Resistance of lygus bugs in seed alfalfa to toxicity of toxaphene

Bacon, O; Swift, J; Burton, V

Resistance of lygus bugs in seed alfalfa to toxicity of toxaphene

Authors

Oscar G. Bacon
J. E. Swift
Vernon E. Burton

Authors Affiliations

Oscar G. Bacon is Associate Professor of Entomology, University of California, Davis; J. E. Swift is Extension Entomologist, University of California, Berkeley; Vernon E. Burton is Farm Advisor, Kern County, University of California.

Publication Information

Hilgardia 14(2):5-6. DOI:10.3733/ca.v014n02p5. February 1960.

PDF of full article, Cite this article

Abstract

In parts of the alfalfa seed producing areas in the southern San Joaquin and Sacramento valleys, toxaphene has lost some of its original toxicity to lygus bugs. Where such toxicity loss occurs, toxaphene applied early in the year generally provides satisfactory control, but when applied late in the season control of the lygus bugs is poor.

Also in this issue:

Grower cooperative bargaining associations part of increasing economic integration

Possible virus dissase in European red mite

Problem of control of cyclamen mite on strawberries, complicated

Weighing tank measures water use by crops under changing conditions

Young redwoods in coastal fog belt

Study of scale insect pests directed toward improved control

Synthesis of the toxic component in sorghums

Sprouting of chamise in relation to regrowth

Phenol compounds in incense cedar

Certain desert plants wage chemical warfare against competing plants

Biological studies of rodent pests of agriculture

Resistance to acaricides by European red mite studied in Bartlett pear field plots

Larger strawberries through plant breeding

Late infection of curly top in field melons in producing areas of desert valleys

Field heat removed rapidly by Forced-Air Cooling of vine-ripe tomatoes

Effects of two systemic pesticides on cotton studied in field tests

Control of fabric-feeding Insects by neutralizing vitamins in fibers

Seasonal changes of micronutrient concentrations in Washington Navel orange leaves

Enzymes as a feed additive for finishing beef cattle failed to show significant benefit in feed lot trials

Chlorate distribution and the effect of nitrate concentration on chlorate toxicity in soil columns

Movement of carbon disulfide vapor in soils