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How to prevent and treat anthracnose in magnolia? Practical methods shared

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(1) Strengthen water and fertilizer management, apply more organic fertilizer, and enhance the disease resistance of the plants. (2) Promptly prune diseased leaves from the trees, sweep up diseased and withered fallen leaves on the ground, and bury them together deep to reduce sources of infection. (3) At the early stage of the disease, spray 84.1% Haoduobao wettable powder and 77% Keshade wettable powder or 1:2:200 Bordeaux mixture, etc., spraying once every 15 days for a total of 2 to 3 sprays. After that, depending on the disease situation, choose and spray 75% chlorothalonil wettable powder at 600 to 1000 times dilution and 70% anthracnose fumei

(1) Strengthen water and fertilizer management, apply more organic fertilizer, and enhance the disease resistance of the plants.

(2) Promptly prune diseased leaves from the trees, sweep up diseased and withered fallen leaves on the ground, and bury them together deep to reduce sources of infection.

(3) At the early stage of the disease, spray 84.1% Haoduobao wettable powder and 77% Keshade wettable powder or 1:2:200 Bordeaux mixture, etc., spraying once every 15 days for a total of 2 to 3 sprays. After that, depending on the disease situation, choose and spray 75% chlorothalonil wettable powder at 600 to 1000 times dilution, 70% anthracnose fumei 500 solution, 65% zineb wettable powder at 500 to 800 times dilution, 50% carbendazim wettable powder + 75% chlorothalonil wettable powder at 800 times dilution, 50% mixed sulfur suspension concentrate at 500 times dilution, 70% thiophanate-methyl ultra-micron wettable powder at 1500 times dilution, etc.

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