Pruning-time studies on grapes: Southern California investigations on relationship between vine pruning time and the so-called grape bud mite problem
AuthorsMartin M. Barnes
Chester L. Hemstreet
Charles L. Turzan
Authors AffiliationsMartin M. Barnes is Assistant Entomologist, University of California College of Agriculture, Riverside; Chester L. Hemstreet is Farm Advisor, San Bernardino County, University of California College of Agriculture; Charles L. Turzan is Senior Laboratory Technician, University of California College of Agriculture.
Hilgardia 6(2):6-14. DOI:10.3733/ca.v006n02p6. February 1952.
Vineyard pruning-time studies in southern California—for the season of 1950 and confirmed in 1951—have shown a relationship between pruning time in head-pruned vineyards and the incidence of so-called bud mite injury. This term was adopted in California following general acceptance of a diagnosis in which the grape bud mite, a physiological strain of Eriophyes vitis (Pgst.), was designated as the causal agent of certain growth abnormalities and crop losses in vineyards.
Also in this issue:Fresh chicken meat: Survey of retail stores in Los Angeles area reveals prices to be unreliable guides to meat quality
Livestock diet utilization: Natural vegetation and cultivated feedstuffs should have favorable ratio to value of animal products they produce
Die-back of blackberries: Study of causes and prevention of disease affecting Boysen and Young trailing blackberries
Codling moth on walnut: 1951 tests compare effectiveness of conventional and air-carrier sprayers on Payne walnuts in northern California
Virus diseases of orchids: Transmission of the virus and observation of leaf and other symptoms reveal rare diseases in California
Citrus rootstock problems: Recommendations change as developments within citrus industry reflect influence of rootstock on tree and fruit
Citrus-root nematode: Effects on young lemon and orange trees studied in inoculation tests under controlled conditions
Cantaloupe fruit set: Relationship to fertilization, seed development, and fruit growth studied to determine causes of drop
The pink bollworm: Insect pest of cotton thrives in dry climates and is difficult to control by application of insecticides
The resistance of varieties and new dwarf races of tomato to curly top (western yellow blight or yellows)