California Agriculture, May 1947
Volume 1, Number 6
Control of peach twig borer under continuing study
by Stanley F. Bailey
Not available – first paragraph follows: In the past year or two many new chemicals have entered the field of insecticides but the majority of them are not useful in the control of the peach twig borer.
Extra irrigation is extra expense in prune production
by A. H. Hendrickson , F. J. Veihmeyer
Not available – first paragraph follows: There exists a general idea, that if maintaining moisture in an orchard readily available to the trees at all times is good, the addition of more water to keep the soil moisture relatively high is better.
DDT dust with sulfur is treatment recommended for summer control of greenhouse thrips on avocados
by Walter Ebeling
Not available – first paragraph follows: During the past few years the greenhouse thrips, Heliothrips haemorrhoidalis, has become the most serious of the avocado pests, especially in the areas of greatest concentration of the avocado industry, in San Diego County.
New method for disposal of liquid waste by wineries
by G. L. Marsh
Not available – first paragraph follows: Pilot scale field tests during the past vintage season proved it is possible to eliminate the odor nuisance and the mosquito menace from land disposal of winery liquid wastes, or stillage.
Precision planter for row crop seeds proved successful
by Roy Bainer
Not available – first paragraph follows: Precision planting of small seed row crops is now possible by the use of a metered planter which drops the seed at a pre-selected, uniform spacing in the furrow.
Control of insect pests by means of disease agents
by Edward A. Steinhaus
Not available – first paragraph follows: Biological warfare against certain insect pests by means of disease agents is a relatively unexplored method of insect control.
Rootstocks for marsh grapefruit investigated
by L. D. Batchelor , W. P. Bitters
Not available – first paragraph follows: Two experimental plantings of Marsh grapefruit on several different rootstocks were made in 1928.
Plant analysis as a guide in the fertilization of sugar beets for improved production
by Albert Ulrich
Not available – first paragraph follows: The need for better methods of determining the fertilizer requirements of sugar beets is emphasized whenever a fertilizer program is proposed for a field of beets.
Peach twig borer
Methods of fruit plunt propagation explained
Abstracts of new publications