Diseases of Andropogoneae

Diseases of Silvergrass


Ergot
Causal organism: Claviceps panicoidearum Tanda, Ascomycotina


Rust
Causal organism: Puccinia miscanthi Miura, Basidiomycotina

Disease of Amur silvergrass


Black choke
causal organism: Ephelis japonica Hennings, Imperfect fungi
Fungal disease which causes head blight and occurs mainly in the warm regions. After heading, the whole infected heads are covered with gray to black colony. Later the fungus fasten each head spike and the whole head looks grayish black moldy. White colony appears on the surface of the leaf like the sripe along the leaf vein. It is reported that the causal organism is infected in the entire plant as an endphyte and the infected plant becomes resistant to insects such as grasshopper.

Diseases of Cogon grass


Black choke
causal organism: Ephelis japonica Hennings, Imperfect fungi
Fungal disease which causes head blight and occurs mainly in the warm regions. After heading, the whole infected heads are covered with gray to black colony. Later the fungus fasten each head spike and the whole head looks grayish black moldy. White colony appears on the surface of the leaf like the sripe along the leaf vein. It is reported that the causal organism is infected in the entire plant as an endphyte and the infected plant becomes resistant to insects such as grasshopper.


Sheath blight
Causal organism: Rhizoctonia solani Kuhn, Imperfect fungi

Diseases of Microstegium vimineum


Blast
Causal organism: Pyricularia sp., Imperfect fungi


Leaf blight
Causal organism: Bipolaris sp., Imperfect fungi

Disease of Chrysopogon aciculatus


Black choke
Causal organism: Ephelis japonica Hennings, Imperfect fungi
Fungal disease which causes head blight and occurs mainly in the warm regions. After heading, the whole infected heads are covered with gray to black colony. Later the fungus fasten each head spike and the whole head looks grayish black moldy. White colony appears on the surface of the leaf like the stripe along the leaf vein. It is reported that the causal organism is infected in the entire plant as an epiphyte and the infected plant becomes resistant to insects such as grasshopper.

Diseases of Greek grass


Blast
Causal organism: Pyricularia sp., Imperfect fungi


Summer blight
Causal organism: Rhizoctonia sp.?, Imperfect fungi

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