Electronic devices to detect fruit maturity

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

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

New California pest sorghum midge found in San Joaquin Valley

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