California Agriculture, March-April 1982

Volume 36, Number 2

peer-reviewed research articles

Grapevines show seasonal differences in susceptibility to eutypa
by Curtis H. Petzoldt , William J. Moller , Mary Ann Sall
pp4-5, doi#10.3733/ca.v036n02p4
Abstract
Early-winter pruning results in the highest probability of infection; March pruning, the least.
Expanded Abstract | PDF

Chemical control of phomopsis grapevine cane and leaf spot disease
by Jim D. Cucuzza , Mary Ann Sall
pp6-8, doi#10.3733/ca.v036n02p6
Abstract
Dormant or spring chemical applications controlled phomopsis
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Vineyard cultural practices may help reduce botrytis bunch rot
by Steven D. Savage , Mary Ann Sall
pp8-9, doi#10.3733/ca.v036n02p8
Abstract
Two-wire trellising and midseason hedging help minimize botrytis bunch rot, possibly by influencing the vine's microclimate.
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Observations on Bodmin Nu-Pulse milking system
by Thomas A. Shultz , Richard N. Eide , Larry S. Collar
pp10-12, doi#10.3733/ca.v036n02p10
Abstract
The Bodmin self-adjusting vacuum pulsation unit performed satisfactorily, provided cleaning procedures were followed carefully.
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Trunk injection corrects iron deficiency in plum trees
by Frank T. Yoshikawa , Wilbur O. Reil , Leslie K. Stromberg
pp13, doi#10.3733/ca.v036n02p13
Abstract
Injections of ferrous sulfate appear to alleviate iron deficiency for about two years at a cost of 3 per tree.
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Celery yields and uniformity are affected by pre-transplant practices
by Norman C. Welch , John W. Inman
pp14-15, doi#10.3733/ca.v036n02p14
Abstract
Growers can select for easy-to-handle transplants without significantly reducing yield or increasing stalk size variation.
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Two insects offer potential biological control of common purslane
by Stephen L. Clement , Robert F. Norris
pp16-18, doi#10.3733/ca.v036n02p16
Abstract
They stress the weeds, reducing their vigor and seed production.
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Mites: A primary food source for two predators in San Joaquin Valley cotton
by D. Gonzlez , Bonnie Ruth Patterson , Thomas F. Leigh , L. Theodore Wilson
pp18, doi#10.3733/ca.v036n02p18
Abstract
Cotton field trials suggest that economic thresholds should take into account the value of secondary pests as food for predators.
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editorial, news, letters & science briefs

EDITORIAL: The collaborative role of research and extension
by Lowell N. Lewis
pp2, doi#10.3733/ca.v036n02p2
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