File:Bark beetle risk in mature ponderosa pine forests in western Montana (1972) (20166789839).jpg

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Title: Bark beetle risk in mature ponderosa pine forests in western Montana
Identifier: barkbeetleriskin119john (find matches)
Year: 1972 (1970s)
Authors: Johnson, Philip C. (Philip Cornwell), 1907-; Intermountain Forest and Range Experiment Station (Ogden, Utah) 1n
Subjects: Bark beetles Montana; Ponderosa pine Diseases and pests Montana
Publisher: Ogden, Utah : Intermountain Forest & Range Experiment Station, Forest Service, U. S. Dept. of Agriculture
Contributing Library: U.S. Department of Agriculture, National Agricultural Library
Digitizing Sponsor: U.S. Department of Agriculture, National Agricultural Library

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Figvo'e 1.—Croun oharaateristias of ponderosa pine trees symbolizing each of the four ratings of the Ponderosa Vine Risk Rating System and the relative risk^ or suscepti- bility j, of trees in each rating to attacks by the western pine beetle: A, Risk 1 (law risk); Bj Risk 2 (moderate risk); C_3 Risk S (high risk); and 0, Risk 4 (very high risk). 2

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https://www.flickr.com/photos/internetarchivebookimages/20166789839/

Author

Johnson, Philip C. (Philip Cornwell), 1907-;

Intermountain Forest and Range Experiment Station (Ogden, Utah) 1n
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Volume
InfoField
no.119
Flickr tags
InfoField
  • bookid:barkbeetleriskin119john
  • bookyear:1972
  • bookdecade:1970
  • bookcentury:1900
  • bookauthor:Johnson_Philip_C_Philip_Cornwell_1907_
  • bookauthor:Intermountain_Forest_and_Range_Experiment_Station_Ogden_Utah_1n
  • booksubject:Bark_beetles_Montana
  • booksubject:Ponderosa_pine_Diseases_and_pests_Montana
  • bookpublisher:Ogden_Utah_Intermountain_Forest_Range_Experiment_Station_Forest_Service_U_S_Dept_of_Agriculture
  • bookcontributor:U_S_Department_of_Agriculture_National_Agricultural_Library
  • booksponsor:U_S_Department_of_Agriculture_National_Agricultural_Library
  • bookleafnumber:10
  • bookcollection:usda_usfsintermountainregion
  • bookcollection:usdanationalagriculturallibrary
  • bookcollection:fedlink
  • bookcollection:americana
  • bookcollection:biodiversity
  • BHL Collection
  • BHL Consortium
Flickr posted date
InfoField
6 August 2015

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current23:18, 7 August 2015Thumbnail for version as of 23:18, 7 August 20152,356 × 2,850 (1.75 MB) (talk | contribs)== {{int:filedesc}} == {{subst:chc}} {{information |description={{en|1=<br> '''Title''': Bark beetle risk in mature ponderosa pine forests in western Montana<br> '''Identifier''': barkbeetleriskin119john ([https://commons.wikimedia.org/w/index.php?titl...

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