New California pest sorghum midge found in San Joaquin Valley
AuthorsW. H. Lange
V. L. Marble
W. E. Pendery
V. E. Burton
Authors AffiliationsW. H. Lange is Professor of Entomology, University of California, Davis; V. L. Marble is Extension Agronomist, University of California, Davis; W. E. Pendery is Farm Advisor, Tulare County, University of California; V. E. Burton is Extension Entomologist, University of California, Davis.
Hilgardia 15(1):7-9. DOI:10.3733/ca.v015n01p7. January 1961.
The sorghum midge—Contarinia sor-ghicola (Coquillet)—the most important pest of grain sorghums in the Southern states—was found in Tulare county on October 6, 1960. This apparently is the first record of this midge west of New Mexico. Surveys at the time of the initial discovery indicate that it is firmly established in Tulare County and is also present in Madera, Fresno, Kings, and Kern counties.
Also in this issue:Origin, dispersal, and variability of the lima bean, Phaseolus lunatus
University of California research on pear decline organized to find means to control or to live with the disease
Electronic devices to detect fruit maturity
Flight patterns of the peach twig borer
New method for studies on irrigation efficiencies
Blanching as an aid in dewatering forage
Climatic limitations on plant growth evaluated by balancing soil moisture against evaporation and transpiration
Disease of corn, sorghum, and sudangrass head smut established in California
Rapid method of estimating lime requirements of acid soils of California
Leaf analysis as a guide to nitrogen fertilization of oranges
Suspected virus disease rusty blotch of Japanese plums found throughout California