目前果桑已开始萌芽生长,进入花絮分离期,预计4月初进入始花期,是果桑菌核病分生孢子侵染关键时期。果桑菌核病是果桑最主要的病害,主要危害桑椹,以菌核越冬,菌核随桑椹落地,4月上中旬桑树开花时,土中菌核抽生出子囊盘和子囊孢子,孢子随风传播侵染桑花,危害果实桑椹。提醒农民朋友立即采取防治措施,确保果桑正常生长。一、发病因素 At present, fruit mulberry has begun to sprout growth, into the highlights of the separation period is expected to enter the beginning of flowering in early April, is the fruiting sclerotial disease conidia critical period of infection. Fructus Mori Sclerotinum is the most important disease of fruit mulberry, the main harm mulberry, with the sclerotial winter, the sclerotia with mulberry fall to the ground, mulberry flowering in mid-April, the soil bacteria nuclear pumping out ascosphere and ascospores, spores with Wind spread infected mulberry flower, endanger fruit mulberry. Remind peasant friends immediately take preventive measures to ensure the normal growth of fruit mulberry. First, the incidence of factors