Idaho. (April 27-May 3) : Infestations in Clark, Fremont, and Jefferson 
Counties, in eastern Idaho, are heavier than anticipated. The range 
of development is from first 'to third instar in Clark County and 
second to third instar in Jefferson and Fremont Counties at the lower 
elevations, while at the higher altitudes of Clark and Fremont Coun- 
ties only 1 to 3 percent of the crickets have hatched; migrations 
are occurring in most areas. The range of development in the western 
counties of the State is from first to sixth instar with 40 percent 
in the fourth and 30 percent in the third. (May 4-10): Cricket in- 
festation in western Idaho is confined to Washington and Elmore Coun- 
ties, the infestation in Washington County "being greater than was 
anticipated. Limited migrations are occurring in the Mayfield area 
of Elmore County. Crickets range from second to sixth instars, with 
60 percent in the fourth. Mormon crickets in Jefferson, Bingham, 
Fremont, and Clark Counties, in eastern Idaho, are in the first to 
fourth ins tans , and hatching is not completed in the higher alti- 
tudes of Clark and Fremont Counties. Migrations have occurred in 
the lower altitudes of Clark and Fremont Counties and throughout 
Jefferson County. 
Utah. Cr. F. Knowlton and H. F. Thornley (May 17 ) : First- to fifth- instar 
Mormon crickets are now occurring in Tooele, Juah, and Utah Counties 
hatching areas, with some eggs still unhatched at higher elevations. 
Nevada. 3. M. Gaddis and assistants (April 27-May 3)* Most of the crickets 
in Humholdt County the week ended April 26 were in first and second 
instars. In the Smith Creek area of Elko County, northern tern Nevada, 
the week closing May 3» most wore in the third instar, with a few in 
the second and fourth. 
Washington. 3. M. Gaddis and assistants (April 27-May 3) : Cricket popu- 
lations in Franklin County in the southeastern part of the State range 
from 5 to 100 per square yard; 40 percent of the crickets are adult, 
50 percent sixth and seventh instars, and 10 percent second to fifth 
ins tans. Migrations are heavy and some hands have moved into wheat- 
fields, causing slight damage. Crickets in the Goodnoe Hills area 
of Klickitat County range from fourth to seventh instars; infesta- 
tions are spotted throughout the area. In Yakima County migrations 
of first to seventh instar nymphs are occurring in the Toppenish 
Mountains. (May 11-17); About 95 percent in Franklin County are in 
the adult stage. Very little migration has occurred during the last 
week, owing to the cool, rainy weather. Large numbers of sea gulls 
have appeared in the infested area of the county and are destroying 
some crickets. 
Oregon. (April 27-May 3) ; Mormon crickets at the lower elevations of 
the Warm Springs area in Wasco and Jefferson Counties are 40 per- 
cent sixth instar, 50 percent seventh instar, and 10 percent 
adult. In the higher areas the percentages are equally divided 
among the fourth, fifth, sixth, and seventh stages. Large bands are 
reported on the high plateaus of the Mutton Mountains. Ho appreci- 
able crop damage has occurred; however, range damage is reported in 
all areas. (May 4-10 ): Migrations we re retarded the forepart of 
the week on account of rain. On the Warm Springs Indian Reservation, 
crickets are moving westward onto uninfested lands on the north side 
LIBRARY 
STATE PLANT BOARD 
