Typical symptoms of corn dry rot

All parts of the ground can be affected, with the ear and leaf sheath symptoms being the most obvious. When the seedlings are damaged, brown dry shrinkage spots are produced in the young shoots and roots. The seedlings are weak and even dead, and the leaf disease is about 5 cm long and 1-2 wide. Centimeter of rectangular lesions. Peeling of the leaves can be seen in the lower part of the ear or in the whole ear, and there are tight gray-white mycelia between the leaves and the ears. The diseased ear becomes easy to break. Severe grain bases or whole grains have a small amount of white mycelium, which is scattered with many small black spots. Longitudinal cobs, the inner side of the cob, and the small black spots on the guards are also important symptoms to identify the disease. The former produces dark brown mycelium on the grain and cob. When severe, the whole ear turns black, and the grain is filled with blackened tissue and mycelium, in which black conidia are buried, and the stalk is medulla. The department is also blackened and the base of the ear is most vulnerable. When the stem is damaged, there are more knots and internodes in the lower part, and the diseased part is longitudinally split and the conidia are prominent. Linyi Fertilizer Network Copyright

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