Walnut aphid investigations: 1951 tests on Payne walnuts help develop economical control program under northern California conditions

Michelbacher, A; Bacon, O; Wade, W

Walnut aphid investigations: 1951 tests on Payne walnuts help develop economical control program under northern California conditions

Authors

A. E. Michelbacher
O. G. Bacon
William Wade

Authors Affiliations

A. E. Michelbacher is Associate Professor of Entomology, University of California College of Agriculture, Berkeley; O. G. Bacon is Assistant Professor of Entomology, University of California College of Agriculture, Berkeley; William Wade is Research Assistant in Entomology and Phraseology, University of California College of Agriculture, Berkeley.

Publication Information

Hilgardia 6(4):6-12. DOI:10.3733/ca.v006n04p6. April 1952.

PDF of full article, Cite this article

Abstract

Satisfactory and economical control of the walnut aphid throughout the season is possible.

Also in this issue:

California crops in 1952: Production capacity attainable this year appraised on basis of trends and changes in past cropping patterns

Improving prune harvesting: Efficiency and cost compared for various hand and mechanical tree shaking and picking methods

Grape bud mite studies: Seasonal cycle searched for weak point to attack pest assumed to be responsible for abnormal growth

Brachyrhinus weevils: Spring spray treatment for pest control on nursery grown azaleas, rhododendrons, camellias, heather, other plants

Insects on baby lima beans: Control experiment using two applications of 5% DDT dust reduced insect injury and increased total yield

Corn earworm control on sweet corn: DDT leads list of effective of insecticides with methods of application as dusts pray important factors

Quick decline studies: Rootstock investigations test various top-root combinations in search of tolerant citrus varieties

Factors affecting California raisin sales and prices, 1922-1929

Factors affecting annual prices of California fresh grapes, 1921-1929