392 



Poplar (Populu.s spp.) 



Leaf Spot, Marsonia Populi Lib. Sacc. Tippecanoe, 1910. 



Mildew, Undnvla Solids (D.C. Wint. Common. 132. 



Rust. Melampsora Medusae Thuem. Common. 142, 71. Melan 



Abietis-canadensis (Farl.) Ludwig. Tippecanoe, Jasper, Steuben, 

 Putman. 



Potato (Solarium tuberosum L.) 



Bacterial Wilt, Bacilus solanacearum E. F. Smith. Serious locally. 7<{. 

 Early Blight. Macrosporium Solani Ell. & Mart. Common. 128, 119, 



78. 

 Pusarium Rot, Fusarium sp. Common. 

 Late Blight, Phytophthora infestans 'Mont.; DeB. Common. 128, 119, 



78. 

 Scab, Oospora scabies Thaxter. Common. 11, 13, 14, 15, 20, 76, 78, 54. 

 Tipburn. Probably sunseald injury. Tippecanoe, 1907. 



Priiet (Ligustrum culgare L.) 



Anthraenose, Gloeosporium cingvlatum Atk. Marion, 1908. 58. 



Quince (Cydonia vulgaris Pers.) 



Black Rot. Sphaeropsis malorum Pk. Shear indicates genetic connection 



with Melanops. Common. 76, 78. 

 Blight. Bacillus amylovorus (Burr.) DeToni. Common. 76, 78, 36. 40. 

 See also under Apple and Pear. 

 Leaf blight. Enlomosporium maeulatum Lev. Common. 128, 58, 36. 10. 



Perfect stage = Fabrea maculate Lev. Atk. 

 Mildew. Podosphaera oxyacanlhae (D.C.) DeB. Montgomery, ] sv ">. 



102. 

 Rust, Gymnosporangium germinale (Schw.) Kern. Perry. 1911. 77. 



Radish (Raphanus sativus L.) 



Downy Mildew. Peronospora parasitica Pers. DeB. 143. 



White Rust, Albugo Candida (Pers.) Roussel. Common. 132. 1 13. 



