-1H7- 
of weevils produced during the season from a known number of weevils intro- 
duced into the field, and also the number of weevils' that hibernated in the 
field. The examination of the 193^ .crop was made from January 2 to 7 . 1935 • 
A total of 5 i 196 bolls were collected, k,C^>k from the plants and 1,1^2 from 
the ground. From these bolls 121 weevil stages were found and 82, or 
67.77 percent, were alive. A total of 170 weevil cells were found and U9 
were empty. It was found that 2.79 percent of the bolls from the plants 
contained weevil cells or stages and 2.^5 percent of the bolls from the 
ground were infested. Although this examination shows that the percentage 
of live weevils present is normal, the weevil population produced in the 
field is below normal, as compared, to the population produced in the same 
field since 1926. Another examination showed that the infestation was be- 
low normal in the 193^ crop, as compared to the infestation records kept 
in the same field since 193G» The comparatively low infestations in domes- 
tic cotton in 193^" is attributed to drought in southeastern Arizona during 
the growing season and to an abnormally low weevil population in Thurberia 
plants in the mountains. Surveys made in four mountain ranges in south- 
eastern Arizona during January and early February show that the weevil pop- 
ulation present in Thurberia plants is normal. This indicates that a 
normal weevil infestation may be expected in domestic cotton plantings in 
southeastern Arizona this year, provided rainfall is normal during July and 
August, affording sufficient moisture to release the weevils from their 
pupal cells. 
CUTWORMS (iToctuidac) 
Texas, Arizona, and Mexico. R. E. McDonald (May 13): L. B. Coffin reports 
that cutworms are doing considerable damage to the field cotton in the 
Presidio section of Texas, but so far they have not damaged the trap-plot 
cotton. Some of the farmers intend to use poison, but in any case it will 
be necessary to replant some of the fields. The worms are also doing some 
damage on the Mexican side, and one ranch will have to replant about kO 
acres. S. D. Smith writes that cutworms are very numerous in the Tucson, 
Ariz., district this year, and that some replanting will bo necessary. 
Texas. K. P. Ewing and R, L. McGarr (May 2k) : Considerable injury to young 
cotton by cutworms in the vicinity of Port Lavaca was reported during April 
and early in May. Most of the material submitted was determined tcntativel; 
as Agrotis ypsilon Rett. , and Feltia malefida Guon. , although many of the 
specimens were abnormal and many represent closely related species. In- 
cluded with the cutworm specimens were a few specimens of Eel io this obsolet e 
Fab. and Prodonia sp. (probably a very dark form of P. ornithogalli Gucn.). 
(Det. by C. Heinrich.) 
SALT-MARSH CATERPILLAR (Estigmene acraea Drury) 
Texas. R. L. McG-arr (May 2k): The salt-marsh caterpillar caused considerable 
damage to young cotton in Calhoun County in April. (Det. by C. Heinrich 
as dark specimens of E. acraea . ) 
