1963. Amphibious helicopter landing at floating base of operation. Skowl Arm DDT application pilot project for black-headed budworm control. Prince of Wales Island, Southeast Alaska.

Amphibious helicopter landing at floating base of operation. Skowl Arm DDT application pilot project for black-headed budworm control. Prince of Wales Island, Southeast Alaska.

 

For a NOAA photo from this project see: www.photolib.noaa.gov/htmls/fish5520.htm

 

For more about this project see:

Karr, R.W., Pontious, M., Crosby, D., and B. Roettgering. 1963. Skowl Arm DDT Pilot Project, June 1963. USDA Forest Service. Region 10. 46 p.

Abstract: This report is an evaluation of the operational and biological phases of the Skowl Arm DDT pilot project. The study proved the operational feasibility of spraying the forests of southeast Alaska from a floating base using both the amphibious PBY plane and a helicopter. The spray coverage obtained with the helicopter was superior to that of the PBY.

 

Abstract is from BIBLIOGRAPHY, ALASKA REGION,

FOREST HEALTH PROTECTION, 1919-2001. TECHNICAL REPORT R10-TP-107 BIBLIOGRAPHY. MARCH, 2002. By Ken Zogas and Edward H. Holsten, located here: www.fs.usda.gov/Internet/FSE_DOCUMENTS/stelprdb5277712.pdf

 

The following is an excerpt from the 1963 Report on Game Studies, Alaska Department of Fish and Game, Game Division, Juneau, Alaska:

"OBJECTIVES

To determine the influence of 1/4 pound DDT (dichloro-diphenyl-trichloro-ethane) per acre as used in aerial sprays to control black-headed budworm (Acleris variana) on birds

and mammals in Southeast Alaska.

TECHNIQUES

In June 1963, the U. S. Forest Service, Region 10, con-ducted a pilot project to determine the effectiveness of a 1/4 pound DDT per acre spray application for controlling black-headed budworm populations. Spraying was done on June 21 from a PBY aircraft flying approximately 500 feet above the ground. The U. S. Fish and Wildlife Service and the Alaska Department of Fish and Game were invited to initiate studies to determine the effects of this spraying on fish and wildlife populations. The spray site was in the vicinity of Skowl Arm on the east side of Prince of Wales Island, Southeast Alaska, about 35 miles northwest of Ketchikan.

Three drainages were sprayed however, all bird and mammal investigations were confined to Cabin Creek drainage. Neither funds nor time allowed for extensive investigations of all species which might be influenced. Therefore, efforts were concentrated on the Sitka black-tailed deer, the most abundant big game species in Southeast Alaska, which is usually present in forests where subsequent spray programs may be undertaken." For more, see: www.adfg.alaska.gov/static/home/library/pdfs/wildlife/res...

 

Photo by: Unknown

Date: June 1963

 

Credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection.

Source: R6 Division of Timber Management, Insect and Disease Control Branch Collection; Regional Office, Portland, Oregon.

Image: ID-457

 

Image provided by USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection: www.fs.usda.gov/main/r6/forest-grasslandhealth

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