Potato Diseases

USDA Sanitary Phytosanitary ProjectHamed Osmankhail, Kabul University Dr. Rick Foster, Purdue University

Zakria Faizi, Dr. Tom Creswell, Purdue University

Habib Rahman, MAIL PPQD Dr. Dan Egel, Purdue University

G Holmes

S Jensen

Late BlightFungus-like organism: Phytophthora infestans Dari

Early BlightFungus: Alternaria solaniDari

Rhizoctonia canker and Black ScurfFungus: Rhizoctonia solaniDari

G Holmes

P Bachi

Erwinia soft rot of tubers and Black leg of stemsBacteria: Erw inia spp.Dari

Common ScabCausal organism: Streptomyces scabiesDari

Tomato Spotted WiltViruses: Tomato Spotted Wilt TospovirusDari

G Holmes

Virus diseasesViruses: Alfalfa Mosaic Virus AlfamovirusDari

Virus diseasesViruses: Potato Virus Y PotyvirusDari

Bruce Watt

Root knot nematodesNematode: Meloidogyne spp.Dari