Annual report of the Agricultural Experiment Station of the University of Minnesota . t the Lesser Migratory Locust (second onlyto the Rocky Mountain Locust in destructiveness) gets in its workand always will in favorable seasons unless compulsory plowingis resorted to. These are the conditions which prevail at Gen-Lilly near Crookston, in Polk county, and more particularly in theHill River district twelve miles northeast from Mcintosh in thesame county. At Gentilly on June 26th I found the Lesser Migra-tory Locust abundant and causing injury upon all well drained,sandy ridges where the eggs w
Annual report of the Agricultural Experiment Station of the University of Minnesota . t the Lesser Migratory Locust (second onlyto the Rocky Mountain Locust in destructiveness) gets in its workand always will in favorable seasons unless compulsory plowingis resorted to. These are the conditions which prevail at Gen-Lilly near Crookston, in Polk county, and more particularly in theHill River district twelve miles northeast from Mcintosh in thesame county. At Gentilly on June 26th I found the Lesser Migra-tory Locust abundant and causing injury upon all well drained,sandy ridges where the eggs were not spoiled by wet weather last INSECTS INJURIOUS IN 1902. 19 spring. On the farm of Eli Benoit wheat next the stubble aswell as beans, barley and young flax were eaten. It was however in the Hill River district near Lindsay P. farmers suffered the most. Here a tract extending one-halfmile east and west and two miles north and south was almost sweptof vegetation. Young flax, grass, wheat, barley and oats weremowed down and at the date of my visit, June 26th, the farmers. Fig. 12.—View of flax field near Gentilly, one-third of which has been eaten by grasshoppers. were complaining bitterly of a 300 acre piece of stubble which hadbeen allowed to lie fallow for two years or more and was veryevidently the breeding ground of the pest. In places I found theground brown with young hoppers not yet ready to fly, and thearea referred to presented a scene of desolation not easily forgot-ten. These young hoppers were working south and on each suc-ceeding visit I found their limit to be further south. Farmers in this neighborhood worked heroically in the fightagainst the unwelcome visitation and about 800 gallons of oil wasdistributed by the Entomologist through the county commisson-crs. This oil was judiciously used, but the numbers of the insects 20 INSECTS INJURIOUS IN 1902. were legion, and although the hopper-dozers were run back andforth over the grain all day and day aft
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