor infection include moderate to warm temperatures during extended periods (greater than 24 hr) of high humidity (greater than 95 percent) or wet weather. Gray leaf spot is a problem in areas with minimum tillage and corn on corn rotations. In susceptible hybrids, the disease typically develops from silking to maturity.<\/p>\n

        Symptoms:<\/p>\n

        The disease first appears in the form of small, necrotic spots with halos. These usually expand to become rectangular lesions, about 1\/8 inch wide by up to 2 inches to 3 inches long and gray to brown in appearance. Mature lesions usually have distinct parallel edges and appear opaque when put up to the light, but the lesions hybrids vary widely in shape and color.<\/p>\n

        \"\"<\/p>\n

        \"\"<\/p>\n","protected":false},"excerpt":{"rendered":"

          Corn Rust Common corn rust, caused by the fungus Puccinia sorghi. In years with exceptionally cool summers, and especially on late-planted fields or sweet corn, yield losses may occur when the leaves at and above the ears become severely diseased before grain fill is complete. Symptoms: Dark, reddish-brown pustules may appear on any above ground part of the plant but are most abundant on the leaves. Pustules appear oval to elongate in shape, are generally small, less than 1\/4 inch long, and are surrounded by the leaf epidermal layer, where it has broken through. If infections occur while the leaves are still in the whorl, these pustules may develop in bands across the surface as the leaf expands in size. Corn Sheath Blight Corn sheath blight is a disease of corn caused by Rhizoctonia solani. The main damage is the leaf sheath, followed by the leaves, ear and wrapping leaves. Symptoms: Corn sheath blight mainly affects the leaf sheaths of corn, followed by leaves, ears and their wrapping leaves. When the disease is serious, it can invade the solid stem, but generally does not cause lodging. The disease is initially infected from the leaf sheath at the base of the stem, and then infects the leaves and spreads upward. The main symptoms are light brown water-soaked small spots or […]<\/p>\n","protected":false},"author":1,"featured_media":1558,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[50],"tags":[],"class_list":["post-1495","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-crop-solutions"],"acf":[],"yoast_head":"\nCorn Disease Treatment - Yuyunze (Shandong) Biotech Co., Ltd.<\/title>\n<meta name=\"description\" content=\"Yuyunze (Shandong) Biotechnology Co., Ltd. (hereinafter referred to as \u201cYuyunze Biotechnology\u201d), as a local professional pesticide production enterprise, has been deeply involved in pesticide research and development and production for 20 years. With solid technical accumulation, strict production standards, and high-quality product quality, it has become a benchmark enterprise in the regional pesticide industry.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.agrochemglobal.com\/index.php\/2026\/08\/20\/corn-disease-treatment\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Corn Disease Treatment - Yuyunze (Shandong) Biotech Co., Ltd.\" \/>\n<meta property=\"og:description\" content=\"Yuyunze (Shandong) Biotechnology Co., Ltd. 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