• Trial, Henry Jr.
  Maine Forest Service Department of Conservation
  
• Struble, David
  Maine Forest Service Department of Conservation
  

In 1976 the Maine Forest Service conducted a 3.5 million acre serial spray project against the spruce budworm in northern and central Maine. The goal of the operation was to reduce budworm populations and associated defoliation to prevent substantial tree mortality in high-hazard areas. The chemicals used were carbaryl (Sevin 4-oil) applied at the rate of 3/4 lb. and 1 lb. A.I. per acre and trichlorfon (Dylox-4) applied at the rate of 1 lb. A.I. per acre. The total cost of the project was $8,526,580.