Survey of hardwood defoliation in the Turtle Mountains, North Dakota Public Deposited

http://ir.library.oregonstate.edu/concern/defaults/k643b262z

A looper, probably the Bruce spanworm, Operophtera bruceata (Hulst), defoliated more than 15,650 acres of quaking aspen in the Turtle Mountains of North Dakota in the spring of 1973.

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  • description.provenance : Approved for entry into archive by Laura Wilson(laura.wilson@oregonstate.edu) on 2006-11-02T16:31:16Z (GMT) No. of bitstreams: 1 no. 73-19_ocr.pdf: 6689713 bytes, checksum: 07238087a63627541d72221d0adb5330 (MD5)
  • description.provenance : Approved for entry into archive by Patricia Black(patricia.black@oregonstate.edu) on 2006-11-01T19:04:23Z (GMT) No. of bitstreams: 1 no. 73-19_ocr.pdf: 6689713 bytes, checksum: 07238087a63627541d72221d0adb5330 (MD5)
  • description.provenance : Submitted by Adam Powell (powella@onid.orst.edu) on 2006-11-01T18:27:25Z No. of bitstreams: 1 no. 73-19_ocr.pdf: 6689713 bytes, checksum: 07238087a63627541d72221d0adb5330 (MD5)
  • description.provenance : Made available in DSpace on 2006-11-02T16:31:17Z (GMT). No. of bitstreams: 1 no. 73-19_ocr.pdf: 6689713 bytes, checksum: 07238087a63627541d72221d0adb5330 (MD5) Previous issue date: 1973

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