Pomegranate brown spot is a fungal disease that mainly damages leaves and fruits, causing early fruit drop and late defoliation. After the leaves were damaged, they started with small brown spots. After the expansion, they were nearly round, with black to dark brown edges, slightly convex, and gray-black spots in the middle. The symptoms on the back of the leaves were the same as those on the front. The lesions on the fruit were nearly round or irregular in shape, slightly sunken in black, and also had gray velvet-like spots. The outer edges of the lesions were pale yellowish white after the fruit was colored. Its prevention methods are as follows: 1, a reasonable dense planting. Cut off the dense branches, thin branches, strengthen the ventilation and light transmission of the garden; 2. Strengthen the management of fertilizer and water, and increase the tree vigor. When clearing the garden in winter, the sick leaves and dead branches should be removed and burned in a concentrated way to reduce the bacteria source, reduce the incidence, and enhance the resistance to disease; 3. Chemical control. Can spray 80% mancozeb WP WP 600 to 800 times, 70% thiophanate-methyl WP 600 times, or 50% carbendazim WP 600 times, etc., alternating use, the effect is more it is good.
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