Tomato leaf mold is the main disease that damages tomato leaves. After the leaves are damaged, small yellow spots with inconspicuous edges appear on the front of the leaves. Irregular or elliptical yellowish or light green chlorotic lesions appear on the back of the leaves, and the primary white mold layer becomes taupe. a layer of velvet mold. The lower leaves of the plant first developed and gradually spread upward. It is easy to develop under warm and humid conditions, and the cultivation of greenhouses is serious.
To prevent and cure tomato leaf mold, we must first pay attention to maintain ventilation and ventilation, and timely remove the aging yellowed leaves. The greenhouse should be planted with attention to release air and drain, and do not suffocate after watering. When the diseased leaves are found, spray the 300~400 times 3% Wuyin extract aqueous solution, or 500~600 times 0.5% Xiaochai's aqueous solution, or 1500~2000 times 10% difenotropium water dispersant aqueous solution. , or 600~800 times 47% spring Leiwang copper wettable powder aqueous solution, or 1500 times 50% procymidone wettable wet powder aqueous solution, or 1500 times 50% iprodione wettable powder aqueous solution, etc., every 7~10 days Spray once and spray continuously for 2~3 times to evenly spray all the blades. If you can add 1500 times 0.01% natural brassinolide and 0.3% potassium dihydrogen phosphate mixture, the control effect is better, and it can promote tomato plants, increase yield and improve quality. Linyi Fertilizer Network Copyright
(Huang Jianan) Linyi Fertilizer Network Copyright
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