BUREAU OF ENTOMOLOGY AND PLANT QUARANTINE 37 
Extensive rangeland programs completed 
Unfavorable weather or other natural conditions prevented nymphs 
from developing normally on 250,000 acres of Texas rangeland, but 
the remainder of the area produced heavy populations. A total of 
34,000 acres in two drought-stricken counties were sprayed coopera- 
tively. It is expected that the untreated infested areas will require 
spraying in 1954 if serious damage is to be avoided. 
There was no organized control work in Oklahoma, nor was the 
grasshopper population reduced by weather conditions. Severe 
drought, however, intensified the damage to the 100,000 infested acres 
there, indicating a more serious problem in 1954. 
The carryover of grasshopper infestation into 1954 will probably 
include some 450,000 acres of privately owned rangeland in south- 
eastern Colorado; 200,000 acres of public domain in southwestern 
Colorado; 100.000 acres of mixed ownership rangelands in north- 
central New Mexico; 200,000 acres of infested Federal rangeland in 
Idaho ; 150,000 acres of National Forest rangeland in Wyoming ; and 
approximately 225,000 acres of infested Federal rangeland in Nevada. 
A highly successful cooperative rangeland grasshopper-control 
program was completed in Xew Mexico in July 1952. Aircraft 
sprayed 315,000 acres of heavily infested grasslands. Surveys fol- 
lowing treatment showed the sprayed area to be free of grasshoppers. 
Kancher cooperators stated, "It is the best money we ever spent." 
Encouraged by the 1952 results, ranchers and the State of New Mexico 
are prepared to participate in a similar program during 1953. The 
work, to start after July 1, 1953, will involve control within the 
425,000-acre infestation. 
During the 1952 season organized control programs reduced popula- 
tions in Arizona, Idaho, Montana, Nebraska, Utah, Washington, and 
Wyoming. In these States 323,400 acres were successfully treated 
with aldrin-oil spray solution applied by aircraft and ground 
equipment. 
Grasshopper-control activities completed in the spring and early 
summer of 1953 included 120,000 acres in California, 34,000 in Texas, 
24,000 in Utah, and 19,000 in Arizona, California and Arizona 
ranchers were particularly enthusiastic about the results. 
Unfavorable weather reduced a rangeland infestation observed 
during the fall of 1952 on some 800,000 acres in western North Dakota 
to about 10,000 acres of spotted infestation. 
Technical assistance, including surveys and demonstrations, has 
been given by the Bureau in crop areas involved in these programs. 
The cost of any extensive actual control has been borne by farmers 
whose lands were infested. Illustrative of results of a grower- 
sponsored control project is the following comment received from a 
director of the Kern County (California) Grasshopper Control Proj- 
ect : "Please allow me on behalf of the growers in the southern end of 
the San Joaquin Valley, Kern County, to express our sincere grati- 
tude for the cooperation and assistance you and your staff gave us 
in controlling grasshoppers. * * * This project was somewhat of a 
departure from prior ones. We growers set out to help ourselves in 
order to reduce and to avoid the continuation of the usual asking of 
different segments of government to pay the whole bill and do the 
whole job. We did not succeed in this entirely, but were able to pro- 
