The High Plains grasshopper: a compilation of facts about its occurrence and control

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U.S. Dept. of Agriculture, 1958 - 168 էջ
 

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Էջ 17 - Dissosteira longipennis, an insect usually considered rare in collections, and one heretofore only known to occur over the higher portions of the plains lying to the eastward of the ' Rocky Mountains, in the States of Wyoming, Colorado, and New Mexico. This insect, as ascertained from inquiry, covered an area of about 400 square miles of territory in sufficient numbers to materially injure the grasses growing on the ranges of the entire region, and amongst these grasses the species of Bouteloua or...
Էջ 18 - The young began moving, and, finding these open places, congregated there. Having thus congregated, they must naturally feed, and they swept the grasses clean around these spots. So noticeable was this that, in certain spots where they had gathered about the hills of a species of ant which raises mounds of small gravel and cuts away the vegetation for some distance around them, they had enlarged these areas in some places for fully half an acre. This year Messrs. Snow and Popenoe observed them flying...
Էջ 104 - The subject of the food of this Hawk is one of great interest, and considered in its economic bearings is one that should be carefully studied. The Sparrow Hawk is almost exclusively insectivorous except when insect food is difficult to obtain.
Էջ 19 - Caloptenus spretus) and there seems to be no particular reason why, at times, it should not become destructive and fly in vast swarms from one locality to another. So far as past experience justifies calculation, however, it will not do so, and I think there is little reason to fear any continued or widespread injury from this species.
Էջ 121 - Procurements of materials and equipment in connection with cooperative programs with authorities of the states concerned, organizations, or individuals for the control of incipient or emergency outbreaks of insect pests or plant diseases, including grasshoppers, Mormon crickets, and chinch bugs...
Էջ 104 - The Sparrow Hawk is almost exclusively insectivorous except when insect food is difficult to obtain. In localities where grasshoppers and crickets are abundant these hawks congregate, often in moderate-sized flocks, and gorge themselves continuously. Rarely do they touch any other form of food until, either by the advancing season or other natural causes, the grasshopper crop is so lessened that their hunger can not be appeased without undue exertion. Then other kinds of insects and other forms of...
Էջ 160 - Report on the Orthoptera collected by the United States geographical surveys west of the one hundredth meridian, under the direction of Lieutenant George M. Wheeler, during the season of 1875.
Էջ 17 - During the early part of July reports came from the eastern and south-eastern portions of Colorado of locust depredations. The first of these was that trains had been stopped by grasshoppers getting on the rails of the Santa, Fe Railroad 100 miles or thereabouts east of Denver. Shortly after this reports appeared in the newspapers of serious damage being done around the point where they were first mentioned as stopping trains. About this time other reports of depredations came in from North Dakota...
Էջ 28 - Color, (dried after long immersion in alcohol.) — Eeddish yellow. The head and pronotum, especially the dorsal portions, pale reddish, dotted with pale brown. The basal portion of the elytra reddish-yellow, the apical portion pellucid ; marked throughout with dark brown spots somewhat in the form of bands. The wings for a very small space around the immediate base are transparent yellow ; a triangular space at the apex extending inward about one-third of the way to the base pellucid, sprinkled...
Էջ 19 - During t he autumn of 187<>, when the true Migratory Locust was passing over the eastern part of Nebraska, a large specimen of this longwinged 'hopper was seen to alight at West Point, in that State, where the writer was at the time engaged in hay-making. It was captured and shortly afterwards described as (Edipoda nebrascfmiit.

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