. Bulletin of the Department of Agriculture. Agriculture; Agriculture. BULLETIN OF THE No. 88. Contribution from the Bureau of Entomology, L. 0. Howard, Chief. April 30, 1914. THE CONTROL OF THE CODLING MOTH IN THE PECOS VALLEY IN NEW MEXICO. By A. L. Quaintance, in Charge of Deciduous Fruit Insect Investigations. INTRODUCTION. For some years complaints have been received by the Bureau of Entomology from the fruit growers in the Pecos Valley, N. Mex., of the severe injury to apples and pears by the codling moth (Carpocapsa pomonella L.). The methods employed in the control of this insect
. Bulletin of the Department of Agriculture. Agriculture; Agriculture. BULLETIN OF THE No. 88. Contribution from the Bureau of Entomology, L. 0. Howard, Chief. April 30, 1914. THE CONTROL OF THE CODLING MOTH IN THE PECOS VALLEY IN NEW MEXICO. By A. L. Quaintance, in Charge of Deciduous Fruit Insect Investigations. INTRODUCTION. For some years complaints have been received by the Bureau of Entomology from the fruit growers in the Pecos Valley, N. Mex., of the severe injury to apples and pears by the codling moth (Carpocapsa pomonella L.). The methods employed in the control of this insect in other apple-growing regions have, in the Pecos Valley, been stated to be there much less efficient, so that a considerable portion of the crop of fruit has been wormy and unsalable. The codling moth should yield as readily to treatment in the Pecos Valley as elsewhere, though, owing to favorable climatic conditions, it was surmised that it might develop an additional generation. It was not believed, however, that the behavior of the insect in that region was essentially different from its behavior in other sections, and the lack of satisfactory results from spraying operations, it was thought, probably resulted from failure to accomplish this work in a thorough and timely manner. Beginning in the spring of 1912 an investigation of the codling moth was undertaken by the Bureau of Entomology, with head- quarters at Koswell, N. Mex., and Mr. A. G. Hammar, who had had much experience with this insect at other field stations of the bureau, was assigned to the work. During that year he was assisted by Mr. Earl R. Van Leeuwen, and during 1913 by Mr. L. L. Scott and Mr. E. W. Geyer. Owing to the unfortunate death of Mr. Hammar there devolves upon the writer the necessity of preparing for publication, for the benefit of the Pecos Valley fruit growers, the results of Mr. Hammar's experiments. The investigations carried out by Mr. Hammar comprise a thorough inquiry into the fife histor
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