Sclerotinia is one of the most important diseases on fruit mulberry, caused by fungal infection. The damaged mulberry fruit is hypertrophy, milky white or grayish white, and the fermented rancid smell can be smelled after smashing. The diseased fruit center has a black hard and hard sclerotia. The sclerotium in the soil overwintered in the soil. The sac sac then pulled out the ascitium plate the next year when the mulberry blossomed, and the ascus and ascospores were born on the ascariat disk. The ascospores were invaded by the wind and invaded the flower organ, and were mostly onset before fruit ripening. The mulberry garden has poor ventilation and light transmission conditions. The flowering period of the fruit mulberry meets continuous rainy weather, the temperature during the fruiting period is high, and the occurrence of sclerotium disease is heavy.
To control mulberry sclerotinia disease, the mulberry garden should improve the ventilation and light transmission conditions, and use 70% thiophanate-methyl WP 1000 times solution or 50% carbendazim WP 600 to 1000 from the initial flowering stage to the flowering stage. Double liquid spray prevention, once every 7 days, continuous control 2 to 3 times, 15 to 20 days before fruit picking. The diseased fruit mulberry is used once every 4 days until a small amount of mulberry fruit is discontinued when it turns red. The disease should be promptly removed and brought out of the mulberry garden. When the winter mulberry is in dormant period, brushing the mulberry branches with 4~5 Baume degrees lime sulfur has a good preventive effect on sclerotinia.
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