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Entomology Commons

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Articles 1 - 30 of 31

Full-Text Articles in Entomology

Insect Pollinators Of Alfalfa Grown For Seed, George E. Bohart, William P. Nye Apr 1976

Insect Pollinators Of Alfalfa Grown For Seed, George E. Bohart, William P. Nye

All PIRU Publications

No abstract provided.


Utilization Of Additional Species And Populations Of Leafcutter Bees For Alfalfa Pollination, Frank D. Parker, P. F. Torchio, William P. Nye, M. Pedersen Jan 1976

Utilization Of Additional Species And Populations Of Leafcutter Bees For Alfalfa Pollination, Frank D. Parker, P. F. Torchio, William P. Nye, M. Pedersen

All PIRU Publications

No abstract provided.


Insect Pollination And Seed Set Of Onions (Allium Cepa L.), William P. Nye, N. S. Shasha'a, W. F. Campbell, A. R. Hamson Jan 1973

Insect Pollination And Seed Set Of Onions (Allium Cepa L.), William P. Nye, N. S. Shasha'a, W. F. Campbell, A. R. Hamson

All PIRU Publications

No abstract provided.


Efficiency Of Alfalfa Pollination By Different Species Of Bees, William P. Nye Oct 1972

Efficiency Of Alfalfa Pollination By Different Species Of Bees, William P. Nye

All PIRU Publications

No abstract provided.


Nectar And Pollen Plants Of Utah, William P. Nye Mar 1971

Nectar And Pollen Plants Of Utah, William P. Nye

All PIRU Publications

No abstract provided.


Factors Affecting Pollination Of Onions In Idaho During 1969, William P. Nye, G. D. Waller, N. D. Waters Jan 1971

Factors Affecting Pollination Of Onions In Idaho During 1969, William P. Nye, G. D. Waller, N. D. Waters

All PIRU Publications

No abstract provided.


The Pollination Requirements Of Insect-Pollinated Seed Crops, George E. Bohart Jan 1971

The Pollination Requirements Of Insect-Pollinated Seed Crops, George E. Bohart

All PIRU Publications

No abstract provided.


Pollen Collection From Alsike Clover By High And Low Alfalfa Pollen Collecting Lines And By A Commercial Line Of Honey Bees, William P. Nye Jan 1971

Pollen Collection From Alsike Clover By High And Low Alfalfa Pollen Collecting Lines And By A Commercial Line Of Honey Bees, William P. Nye

All PIRU Publications

The collection of alsike clover pollen by high alfalfa pollen collecting (APe) and low alfalfa pollen collecting lines of honeybees and by bees from commercial colonies were compared at Donnelly, Idaho, U.S.A., in an area where alsike clover was flowering. All three lines collected an overwhelmingly high percentage of alsike clover pollen (92-99 %), and there were no significant differences between them. A limited amount of rape pollen was collected every day by all groups, and also a small amount of dandelion pollen on one or two days. Only one (high APC) colony collected pollen from a small nearby field …


Onion Pollination As Affected By Different Levels Of Pollinator Activity, George E. Bohart, William P. Nye, L. R. Hawthorn Oct 1970

Onion Pollination As Affected By Different Levels Of Pollinator Activity, George E. Bohart, William P. Nye, L. R. Hawthorn

All PIRU Publications

No abstract provided.


Breeding Honey Bees For Pollination Of Specific Crops, O. Mackensen, William P. Nye Jan 1967

Breeding Honey Bees For Pollination Of Specific Crops, O. Mackensen, William P. Nye

All PIRU Publications

No abstract provided.


The Need For Organized Information On Crop Pollination And Pollinators, George E. Bohart Jan 1966

The Need For Organized Information On Crop Pollination And Pollinators, George E. Bohart

All PIRU Publications

No abstract provided.


Studies On Pollination Of Diploid And Tetraploid Red Clover Varieties In Utah, George E. Bohart Jan 1966

Studies On Pollination Of Diploid And Tetraploid Red Clover Varieties In Utah, George E. Bohart

All PIRU Publications

No abstract provided.


Observations Of The Visits Of Honey Bees And Bumble Bees To Bladder Senna (Colutea Arborescens Lam.), William P. Nye, George E. Bohart Mar 1962

Observations Of The Visits Of Honey Bees And Bumble Bees To Bladder Senna (Colutea Arborescens Lam.), William P. Nye, George E. Bohart

All PIRU Publications

No abstract provided.


Introduction Of Foreign Pollinators, Prospects And Problems, George E. Bohart Jan 1962

Introduction Of Foreign Pollinators, Prospects And Problems, George E. Bohart

All PIRU Publications

No abstract provided.


Management Of Honeybee Colonies For Pollination In Cages, William P. Nye Jan 1962

Management Of Honeybee Colonies For Pollination In Cages, William P. Nye

All PIRU Publications

The use of bees for pollination is extending in various directions, and each extension brings with it new problems to be solved. Infields and orchards, the main problem may be to get the bees to visit all the flowers. In a small plot, this can be ensured by enclosing the plot and a hive of bees in a cage, but special steps are then needed to ensure the well-being of the bees. In this article Mr. Nye, who is on the staff of the Entomology Research Division of the United States Department of Agriculture, describes the colony management necessary. The …


Nectar Sugar Concentration As A Measure Of Pollination Of Alfalfa (Medicago Sativa L.), William P. Nye, M. W. Pedersen Jan 1962

Nectar Sugar Concentration As A Measure Of Pollination Of Alfalfa (Medicago Sativa L.), William P. Nye, M. W. Pedersen

All PIRU Publications

The "visitation rate of honeybees on alfalfa may possibly be measured by determining the sugar concentration of nectar in the honey stomachs of foraging bees. This concentration is shown to be largely controlled by the relative humidity and the time available for nectar evaporation in the alfalfa blossom, which in turn depends on the rate of visitation by honeybees. An adjustment for relative humidity may be necessary in order to compare readings widely separated in time or location. Where conditions are relatively constant from day to day, it may be sufficient to measure the nectar sugar concentration and relative humidity …


Pollination Of Seed Crops By Insects (In Seeds. The Yearbook Of Agriculture), George E. Bohart, Frank E. Todd Jan 1961

Pollination Of Seed Crops By Insects (In Seeds. The Yearbook Of Agriculture), George E. Bohart, Frank E. Todd

All PIRU Publications

No abstract provided.


Research On Legume Pollination, George E. Bohart Jan 1961

Research On Legume Pollination, George E. Bohart

All PIRU Publications

No abstract provided.


Carrot Seed Production As Affected By Insect Pollination, Hawthorn L. R., George E. Bohart, E. H. Toole, William P. Nye, M. D. Levin Jul 1960

Carrot Seed Production As Affected By Insect Pollination, Hawthorn L. R., George E. Bohart, E. H. Toole, William P. Nye, M. D. Levin

All PIRU Publications

No abstract provided.


Insect Pollinators Of Carrots In Utah, George E. Bohart, William P. Nye Apr 1960

Insect Pollinators Of Carrots In Utah, George E. Bohart, William P. Nye

All PIRU Publications

IN THE course of observation at Logan, Utah, on the occurrence and pollinating activities of insects on carrots grown for seed, 334 species representing 71 families, were collected. Most numerous in species were the hymenopterous families and superfamilies Sphecidae, Apoidea, Psammocharidae, Vespidae, and Ichneumonidae, and the dipterous families Syrphidae, Tachinidae, Bombyliidae, Stratiomyidae, and Sarcophagidae. Most numerous in individuals were the dipterous families Syrphidae, Ceratopogonidae, Chloropidae, and Piophilidae and the coleopterous family Coccinellidae. Families and superfamilies represented by the most efficient pollinators were Apoidea, Sphecidae, Syrphidae, and Stratiomyidae. Abundance times efficiency was used as a pollination index for each species. On …


Distance From The Apiary As A Factor In Alfalfa Pollination, M. D. Levin, George E. Bohart, William P. Nye Jan 1960

Distance From The Apiary As A Factor In Alfalfa Pollination, M. D. Levin, George E. Bohart, William P. Nye

All PIRU Publications

Experiments conducted in northern Utah indicated that the distribution of honey bees (Apis mellifera L.) on an alfalfa field is modified by various influences besides distance from the colonies. Because of these other factors, generalizations concerning the effect of distance from colonies on the distribution of foraging honey bees cannot be made on the basis of experiments herein reported. A slight negative relationship between bee populations and distance from colonies in alfalfa fields was found in some of the experiments reported. In two fields where the distance was less than 600 feet, horizontal stratification of the field population …


Managing Alkali Bees For Alfalfa Pollination, George E. Bohart, George F. Knowlton Jan 1960

Managing Alkali Bees For Alfalfa Pollination, George E. Bohart, George F. Knowlton

All PIRU Publications

No abstract provided.


Alfalfa Pollinators With Special Reference To Species Other Than Honey Bees, George E. Bohart Jan 1958

Alfalfa Pollinators With Special Reference To Species Other Than Honey Bees, George E. Bohart

All PIRU Publications

No abstract provided.


The Effect Of Prior Location On Alfalfa Foraging By Honey Bees, M. D. Levin, George E. Bohart Oct 1957

The Effect Of Prior Location On Alfalfa Foraging By Honey Bees, M. D. Levin, George E. Bohart

All PIRU Publications

No abstract provided.


Pollination (In Growing Alfalfa For Seed), George E. Bohart, William P. Nye, Marshall D. Levin Jun 1955

Pollination (In Growing Alfalfa For Seed), George E. Bohart, William P. Nye, Marshall D. Levin

All PIRU Publications

No abstract provided.


Selection Of Pollens By Honey Bees, M. D. Levin, George E. Bohart Jan 1955

Selection Of Pollens By Honey Bees, M. D. Levin, George E. Bohart

All PIRU Publications

No abstract provided.


The Effect Of Competing Pollen Sources On The Number Of Honey Bees Collecting Alfalfa Pollen, George E. Bohart Jan 1954

The Effect Of Competing Pollen Sources On The Number Of Honey Bees Collecting Alfalfa Pollen, George E. Bohart

All PIRU Publications

No abstract provided.


Wild Bees For Pollination Of The Alfalfa Seed Crop In Utah, George E. Bohart, George F. Knowlton Jan 1952

Wild Bees For Pollination Of The Alfalfa Seed Crop In Utah, George E. Bohart, George F. Knowlton

All PIRU Publications

No abstract provided.


Honey Bees For Higher Yields Of Alfalfa Seed In Utah, George E. Bohart, George F. Knowlton Jan 1951

Honey Bees For Higher Yields Of Alfalfa Seed In Utah, George E. Bohart, George F. Knowlton

All PIRU Publications

No abstract provided.


Pollination (In Growing Alfalfa For Seed In Utah), F. E. Todd, George E. Bohart, William P. Nye Jan 1950

Pollination (In Growing Alfalfa For Seed In Utah), F. E. Todd, George E. Bohart, William P. Nye

All PIRU Publications

No abstract provided.