. Bulletin of the Department of Agriculture. Agriculture; Agriculture. FOREST DISKASE SURVEYS. 15 found in a certain age class, a certain site (slope and bottom) for a given tree species for r * mm nrn|!. METRIC ''SYSTEM fei,ifciK~.j^ '/i*,.':!.'*.,. *-**- mi f[f]TlJ!ll!| Fig. 16.—Typical rot of the root Fomes in grand fir. the black dots in the white areas. Note a given kind of rot, and would be com- piled from intensive field studies made upon felled trees. It would properly be termed a "table of rot percentages " and would be used by the estimator of each unit crew to d
. Bulletin of the Department of Agriculture. Agriculture; Agriculture. FOREST DISKASE SURVEYS. 15 found in a certain age class, a certain site (slope and bottom) for a given tree species for r * mm nrn|!. METRIC ''SYSTEM fei,ifciK~.j^ '/i*,.':!.'*.,. *-**- mi f[f]TlJ!ll!| Fig. 16.—Typical rot of the root Fomes in grand fir. the black dots in the white areas. Note a given kind of rot, and would be com- piled from intensive field studies made upon felled trees. It would properly be termed a "table of rot percentages " and would be used by the estimator of each unit crew to deter- mine the rot percent- ages for each type of forest encountered. Further deductions for other defects could then be esti- mated and' the total cull percentage se- cured by the addition of the rot percent- age. In conjunction therewith, another table giving (1) the class of defect, (2) common name of the defect, (3) the fun- gus causing it. (4) the various tree spe- cies affected. (5) the general external and internal characteris- tics of the defects, and (6) the average extent of the rots and the general form of the rot within the tree would be of great service to the estimator. Such a table prepared from field data secured during the past three seasons is here submitted. (Table I; figs. 2 to 23.). FlG i7.—piioliota adiposa, the scaly Fholiota. Freeman.) (After. 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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