 In contrast, mortality exceeded 65% in 2 unsprayed check areas, each 155 km2.If the program of spraying against budworm had not been carried out, forest production in central New Brunswick would have been reduced to 20% of its normal production, leading to a loss of some 2,400 man-years of employment annually.The cost of the program, $11,600,000 for 1952 to 1958 and $10,200,000 for 1960 to 1967, was but a small fraction of the value of the resource saved.