GEOGRAPHIC DISTRIBUTION. 1 .'i 



land, Virt^iniii, West Vii'fjiiiia, Kontiu-ky, Tennosseo, North Carolina 

 South Carolina, Arkansas, Oklalionia, Louisiana, Mississip])i. Ala- 

 bama, and Florida, ))ut in most of those regions occasional serious 

 outl)rcaks are reported in seasons favorable to curl or in particular 

 localities. It prevails rather more seriously in portions of Geor- 

 gia, Kansas, and Missouri. In Texas, New Mexico, Arizona, ;uid 

 Colorado it has occasioned but little loss and is not widely known. 

 Reports from Utah and Nevada are meager, but it is probal)le that the 

 disease prevails to a limited extent in lK)th States. The more northern 

 States not mentioned here have either failed to rejjort th(> prevalence of 

 the disease or are properly included within that portion of the Tnitc^d 

 States unsuited, l)v rigoi* of climate, to successful peach culture. 



In Canada ])oth Ontario and British Columbia, which are the leading 

 peach-growing provinces, are favorabh' situated for the serious devel- 

 opment of peach leaf curl in wet seasons. Mr. John Craig, horticul- 

 turist of the Central Hxperimental Faiin. Ottawa, writes that the 

 disease "obtains in Canada in all the peach-growing districts, including 

 British Columbia and the Province of Nova Scotia." It is known to 

 cause consideral)le losses of fruit in some sections.^ 



Peach leaf curl exists also in some if not all the peach-growing coun- 

 tries of South America. In Chile the peach is widely grown, being 

 planted from the snow line of the Andes to the Pacific Ocean, and from 

 Copiapo south as far as Valdivia, a distance of 800 miles. Mr. C. T. 

 Ward, Jr.,'* of the Hacienda Loreto, Department of Limache, says that 

 the parasite of peach leaf curl "exists all over the country where the 

 peach grows," but that no satisfactory method of control is yet 

 practiced there. 



In Europe Dr. R. Sadebeck"* records the disease from Denmark, Ger- 

 many, Austria, Switzerland, and Italy. He states that in central Ger- 

 many it prevails more extensively than in the vicinity of Hamburg.* 

 Among the many German scientists who have written upon this 



' ]\Ir. L. Woolverton, secretary of the Fruit Growers' Association of Ontario, said, 

 in 1S90, in a paper entitled, Points on Peacli Growing in the Niagara District, puli- 

 lislied in the Annual Report of the Society for that year, pp. 56 and 57: "The peach 

 has its share of enemies and diseases, chief among which are the curl, curculio, the 

 borer, and the yellows. For the curl I know no remedy. It is not often severe, Ixit 

 sometimes with the diseased leaves the fruit also drops." Mr. John Craig, in writing 

 from Ottawa imder date of October 7, 1897, says, relative to the disease in Ontario: 

 "It is only severely injurious here during years of unusually heavy rainfall. Tliis 

 year it was very l)ad." 



2 Letter of March 22, 1896, to Mr. J. M. Dobbs, U. S. Consul at Valparaiso, Chile. 



^Sadebeck, Dr. R., Die parasitischen Exoasceen. Eine Monographic, Hamburg, 

 1893, p. 94. 



■'Sadebeck, Dr. R., Untersuch. iiber die Pilzgattung Exoascus, Hamburg, 1884, p. 

 115. 



