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Minnesota. (May 1^18): Examinations reveal that very little reduction 
in grasshopper populations can he anticipated from egg predatorization 
durihg the winter. Reductions from this source, it is believed, will 
not he greater than 10 percent. Species considered to he M. hivlttsttifl 
and M. packardii have hatched in many sections of the State; few 
M. mexicanus eggs have hatched and hatching of M. differentialis 
Ts not expected to occur until the last week of May^ (May 19**25) J 
The hatch of M. mexicanus and M. hivittatus was general during the 
week throughout the northwestern portion .of • the State. In the counties 
of Marshall, Polk, Jlorman, and Clay, in western Minnesota, there was 
little increase in hopper populations during the last week, because of 
the cold and rainy weather. Nymphs were present from Crookston to 
Moorehe^d in light, sandy soil, or dry fields with thin vegetation, 
with populations ranging from 1 to 10 per square yard in the fields and 
margins. Egg predators have reduced eggs from 20 to 25 percent in 
Pine and south St. Louis Counties. The infestation in the western 
tier of counties in the southwestern portion of the State is general, 
with populations of 30 to 50 hivittatus per square yard fairly 
common. Hatch of M. hivittatus is about 50 percent complete, with 
95 percent of the nymphs in‘ the first instar. M. differentialis is 
expected to begin hatching within a few days. ~ 
Iowa. C. J. Drake (May 21 ): The two-striped grasshopper „(M. hivittatus ) 
and the lesser migratory grasshopper (M. mexicanus ) started hatching 
at Ames on May 13. Survey in western Iowa from May I3 to 16 showed 
that about 10 percent of the eggs had ha'tched. Cool weather and 
heavy growth of vegetation are delaying hatching. Heavy to moderately 
heavy populations occur two to three counties deep along the Missouri 
River from Pottawattamie to the northern part of Iowa. 
B, M. Gaddis and assistants (May 12-18); M, hivittatus and 
M. mexicanus were reported beginning to hatch in northwestern Iowa on 
May 15 . The hatch appeared to he general along the Missouri Valley 
from the mouth of the Platte River northward. (May 19“25)j hivittatue 
was hatching rapidly during the last week in the western and north- 
western section of the State, with populations ranging from 20 to I 50 
per square yard and 90 percent in the first instar. 
Missouri. L. Haseman (May 21): Young ^hoppers observed beginning to hatch 
in some areas in southern Missouri, In central and northern Missouri, 
where little trouble is expected, hatching has not been observed. 
North Dakota. J, A. Munro (May 23)j Hatching has barely started in the 
Pargo area, M. bivittatue and M. mexicanus being most prevalent. Some 
hatching observed in the sandhills area of southeastern North Dakota 
a week ago. Less than 1 percent of the eggs in a field near Langdon 
were hatched, M. mexicanus predominating. In 20 square-foot samples of 
soil taken from various points in a field, 28 egg pods of M. mexicanus 
were found. Only 2 of the samples did not have egg pods. 
