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一、蓝莓僵果病该病是由真菌引起的。在侵害初期,成熟的孢子在新叶和花的表面萌发,菌丝在叶片和花表面的细胞内和细胞外发育,引起细胞破裂死亡。从而造成新叶、芽、茎干、花序等突然萎蔫、变褐。3~4周以后,由真菌孢子产生的粉状物覆盖叶片叶脉、茎尖、花柱,并向开放花朵传播,进行二次侵染,最终受侵害的果实萎蔫、失水、变干、脱落。越冬后,落地的僵果上的孢子萌发,再次进入第二年循环侵害。早春多雨和空气温度高的地区往往发病严重,冬季低温长
First, the blueberry stiff fruit disease is caused by the fungus. At the initial stage of invasion, mature spores germinate on the surface of new leaves and flowers, mycelium develops both intracellularly and extracellularly on leaves and flowers, causing the cells to rupture and die. Resulting in new leaves, buds, stems, inflorescences and other sudden wilting, browning. After 3 to 4 weeks, the powder produced by the fungal spores covers the leaf veins, shoot tips and styles and spreads to the open flowers for secondary infection. Finally, the infested fruits wilted, dehydrated, dried and shed. After overwintering, the spores germinated on the dead fruit of the floor and re-enter the second year of cycle encroachment. Early spring rainy and air temperature is often high incidence of severe areas, low temperatures in winter long