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How to treat garlic leaf blight? Master integrated control techniques in one article

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Shandong is a major garlic-producing region, and garlic suffers fewer diseases than other vegetables. However, in recent years, a relatively rare new disease, garlic leaf blight, has appeared in garlic-growing areas, and it strikes fiercely and causes severe damage. Once this disease occurs, it can cause major yield reductions. I. Symptom identification This disease mainly affects leaves and leaf sheaths. Leaf infection falls into two types: first, the tip-blight type, which mainly occurs in the initial infection stage, with the leaf tip turning dark brown and forming many dark purplish-brown oblique parallel stripes on it; in severe cases the lesions extend to 1/3 to 4

Shandong is a major garlic-producing region, and garlic suffers fewer diseases than other vegetables. However, in recent years, a relatively rare new disease, garlic leaf blight, has appeared in garlic-growing areas, and it strikes fiercely and causes severe damage. Once this disease occurs, it can cause major yield reductions.

I. Symptom identification This disease mainly affects leaves and leaf sheaths. Leaf infection falls into two types: first, the tip-blight type, which mainly occurs in the initial infection stage, with the leaf tip turning dark brown and forming many dark purplish-brown oblique parallel stripes on it; in severe cases the lesions extend to 1/3 to 4/5 of the whole leaf, or the entire leaf dries up and dies;

Second, the leaf-spot type: in the early stage of the disease, short strip-shaped small eroded spots appear on the leaves, slightly sunken, after which the lesions rapidly expand and become fusiform to long elliptical, with the tissue necrotic and sunken, mostly purplish-brown, darker in the center, and some are milky white. When it breaks out severely, the entire field dies within 10 to 15 days.

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