-294- 
GENERAL FEEDERS 
GRASSHOPPERS (Acrididae) 
General. C. Wasteland (June 28): No populations of Dissosteira longipennis Tho: 
remain in Colorado and New Mexico to justify control. In Baca County, Cole 
most Melanoplus mexicanus Sauss, are adults. Light populations have reache 
grainfields of northern Baca County and eastern Kansas. M. mexicanus popu- 
lations in northern and northeastern Colorado are light, except in alfalfa 
where baiting by farmers has been lacking. Same situation in Wyoming. 
Crop damage heavy in western Nebraska, owing to lack of control by farmers. 
Crop losses not over 5 percent in Montana. Situation at Kittson, Marshall, 
and Polk Counties, Minn., well in hand. M. mexicanus late in northeastern 
North Dakota but beginning in Pembina County^ Populations of M. bivittatus 
Say extremely heavy in east-central and southern counties of South Dakota, 
Colorado. B. M. Gaddis and assistants (July J.4-20):^ Survey of El Paso, Oterc 
Pueblo, Las Animas, and Lincoln Counties revealed few D, longipennis . Less 
than 1 per square yard found over an area of 20 sections in these counties. 
Prom 75 to 95 percent of M. hi vittatus , M. mexicanus , and Aeoloplus turn- 
bullii Thos. are in the adult stage, 
California. (July 14-20): Second-generation M. mexicanus now present in Im- 
perial County averaging 25 per square yard in many fields. Populations are 
5 percent first instar, 10 percent second, and 80 percent third instar. 
About 2 percent of the first-generation adults remain, M, devastator Scudd 
is 98-pprcent adult in S&n Diego County. 
Nevada. (July l4-20): Oviposition at peak throughout the State, with that of 
M, occidontalis Thos. practically completed, 
Texas. (July 14-20): Heavy concentrations of M. differentialis Thos. reported 
along field margins, espocially small-grain fields, in Potter and Oldham 
Counties, numbering as high as 25 per square yard along margins of some 
fields. Concentrations of M. mexicanus in these comities were not over 3 
per square yard in fields, or Id per square yard in margins. M. packer dii 
Scudd. and M. differontialis are dominant in Dallam and Hartley Counties 
and A. turnbullii is dominant in Hansford County. Native crop-hoppcr popu- 
lations range from 20 to 25 por square yard, 
E. L. Thomas (July 9)i Damaged cotton along creeks and the east fork of 
the Trinity River. 
Oklahoma. (July 7-13 )• Dominant species in Texas and Cimarron Counties are A, 
turnbullii , M. mexicanus , and M, packardii . Very little control work being 
done. 
E. E. Whitehead (July 24); Outbreaks in the entire Panhandle have boon 
much more severe than anticipated. 
Kansas. (July 7-13) : A. turnbullii remains the dominant species throughout the 
wostern part of the State. Certain local infestations show as high as 80 
¥ 
Where no name is givon after the State tho roport is by B 
ant s • 
M. Gaddis and assifr 
