File:1934. Three relative degrees of Dendroctonus brevicomis attack; heavy, medium, and light on ponderosa pine. (39817485915).jpg
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current | 02:07, 7 May 2018 | ![]() | 1,622 × 1,084 (407 KB) | OceanAtoll | Transferred from Flickr via #flickr2commons |
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