29 
meridian westward, the bollworm rapidly becomes of less and less 
importance along with the diminishing- annual rainfall. The further 
consideration of this area will be included in the next topic. 
THE BOLLWORM IN THE WESTERN UNITED STATES. 
Owing to the incompleteness of data on the distribution and destruc- 
tivcness of the bollworm in the more Western States traversed by the 
Rock}^ and other ranges of mountains, and the consequent breaking up 
of the zones into small and more or less poorly defined areas, it will 
not be possible to indicate the relative destructiveness of the insect in 
this territor}^ except in a ver}- general way. 
No records have been found of the occurrence of the bollworm 
in the States of Montana and Washington, In Oregon, however, 
it was reported b}^ Professor Washburn " as destructive to sweet 
corn at Corvallis, in 1889, and elsewhere in the State. It was not con- 
sidered a newcomer, as it had been reported by farmers four, or even 
eight, 3"ears previously. These reports appear very probable, in view 
of the records of this Bureau of two specimens from Oregon prior to 
1885, as mentioned by Riley in the Fourth Report of the United States 
Entomological Commission . 
The bollworm was to be found in California as early as 1879, accord- 
ing to a note in the Pacific Rural Press of September of that year. 
More recenth' ^ the insect has been mentioned b}^ Mr. Coquillett as 
feeding on various plants in that State, though no data are furnished 
to indicate serious injury from the pest. In Nevada, according to 
Prof. F. H. Hillman,^' the bollworm is commonly injurious to sweet 
corn, and less frequently to tomatoes, in the western part of the State. 
Injury is reported '^ from Buckeye, Ariz., to corn in 1899, and its occur- 
rence in portions of New Mexico, injuring corn and tomatoes, has been 
occasionally mentioned by Professor Cockerell. In Utah, according 
to Prof. E. D. Ball, the bollworm is a pest of considerable importance, 
injuring corn and other crops. 
FARM METHODS IN RELATION TO BOLLWORM INJURY. 
As has been elsewhere mentioned, present injury to cotton by the 
cotton bollworm assumes its greatest proportions in Texas, Louisi- 
ana, Indian Territory, Oklahoma, Mississippi, and Arkansas, with 
more or less injur}' in Alabama. The fact that the western part of the 
cotton belt should be thus afflicted, while the Carolinas, Georgia, and 
Florida enjoy practical immunity, is somewhat remarkable, and this 
«Bul. 3, Oreg. Agric. Exp. Sta., p. 6. 
& Insect Life, I, p. 331. 
cBiil. 36, Nev. Agric. Exp. Sta., p. 19. 
rfBul. 32, Ariz. Agric. Exp. Sta., p. 288. 
