California Agriculture, December 1959

Volume 13, Number 12
Three-year spray program to control blue oak.

research articles

Aircraft spraying of blue oak: Phenoxy herbicides found most effective when applied in May for three successive years, followed by ground-rig clean up
by O. A. Leonard , C. E. Carlson
pp3, doi#10.3733/ca.v013n12p3
Abstract
Abstract Not Available – First paragraph follows: Conversion from brush to forage land may be aided by a broadcast spray that can kill most of the woody plants.
Expanded Abstract | PDF

Ozone stipple of grape leaf: Lesions on the upper leaf surfaces and premature leaf fall occur on grapevines in areas polluted by air-borne ozone
by B. L. Richards , John T. Middleton , W. B. Hewitt
pp4-11, doi#10.3733/ca.v013n12p4
Abstract
Abstract Not Available – First paragraph follows: Grape leaf stipple occurs in the vicinity of Los Angeles and San Francisco.
Expanded Abstract | PDF

Semen quality in beef bulls: Tests with young and older bulls, based on percentages of living, motile, and abnormal sperm and breeding efficiency
by P. T. Cupps , B. McGowan , D. F. Rahlmann
pp5-6, doi#10.3733/ca.v013n12p5
Abstract
Abstract Not Available – First paragraph follows: Poor quality semen can be produced by bulls of any age, but recovery in 3-6 months was found in nearly half of such bulls that could be retested.
Expanded Abstract | PDF

Spray for soil erosion control: Surface spray of polyvinyl alcohol stabilizes soils on banks or lawn area without injury to plants or to seed germination
by John J. Stark
pp6, doi#10.3733/ca.v013n12p6
Abstract
Abstract Not Available – First paragraph follows: Tests with Elvanol, grade 71-30, indicate that the material might replace straw and wire for control of water or wind erosion. It has been applied on newly seeded lawn areas and on previously planted" banks without apparent plant injury or reduction of seed germination.
Expanded Abstract | PDF