. Bulletin of the Department of Agriculture. Agriculture; Agriculture. 22 BULLETIN 658, U. S. DEPARTMENT OF AGRICULTURE. The maps will be found valuable not only as an interpretation of the data taken in intensive disease surveys in connection with timber surveys but in the appraisal, marking, and general administration of the sale area. With regard to appraisal the map will indicate the location of seriously infected areas and also the rot percentages. With respect to marking, the map will show the exact area of the. Fig. 22. — Cronartium colcosporioides, pine rust, blister form, on 2-ye
. Bulletin of the Department of Agriculture. Agriculture; Agriculture. 22 BULLETIN 658, U. S. DEPARTMENT OF AGRICULTURE. The maps will be found valuable not only as an interpretation of the data taken in intensive disease surveys in connection with timber surveys but in the appraisal, marking, and general administration of the sale area. With regard to appraisal the map will indicate the location of seriously infected areas and also the rot percentages. With respect to marking, the map will show the exact area of the. Fig. 22. — Cronartium colcosporioides, pine rust, blister form, on 2-year-old seed- lings of yellow pine. Fig. 23.—Cronartium coleosporioides, pine rust, blister form, an old infection, on the main trunk of lodge- pole pine, known locally as "hip canker" or "cat- ; most seriously infected trees and aid in the exclusion of infected trees for seed trees. From the standpoint of general administration, the maps will show the location of sites and age classes upon which heavier marking must be employed in order to conform with the most effective sanitation clauses. With regard to reforestation by artificial or natural means, these maps will show the proximity of infected stands and whether or not the site has been or apparently is favorable to excessive Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original United States. Dept. of Agriculture. [Washington, D. C. ?] : The Dept. : Supt. of Docs. , G. P. O.
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