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
Early-winter pruning results in the highest probability of infection; March pruning, the least.
Chemical control of phomopsis grapevine cane and leaf spot disease
by Jim D. Cucuzza , Mary Ann Sall
Dormant or spring chemical applications controlled phomopsis
Vineyard cultural practices may help reduce botrytis bunch rot
by Steven D. Savage , Mary Ann Sall
Two-wire trellising and midseason hedging help minimize botrytis bunch rot, possibly by influencing the vine's microclimate.
Observations on Bodmin Nu-Pulse milking system
by Thomas A. Shultz , Richard N. Eide , Larry S. Collar
The Bodmin self-adjusting vacuum pulsation unit performed satisfactorily, provided cleaning procedures were followed carefully.
Trunk injection corrects iron deficiency in plum trees
by Frank T. Yoshikawa , Wilbur O. Reil , Leslie K. Stromberg
Injections of ferrous sulfate appear to alleviate iron deficiency for about two years at a cost of 3 per tree.
Celery yields and uniformity are affected by pre-transplant practices
by Norman C. Welch , John W. Inman
Growers can select for easy-to-handle transplants without significantly reducing yield or increasing stalk size variation.
Two insects offer potential biological control of common purslane
by Stephen L. Clement , Robert F. Norris
They stress the weeds, reducing their vigor and seed production.
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
Cotton field trials suggest that economic thresholds should take into account the value of secondary pests as food for predators.
editorial, news, letters & science briefs
The collaborative role of research and extension
by Lowell N. Lewis