California Agriculture, MARCH-APRIL 1985

Volume 39, Number 3

peer-reviewed research articles

Understanding coyote behavior
by Walter E. Howard , Roy Teranishi , Rex E. Marsh , Jerry H. Scrivner
pp4-7, doi#10.3733/ca.v039n03p4
Abstract
The coyote, Canis latrans, originally found only in the western United States, has followed man and his live-stock south to Costa Rica, east to the Atlantic, and north into Alaska. It is the principal predator of sheep in California. (Cover photo by Barbara Butler)
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Newsletters effective in training 4-H leaders
by Norma Wightman
pp7-8, doi#10.3733/ca.v039n03p7
Abstract
In a 4-H pilot study, in-service training by newsletter increased nutrition knowledge and teaching.
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Citrus flower model may aid in timing pest controls
by Thomas S. Bellows , Joseph G. Morse , Neil V. O'Connell , Donald L. Flaherty
pp9-10, doi#10.3733/ca.v039n03p9
Abstract
A computer predictive model of flower development might harmonize the needs of beekeepers and citrus pest control managers.
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Charcoal root rot limits potential of chickpea in the Central Valley
by Andrew C. Magyarosy , Richard M. Hoover , Joseph G. Hancock
pp11, doi#10.3733/ca.v039n03p11
Abstract
Since high soil temperatures favor the fungus Macrophomina phaseolina, caution is recommended before planting chickpeas in the Central Valley.
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Controlling tadpole shrimp
by Albert A. Grigarick , Joseph H. Lynch , Michael O. Way
pp12-13, doi#10.3733/ca.v039n03p12
Abstract
Efforts to rid California rice fields of this pest have resulted in classic problems.
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Almond hulls produce unexpected results in hog trials
by Chris Calvert , Kent Parker
pp14-15, doi#10.3733/ca.v039n03p14
Abstract
At levels of up to 15 percent of the diet, hulls provided enough energy to maintain maximum growth.
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Managing powdery mildew on begonia
by Demetrios G. Kontaxis
pp16, doi#10.3733/ca.v039n03p16
Abstract
Three fungicides tested controlled powdery mildew on begonia plants for extended periods.
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Pruning time affects development of Chenin blanc vines
by Amand N. Kasimatis , Edward P. Vilas
pp17-18, doi#10.3733/ca.v039n03p17
Abstract
Pruning late (March) instead of early (December) delayed shoot and grape development, but it might still be preferable if it reduced Eutypa dieback.
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Sodium bicarbonate in dairy rations
by Edward J. DePeters , Alan H. Fredeen , Donald L. Bath
pp19-20, doi#10.3733/ca.v039n03p19
Abstract
When dairy cow rations include alfalfa hay, there's little need to add sodium bicarbonate.
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Air pollution causes moderate damage to tomatoes
by Patrick J. Temple , Kris A. Surano , Randall G. Mutters , Gail E. Bingham , Joseph H. Shinn
pp20-22, doi#10.3733/ca.v039n03p20
Abstract
In California's Central Valley, where most processing tomatoes are grown, ozone caused slight damage in one year, none in the next.
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The economic effects of air pollution on annual crops
by Richard E. Howitt , Thomas W. Gossard , Richard M. Adams
pp22-24, doi#10.3733/ca.v039n03p22
Abstract
Growers bear the brunt, but consumers are also affected through changes in prices.
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editorial, news, letters & science briefs

EDITORIAL: Agricultural policy center — friend or foe?
by J. B. Kendrick
pp2, doi#10.3733/ca.v039n03p2
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