Life Sciences Commons^™

Bulletin No. 379 - Biology And Control Of The Peach Twig Borer (Anarsia Lineatella Zeller) In Utah, Charles J. Sorenson, Farrell H. Gunnell

UAES Bulletins

The peach twig borer, Anarsia lineatella Zeller, sometimes called the peach worm, annually damages peach, apricot, nectarine, prune, and plum orchards in Utah. Many buds and twig terminals are destroyed each spring by the overwintered generation of partially grown larvae. These emerge from their winter quarters almost as soon as host trees begin their spring growth. From the time the fruit becomes about half grown until it is harvested, later generations of twig-borer larvae feed on it causing irregular, gummy cavities which make it unfit for market.

In order to work out a control program for any insect, its life …

Bulletin No. 378 - Labor Structure And Labor Problems: Utah Sheep Ranches, 1952-1953, William A. Dehart, William H. Metzler

UAES Bulletins

This study deals with the problem sheep ranchers have in recruiting workers to meet their labor needs. Consideration is given to the composition of the work force on sheep ranches, to wages, the amount and causes of labor turnover, and to ways to reduce turnover. Labor recruitment practices are also discussed and evaluated in terms of available sources of farm labor, the possibilities of maintaining a stable supply, and the effect of farm labor problems on recent changes in the operations of sheep ranch enterprises. The primary focus of attention is on regular hired labor on Utah sheep ranches, although …

Bulletin No. 376 - Potato Production, Utah 1953: An Economic Analysis, E. M. Morrison, W. G. Kearl

UAES Bulletins

The potato enterprise is important in providing a cash crop and a means of diversifying and intensifying the operations on many of Utah's irrigated farms. It is particularly important in those areas where, because of short growing season or inadequate markets, other intensive crops cannot be produced economically.

Potatoes have accounted for around 2.5 percent of the total cash farm income and around 10 percent of the cash farm income from crop sales over the past several years. The gross value of the crop has been between four and five million dollars in 8 of the last 12 years from …

Chemical Thinning Studies On Peaches In Utah, Ramzi Mustafa Khalidy

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Investigations on chemical thinning of peaches by use of blossom and post blossom sprays have been in progress since the last decade mainly in the United States, Canada, and some European countries. Horticulturists are attempting to find new means to minimize the expense of hand thinning. The high cost of the hand thinning operation has caused many growers to underestimate the importance of this practice, and as a result their orchards have fallen into the biennial bearing habit. In addition, the fruit from un-thinned orchards was not acceptable on the market since it was small in size, lacked color, and …

Factors In The Development And Restoration Of Waterfowl Habitat At Ogden Bay Refuge Weber County, Utah, Noland F. Nelson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Millions of acres of marshland have been destroyed by the industrial and agricultural development of this continent. Drainage, water diversion, land leveling, and some other factors which destroyed waterfowl habitat were in most instances essential steps in man's progress; but water pollution, unwise drainage, and other soil and water abuses were tragic and unessential steps in our history of land exploitation that have destroyed vast acreages of habitat. The future of waterfowl on this continent hinges upon the success of restoration or new marsh development to replace this destroyed habitat.

The Biology And Seasonal Distribution Of Eucalliphora Lilaea (Walker) In Cache County, Utah, Robert P. Olson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The association of: flies with man has been recorded through many centuries. In nearly all of these records the association is one of discord rather than harmony. In the Book of Exodus, 8:24, in the King James version of the Old Testament, we can read, "...and there came grievous swarms of flies into the house of Pharaoh, and into his servants' houses; and in all the land of Egypt the land was corrupted by reason of the swarms of flies." Centuries later the "grievous swarms of flies" 'were associated with a particular disease by Mercurialis. In 1577 he expressed the …

Bulletin No. 374 - Fertilizer Reuirements Of Alfalfa Hay In Utah, R. F. Nielson, J. P. Thorne, G. T. Baird

UAES Bulletins

This bulletin is a report of one phase of research in agronomy. What is agronomy? Agronomy is the science of crop production and soil management and includes a scientific study of all phases of soils and soil conservation, irrigation practices, fertilizer usage, crop rotations, plant breeding, selection and management of new crop varieties, weed control, and other practices that lead to increased production of better quality crops.