29.3 
included diseased trees and trees so thoroughly infested with beetles 
that complete destruction was the only practicel means. of removing 
the infestations. Despite severe subzero weather, which has greatly 
interfered with progress anc caused many hardships to the workers, 
much highclass work was performed, A great deal of this success is 
due to the high interest ana determined efforts of the workers and 
their willingness to stick to the job through adverse weather condi- 
tions in order to save the elm, which is an important shade tree of 
that refion. Approximately half of the elms within the boundaries of 
the infested area have been examined and a large majority of the 
dangerous seed--trees for the disease heave been destroyed. In each of 
the States concerned, plans are being considered for conéinuation of 
the control work as State or local projects with a view to extending 
it over the remainder of the area during the next few months. 
constituted an important means of supplementing the control of white 
pine blister rust during the 1943 season. From 232 camps in 23 States 
CCC men were selected for pulling Ribes (currants and gooseberries) 
in the white pine areas of national forests, national parks, Indian 
reservations and State and private forest holdings. The methods of 
eradication varied somewhat in the Hast, Lake, and Southern Appalachian 
States from those in the West. In the former States hand methods were 
used exclusively for removing the Ribes, but in the West these methods 
were supplemented by the use of chemicals in the stream types where 
Ribes grow in thick concentrations and where hand eredication is im- 
practicable, The area of operation for Ribes eradication was within 
trucking or walking distance of the camps. Tne maximum number of CCC 
men employed on blister rust control reached 10,815 laborers and 670 
foremen and checkers. Of the number of laborers, 3,391 were employed 
in the Northeastern States. 6,197 in the Western Stotes, 1,107 in the 
Lake States, end 120 in the Southern Appalachian States. The Civilian 
Conservation Corps activities on blister rust control for.the country 
as a whole resulted in the protection of over half a million acres of 
white pine. They destroyed 49 willion Ribes bushes on 598,054 acres 
in 360,850 man deys, or an average of 82 Kibes per acre. The number 
of acres worked per man—ley averaged 1,7. In California blister rust 
control work was allotted approximately loo men from the CCC Gamps 
to aid in its program of eradicating wild currant ond gooseberry bushes 
in the suger-pine areas. These men worked out of 9 camps on j national 
forests, ani 2 parks, the Calaveras Grove of Big Trees and the Yosemite. 
Ribes eradication ceased with the dropping of the leaves and the be- 
ginning of winter weather. Work was then begun on preeradication 
surveys to locate the pine and determine control conditions on these 
areas in preparation for Ribes eradicetion work in tne spring. In the 
Lake States this work was conducted from 61 CCC camps; in Wisconsin 
it has been completed in Burnett, Longlade, and Pouglas Counties; in 
Upper Michigan survey work was completed at 4 camps and is continuing 
in § others; in Lower Michigan 5 camp areas have been completed and 13 
