Life Sciences Commons^™

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.

A Study Of Insects Attacking Pinus Flexilis James Cones In Cache National Forest, Thomas Evan Nebeker

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Six species of insects were found attacking limber pine cones from July 26, 1968, through October 4, 1969, in Cache National Forest. The three species considered of major importance are: Conophthorus flexilis Hopkins, Dioryctria abietella (D. & S.), and D. sp. near or disclusa Heinrich. The three minor species encountered are; Bradysia sp., Trogoderma parabile Beal, and Asynapta keeni (Foote). In addition to the major and minor cone pests three parasites, Apanteles sp. prob. starki Mason, Elacherus sp., and Hypopteromalus percussor Girault were found associated with the cone pests.

C. flexilis, which completely destroys the cone, was ranked as …

The Evolution Of Parasitism Among Bees, George E. Bohart

Faculty Honor Lectures

Before discussing parasitic bees, I will present a rough outline of the biology of "ordinary" or non-parasitic bees. The superfamily Apoidea (bees) includes perhaps 25,000 or 30,000 species divided into nine families by recent authorities (Stephen, Bohart, Torchio, 1969) . A common biological thread holding this vast assemblage together is the provision by adults of pollen and nectar for their young. Only in the honey bees (the genus Apis which includes four species) are the larvae fed primarily on a different substance (a secretion of the pharyngeal glands) , and even this is derived from pollen and honey eaten by …

Pollination Of Onion Seed Affected By Environmental Stresses, William P. Nye

All PIRU Publications

No abstract provided.

Should Beekeepers Keep Wild Bees For Pollination?, George E. Bohart

All PIRU Publications

No abstract provided.

The Influence Of Photoperiod On The Flight Activity Of Honeybees, J. A. Kefuss, William P. Nye

All PIRU Publications

No abstract provided.

Fire Weather : A Guide For Application Of Meteorological Information To Forest Fire Control Operations, Mark J. Schroeder, Charles C. Buck

The Bark Beetles, Fuels, and Fire Bibliography

Weather is never static. It is always dynamic. Its interpretation is an art. The art of applying complex information about weather to the equally complex task of wildland fire control cannot be acquired easily-especially not by the mere reading of a book. The environment is in control in wildland firefighting. Free-burning fires are literally nourished by weather elements, atmospheric components, and atmospheric motion. Outguessing mother nature in order to win control is an extremely difficult task. We need to soothe her with understanding. We have attempted to present information in such a way that your daily and seasonal awareness of …

The Ethology Of The Wasp, Pseudomasaris Edwardsii (Cresson), And A Description Of Its Immature Forms (Hymenoptera: Vespoidea, Masaridae), Phillip F. Torchio

All PIRU Publications

In a greenhouse, each nest of Pseudomasaris edwardsii (Cresson) was constructed of nectar-moistened soil, was solitary and was placed in open but concealed niches attached to a variety of substrates. The wasp anchored her egg by its posterior tip to the bottom of the cell, deposited a jellylike cylindrical provision composed of Phacelia pollen and nectar and constructed a cell cap. Soil carried to the nest was attached to the post genal surfaces of the female's head, and the pollen and nectar were transported in her honey stomach. Cells were clustered and attached to each other and to the substrate …

Commercial Production And Management Of Wild Bees--A New Entomological Industry, George E. Bohart

All PIRU Publications

No abstract provided.

The Evolution Of Parasitism Among Bees, George E. Bohart

All PIRU Publications

No abstract provided.

Selective Breeding Of Honeybees For Alfalfa Pollen Collection: With Tests In High And Low Alfalfa Pollen Collection Regions, William P. Nye, O. Mackensen

All PIRU Publications

No abstract provided.

The Development Of The Alfalfa Pollen-Collecting (Apc) Honey Bee, William P. Nye

All PIRU Publications

No abstract provided.