22 ELEVENTH ANNUAL REPORT OF THE 
ht ed 
DIVISION OF ENTOMOLOGY. 
The entomologist was called to Ottertail County in June, 
1902, on account of an outbreak of grasshoppers, the county 
commissioners urging that he come at once to do what he 
could to remedy the evil. He found stubble fields filled with 
thousands of the lesser migratory or White Mountain locusts 
(M. atlanis). For the most part they were well along past the 
fourth moult, although some were found considerably younger. 
It is to be noted that these grasshoppers hatched in the old 
stubble. The most threatened area in this vicinity was a tract 
of unplowed stubble containing 240 acres, owned largely by 
non-residents who will not plow. Some farmers were plowing 
thoroughly, but all were very much alarmed at the near pres- 
ence of such a large tract of unplowed land. The situation 
was so serious that, upon consultation with the governor of 
the state and director of the station, it was determined to 
plow this tract at the expense of the state, and thus not only 
avert immediate loss but also reduce, if posible, the number of 
grasshoppers that would otherwise be on hand to do damage 
next year. Accordingly the most threatened tracts, about 200 
acres, were plowed, and it is believed that the result was 
satisfactory, for since that time no complaint has come from 
that part of the county because of grasshoppers. 
On June 26 the entomologist was summoned to Gentilly, 
a town in Pope County, about ten miles from Crookston, 
where the same variety of locust was found, causing injury upon 
all well drained sandy ridges. On one farm it was found that 
the wheat next the old stubble, and beans, barley, and young 
flax, were eaten clean. 
From Gentilly the entomologist went to the Hill River 
district, rear Lindsay postoffice east of Crookston, at the re- 
quest of the county commissioners, where by far the most seri- 
ous conditions found in the state prevailed. Flax, grass, 
wheat, barley and oats were found mowed down by the grass- 
hoppers. At the date of his visit, June 26th, the farmers were 
complaining bitterly of a 300-acre piece of stubble, which had 
been allowed to lie fallow for two years or more. Here the 
grasshoppers were working toward the south, 
