Abstract
This paper reviews the results of three months cooperative effort against the codling moth ( Carpocapsa pomonella ) in an infested district near Waverly, Missouri. This cooperation existed between a group of growers whose properties involved a total of over 1,000 acres of bearing apple trees, the Missouri College of Agriculture, and the Missouri Pacific Railway Company. In the season of 1928, the year previous to this effort, the percentage of infested fruit in the district from codling moth at picking time was fairly high. In 1929 at the end of the picking season, in spite of a rainy, cold season, which made it impossible to keep a cover of spray material on the fruit and foliage, the growers were agreed that they harvested an increased percentage of clean fruit and that they had been saved the expense of one spray.
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