RESISTANT PLANTS 



I20I 



« White Burley » 



a Comstock Spanish » . . . 

 « Connecticut Havana » . . 

 « Kentucky Greenleaf » . 

 a Pennsylvania Broadleat » 

 « Brasile Beneventano ». . 

 « Marj'land Broadleaf <-, . 

 Italia Kent ucky ..... 



« Big Oronoco » 



« Ohio Seedleai » 



« Yellow Pryor » 



« Black Seedleaf • . . . . 

 Halladay Havana » . - . 

 « Gregor>-'s White Buiiey » 



«I,ittle Dutch" 



« Montgomery Seedleaf « . 

 « Maryland Xarrowleaf « . 



« Cuban » 



« Northern Hybrid » . . . 

 « Golden Spanish » . . . . 



« Silver I,eaf » 



« Page's Comstock . . 

 « Pease Seed » 



An examination of the table shows clearly that the degree of resistance 

 varies considerably from one type to the other, but nnfortimately the most 

 resistant t^-pes are also the least ttsed and least appreciated, while the \-a- 

 rieties most sought after, "White Burley ", " Comstock Spanish " and " Con- 

 necticut Havana " are extensivel}- injured by the fungus. In the present 

 article there are set out the results of a series of researches and experiments 

 undertaken with the object of selection from among the best varieties 

 susceptible to the disease the small number of individuals offering some 

 resistance, and which might serve as the basis for a renewal of the seeds. 



After having explored a considerable area of plantations, at the Agri- 

 cultural test vStation of Madison, Wisconsin, and at Walker Son's Farms 

 at Walkerville, Ontario, Canada, there were isolated 45 plants of the type 

 " White Burle}- " and 42 cigar leaf types (" Comstock Spanish", etc.) They 



