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Insects

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Articles 121 - 136 of 136

Full-Text Articles in Entomology

Leaflet No 1001 - Aerial Baiting For The Control Of The Little Plague Grasshopper (Austroicetes Cruciata Sauss), C. F. Jenkins Jan 1950

Leaflet No 1001 - Aerial Baiting For The Control Of The Little Plague Grasshopper (Austroicetes Cruciata Sauss), C. F. Jenkins

Bulletins 1 - 2999

Aeroplanes have been tested for grasshopper control in many parts of the world during the last decade but the insecticides used have been in either dust or spray form.

The aerial distribution of bran bait is quite a recent development in overseas countries and was tried for the first time in Western Australia during the spring of 1949.


Beneficial Insects In Relation To Alfalfa-Seed Production In Utah, George E. Bohart Jan 1948

Beneficial Insects In Relation To Alfalfa-Seed Production In Utah, George E. Bohart

All PIRU Publications

No abstract provided.


A Taxonomic Study Of The Adult Mosquitoes Of Utah County With Notes On The Biology And Distribution Of The More Common Species 1946-1947, Cluff E. Hopla May 1947

A Taxonomic Study Of The Adult Mosquitoes Of Utah County With Notes On The Biology And Distribution Of The More Common Species 1946-1947, Cluff E. Hopla

Theses and Dissertations

In Utah County, information has been lacking concerning the taxonomy and distribution of mosquitoes. With the knowledge of this condition, it is felt that information can be presented which will be of value both to the scienoe of Entomology and the area concerned.


Controlling Stored-Grain Pests On Nebraska Farms, H. D. Tate, D. B. Whelan Nov 1943

Controlling Stored-Grain Pests On Nebraska Farms, H. D. Tate, D. B. Whelan

Nebraska Agricultural Experiment Station: Historical Circulars

Warfare against destructive insects is not ended when grain has been placed in the bin. Here it is subject to attack by stored-grain pests which reduce its weight, feeding quality, and value for seed. These losses become especially serious when large stocks of grain are held for extended periods on farms and in warehouses. This circular describes methods available for handling and storage that will prevent or suppress infestations before they reach serious proportions.


Control Of Stored Grain Pests In Nebraska, M. H. Swenk, D. B. Whelan Apr 1940

Control Of Stored Grain Pests In Nebraska, M. H. Swenk, D. B. Whelan

Nebraska Agricultural Experiment Station: Historical Circulars

At the close of 1939 about twice the amount of wheat was in storage in Nebraska as compared to the close of 1938. Frequently a new crop of grain goes into storage before the preceding older grain leaves the farm, and, due to inadequate storage space, the crops are not kept separated, thus promoting an early infestation of the new grain from the older grain that has become infested. Under such conditions the damage by stored grain pests becomes a matter of unusual importance.


Spraying Tree Fruits, C. C. Wiggans, E. H. Hoppert Mar 1940

Spraying Tree Fruits, C. C. Wiggans, E. H. Hoppert

Nebraska Agricultural Experiment Station: Historical Circulars

The production of sound, clean fruit is unquestionably one of the major problems facing the modern fruit grower. Culture may be neglected and pruning delayed for a time but the omission of sprays for even a single season demonstrates their absolute necessity. This applies equally to the commercial grower and to the farmer or gardener who has only a few trees.


Fifty Years Of Achievement In Agricultural Investigation, R. T. Prescott Mar 1939

Fifty Years Of Achievement In Agricultural Investigation, R. T. Prescott

Nebraska Agricultural Experiment Station: Historical Circulars

In Nebraska, a hustling frontier state in 1887, the legislature hesitated not at all in taking advantage of the provisions of the Hatch Act, and now that fifty years have elapsed since the Station was founded, seventy-five years since the Land Grant College Act was passed and the U. S. Department of Agriculture established, and almost twenty-five years since the Agricultural Extension Service was added, it seems worth while to present a general summary of achievement within the state. The main object will be to show some of the important things that have been learned through the investigations of the …


The Insects And Mites Injurious To Poultry In Nebraska And Their Control, M. H. Swenk, F. E. Mussehl Dec 1928

The Insects And Mites Injurious To Poultry In Nebraska And Their Control, M. H. Swenk, F. E. Mussehl

Nebraska Agricultural Experiment Station: Historical Circulars

There are a number of different kinds of insect and mites (arthropods) that are more or less injurious to poultry in Nebraska. This circular is designed to give practical information concerning these pests and their control.


Spraying Tree Fruits, C. C. Wiggans, E. H. Hoppert Mar 1928

Spraying Tree Fruits, C. C. Wiggans, E. H. Hoppert

Nebraska Agricultural Experiment Station: Historical Circulars

The production of sound, clean fruit is unquestionably one of the major problems facing the modern fruit grower. Culture may be neglected and pruning delayed for a time but the omission of sprays for even a single season demonstrates their absolute necessity. This applies equally to the commercial grower and to the farmer or gardener who has only a few trees.


Insect Pests Of Stored Grains And Their Control, M. H. Swenk Dec 1922

Insect Pests Of Stored Grains And Their Control, M. H. Swenk

Nebraska Agricultural Experiment Station: Historical Circulars

In Nebraska there are about 20 species of insects that injure stored grain more or less. Some are beetles and their larvae, others are the caterpillars of small moths. To the farmer all are "weevil," although that name is really properly applied only to two beetle species-the granary weevil and the rice weevil. The following paragraphs and illustrations will describe the several more important stored grain pests to be found in this State, so that the farmer may recognize the particular pest or pests that are doing the injury to his grain, and may then apply the proper remedy.


Insect Pests Of Stored Grains And Their Control, M. H. Swenk Feb 1922

Insect Pests Of Stored Grains And Their Control, M. H. Swenk

Nebraska Agricultural Experiment Station: Historical Circulars

In Nebraska there are about 20 species of insects that injure stored grain more or less. Some are beetles and their larvae, others are the caterpillars of small moths. To the farmer all are "weevil," although that name is really properly applied only to two beetle species-the granary weevil and the rice weevil. The following paragraphs and illustrations will describe the several more important stored grain pests to be found in this State, so that the farmer may recognize the particular pest or pests that are doing the injury to his grain, and may then apply the proper remedy.


Spermatogenesis Of The Butterfly, Papilio Rutulus, John P. Munson Jan 1906

Spermatogenesis Of The Butterfly, Papilio Rutulus, John P. Munson

All Faculty Scholarship for the College of the Sciences

For a number of years I have been studying the spermatogenesis of Papilio rutulus (pl. 12, fig. 1) not ,with any one single problem especially in view, but with the aim of ascertaining the entire life history of its sperm cell, its various phases of development, its mode of growth and differentiation, the history of its several parts, and its relation to the organism.


A Preliminary Introduction To The Study Of Entomology, Lawrence Bruner Jan 1894

A Preliminary Introduction To The Study Of Entomology, Lawrence Bruner

Department of Entomology: Faculty Publications

This book has been prepared for the purpose of partially supplying a demand that seems to exist here in the West for an elementary work on entomology such as can be used in the public schools and on the farm. It is not an original production, but comprises notes from many sources as they have been gathered by the writer and presented from time to time in talks to his classes in the University of Nebraska and before audiences at farmers' institutes throughout the state. The chapters on remedies and on apple and small grain insects have been compiled and …


On The Reproduction Of Lost Or Mutilated Limbs Of Insects, O. W. Oestlund Jan 1886

On The Reproduction Of Lost Or Mutilated Limbs Of Insects, O. W. Oestlund

Journal of the Minnesota Academy of Science

No abstract provided.


Entomology, R. J. Mendenhall Dec 1878

Entomology, R. J. Mendenhall

Journal of the Minnesota Academy of Science

The manuscript of the inaugural address of President Winchell, delivered January, 1879, was unfortunately destroyed by fire, along with the manuscript and printed pages of the whole of the bulletin for 1878. After some delay, the most of the other manuscripts have been reproduced, and are here combined with the bulletin for 1879. The paper of Mr. Mendenhall, read at the February meeting, was consumed with other manuscripts, in the fire that destroyed Brackett's Block. A few extracts from it appeared in the Minneapolis Tribune of February 5th, 1879, and to that the Bulletin is indebted for the following.


Notes On Entomology, R. J. Mendenhall Dec 1875

Notes On Entomology, R. J. Mendenhall

Journal of the Minnesota Academy of Science

No abstract provided.