California Agriculture, July 1978

Volume 32, Number 7

peer-reviewed research articles

Long-range dispersal of pink bollworm into the San Joaquin Valley
by Vern Stern , Vahram Sevacherian
pp4-5, doi#10.3733/ca.v032n07p4
Abstract
Late summer storms carry the pink bollworm into the San Joaquin Valley. Cotton growth studies indicate this pest has less potential for damage in the San Joaquin Valley than in the southern desert valleys.
Expanded Abstract | PDF

Utilizing irrigated pasture for beef heifers to be bred as yearlings
by John L. Hull , Charles A. Raguse
pp6-8, doi#10.3733/ca.v032n07p6
Abstract
Although irrigated pasture is a good diet, energy supplementation will increase the average daily gain of growing heifers after weaning.All phases of management, genetics, and nutrition must be considered if rearing replacement heifers for early breeding is to be successful.
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Ethephon hastens maturation of Thompson Seedless raisin grapes
by Ghazi I. El-Banna , Robert J. Weaver
pp9, doi#10.3733/ca.v032n07p9
Abstract
In a study designed to determine whether ungirdled Thompson Seedless grapes ripen faster (as measured by OBrix) as a result of ethephon sprays, it was determined that sugar accumulates earlier in treated grapes.
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Energy supplies for milking parlors
by William C. Fairbank , Richard N. Eide , Gale G. Gurtle , Herbert S. Etchegaray
pp10-11, doi#10.3733/ca.v032n07p10
Abstract
A survey of southern San Joaquin Valley dairies, many of which operate 16 to 20 hours a day, shows that few have an adequate standby power system t o carry them through a power outage or fuel interruption of more than a few hours.
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Silvicultural treatments to reduce losses to bark beetle
by Jordan Lang , Robert C. Heald , Edward Stone , Donald L. Dahlsten , Robin Akers
pp12-13, doi#10.3733/ca.v032n07p12
Abstract
Using the “aggregation” approach to characterize groups of Ponderosa pines, researchers at the Blodgett Forest Research Station are studying the effects of thinning on beetle-caused mortality.
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Rumensin benefits new feedlot calves
by Donald G. Addis , Carol L. Adams
pp14-15, doi#10.3733/ca.v032n07p14
Abstract
A method is discussed for adding Rumensin t o a 72-percent-concentrate receiving ration for newly arrived feedlot replacement calves, without adversely affecting feed consumption, body weight gain, or animal health.
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Big vein disease of lettuce in Imperial Valley
by Demetrios G. Kontaxis
pp16-17, doi#10.3733/ca.v032n07p16
Abstract
Only 12 percent of the lettuce plants infected with big vein develop into a marketable crop. A systemic fungicide controls the disease, whereas fumigants appear t o favor big vein of lettuce.
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Users place high value on federal-state market news
by James H. Cothern
pp18, doi#10.3733/ca.v032n07p18
Abstract
California producers and related agricultural industries use market news to make a variety of marketing decisions, according to a University' of California survey.
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Thinning methods influence celery-stalk size
by Norman C. Welch , John W. Inman
pp19, doi#10.3733/ca.v032n07p19
Abstract
Size discrepancy in celery at harvest time is costly t o growers. Early thinning results in the most uniform sizes a t harvest and highest yield in weight.
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editorial, news, letters & science briefs

EDITORIAL: The farmer-consumer link in agricultural research
by J. B. Kendrick
pp2, doi#10.3733/ca.v032n07p2
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General Information

Research in progress
Editors
pp20, doi#10.3733/ca.v032n07p20
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