桑树病虫害
Disease and Pest of mulberry
桑树桑黄
Phellinus igniarius growing on mulberry tree
病害病因
disease and disease cause
桦树桑黄
Phellinus igniarius growing on birch tree
桑害虫
injurious insect of mulberry tree
桑树根结线虫
mulberry root-knot nematodiasis
桑树立炫f菌
Bacterium moricorum Yendo et Higuti