Black Stem Rust of Wheat : caused by a Puccinia graminis tritici , a basidiomycete ● macrocyclic, heteroecious rust ○ wheat=telial host, barberry=aecial host ○ on barberry: spore stages are spermatia and aeciospores ● primary inoculum : aeciospore, s

PLPA200_diseases_final_study_guide.docx-Late blight of potato ○ Phytophthora