Herbicides for control of annual weeds in California apples and pears
AuthorsA. H. Lange
C. L. Elmore
G. W. Morehead
E. K. Stilwell
S. M. Mcritchie
D. W. Chaney
J. J. Smith
L. C. Hendricks
K. O. Roberts
Authors AffiliationsArthur H. Lange is Extension Weed Control Specialist, Agricultural Extension Service, University of California, Riverside; Clyde L. Elmore is Extension Service Weed Technologist, Davis; Gordon W. Morehead is Farm Advisor, Sacramento County; Edwin K. Stilwell is Farm Advisor, Contra Costa County; Scott M. McRitchie is Farm Advisor, Butte County; David H. Chaney is Farm Advisor, Sutter County; John J. Smith is Farm Advisor, Placer County; Lonnie C. Hendricks is Farm Advisor, Merced County; Kim O. Roberts is Farm Advisor, Sonoma County.
Hilgardia 21(3):10-12. DOI:10.3733/ca.v021n03p10. March 1967.
Pre-emergence herbicides such as simazine and diuron (Karmex) are widely used for annual weed control in commercial apple and pear producing areas outside California. A 1964-65 survey of California orchards showed that very few acres of apples and only about 1000 acres of pears were sprayed for annual-weed control during that winter. Both simazine and diuron have been registered for use in apples and pears by the state of California and USDA. New developments in orchard culture, including hedge-row planting of pears, together with the scarcity of hand labor, have resulted in a recent upsurge of interest on the part of California orchardists.
Also in this issue:Rapida… a new oat crop for California
Whitewash found harmless in applications on walnut leaves
Strains of the Verticillium wilt fungus in California cotton
Precision planting for cannery tomatoes
A progress report… olive yield decline study in Tehama County
Control of powdery mildew on cantaloupe
Control of aphids on barley • economic treatment levels • analysis of yield increases
Lumber grade recovery in a circular-saw mill in California