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