are few grasshoppers east of Wichita and heavy populations are .not 
encountered east of Pratt. Most nymphs in the eastern portion of the 
: infested area are still 'in the first and second instars, while in the 
southwestern portion of the State, populations have not progressed 
^as rapidly as was anticipated. !Kie dominant species is A. turnhullii . 
Little movement of populations has occurred and most of the nyurphs 
are still concentrated in pastures and other places having a thistle 
cover. . 
Uehraska. (May 19-25 )s In the Sand Hill area, hatching of M, bivjttatus 
and M. mexicanus was beginning on May 13* M. ' confucius is in the third 
and fourth instars in this area and at preslnt is the dominant species 
hatched. Examination of Daws, Sioux, and northern Box Butte Counties 
showed infestations to be comparatively light, with the hatch particular! 
slow in the pine ridge regions. M. differentialis was reported to be 
hatching in spotted areas in the Republican River Valley of Dundee, 
Hitchcock, and Red Willow Counties on May 17* Heavy infestations 
present in southwestern Box Butte, northwestern Morrill,' west-central 
■ Cheyenne, and southwestern Deuel Countiesi Populations up to 175 P^r 
square yard along field margins and 75 per 'square yard in the fields are 
•present} however, except for alfalfa and idle lands, most 'infestations 
are marginal. The hatch of M, differentialis has just begun in the 
Panhandle area of the State. Cool, cloudy, and windy weather has cur- 
tailed grasshopper activities and damage is just beginnirig to show in 
marginal weeds and grasses. In the central portion of the State, *hopper 
were dispersing from margins several yards into wheatfields and injury 
to grain was noticeable. In the extreme northeastern portion of the 
State, grasshopper development has advanced little since last week. 
The predominating' species, M. differentialis , is in the eye-spot stage. 
Adult M, mexicanus were reported near Oxford, in Purnas County, on 
May 23. Hatch of the predominating species, A. turnbullii ,. in the 
Beaver-Republican Valley area is 6o ‘percent complete, Iii southwestern 
Nebraska the Infestations are developing rapidly. Heavy mortality 
of nymphs hatching in worked fields in the Panhandle area has been 
observed in several instances. 
North Dakota. (May 12-18); Hatching of M. mexicanus and M. bivittatus , was 
general throughout the southern counties of the State and in more 
favorable locations in the northeastern counties. Nymphs of M» mexicanus 
^were reported in the northwest corner of the State, in Divide County, 
on May 15* Predator! zatibn in the northwestern counties of the State 
is very evident, with, samples showing 1+ or '5 pods destroyed by beefly 
or ground beetles. In some fields populations haVe been reduced as 
much as 60 percent. Throughout the north-central portion of the State, 
hatching has been delayed by rains and low temperatures. The majority 
of the M. mexicanus eggs in this area are in the milk stage, and a 
general”“hatch is predicted around May 25* (May 19-25)s Cool weather, 
with scattered rains over most of the eastern portion of the State during 
the week, permitted only very light hatching in the more favorable 
areas. No hatching was observed in the northern tier of counties and 
most of the M. miaxicanus eggs in these counties are still in the 
