Biwi PIN Or 7 HE 
2) USDEPARIMENT OFAGRICULTURE ‘a 
No. 88 
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Contribution from the Bureau of Entomology, L. O. Howard, Chief. dihealt 
| April 30, 1914. ai ee 
THE CONTROL OF THE CODLING MOTH IN THE 
PECOS VALLEY IN NEW MEXICO. il | 
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By A. L. QuUAINTANCE, in Charge of Deciduous Fruit Insect Investigations. 
INTRODUCTION. ee il 
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For some years complaints have been received by the Bureau of _ iN 
Entomology from the fruit growers in the Pecos Valley, N. Mex., of ey 
the severe injury to apples and pears by the codling moth (Carpocapsa ii} 
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 i 
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 Hl 
was not believed, however, that the behavior of the insect in that ul 
region was essentially different from its behavior in other sections, aM 
and the lack of satisfactory results from spraying operations, it was Hl 
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 ak 
moth was ‘undertaken by the Bureau of Entomology, with head- 
quarters at Roswell, 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. ANG 
KH. W. Geyer. Owing to the unfortunate death of Mr. Hammar there iW 
| devolves upon the writer the necessity of preparing for publication, ANG 
| for the benefit of the Pecos Valley fruit growers, the results of Mr. Al 
| _ Hammar’s experiments. The investigations carried out by Mr. ih 
| Hammar comprise a thorough inquiry into the life history and habits tl] 
| | 
| 
of the coding moth in that region, and experiments with sprays in 
orchards. The results of the life-history studies will be given in, 
another paper. 7 7 vee 
Notr.—This bulletin describes the codling moth as it affects fruit growing in the Pecos Valley, N. Mex, 1) 
It is of interest to fruit growers in the Southwest. ati 
3A853°—14 
