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January-February 1982
Volume 36, Number 1

Peer-reviewed research and review articles

Chemical and cultural control of kikuyugrass in turf

by David W. Cudney, Victor A. Gibeault, Richard L. Baldwin, James R. Breece

Abstract

A combination of herbicidal treatments and overseeding with tall fescue controlled established kikuyugrass in turf.

Rice sterility varies with area and variety

by James E. Board, Maurice L. Peterson

Abstract

Of the four commercial rice varieties tested for sterility, or blanking, some were more susceptible than others to cold night temperatures.

Large-scale releases of pesticide-resistant spider mite predators

by Marjorie A. Hoy, William W. Barnett, Wilbur O. Reil, Darryl Castro, Daniel Cahn, Lonnie C. Hendricks, Richard Coviello, Walter J. Bentley

Abstract

Success in mass-rearing and releasing genetically improved predators in almond orchards brings full-scale implementation nearer.

Research also showed for the first time that mite predators planted in almond orchards can disperse aerially.

Monitoring and modeling oriental fruit moth in California

by Richard E. Rice, William W. Barnett, Donald L. Flaherty, Walter J. Bentley, Richard A. Jones

Abstract

Using traps to monitor OFM in orchards and a model to predict temperature- influenced development will improve timing of controls.

Traps monitor OFM, and the model predicts development to aid in timing of controls.

Monitoring and modeling San Jose scale

by Richard E. Rice, Donald L. Flaherty, Richard A. Jones

Abstract

Like the oriental fruit moth model, this technique for timing sprays against San Jose scale needs perfecting but is useful now.

Despite some data gaps, as in the OFM model, this technique has some application now.

Spider mites can reduce strawberry yields

by Frank V. Sances, Nick C. Toscano, Larry F. LaPr, Earl R. Oatman, Marshall W. Johnson

Abstract

Stress caused by spider mite feeding reduced strawberry yields, especially when mites built up rapidly and early in the season.

Strawberry plants are particularly susceptible to rapid spider mite buildup early in the season. The resulting stress reduces quantity and quality of harvestable fruit.

Update: Oat hay variety trials

by Carl A. Schoner, Thomas E. Kearney, Melvin R. George

Abstract

The three standard and two new oat varieties tested all produced high-quality hay. Each had particular advantages.

Varieties and time of harvest were evaluated for influence on yield. All varieties performed well.

Late-fall nitrogen application in vineyards is inefficient

by William L. Peacock, Francis E. Broadbent, L. Peter Christensen

Abstract

The increasingly popular practice of late-fall instead of spring N application in vineyards is inefficient because of leaching losses.

Eureka, a sweet potato resistant to soil rot (pox)

by Robert W. Scheuerman, Teme P. Hernandez, Weston J. Martin, Christopher Clark, Roysell Constantin, Harell Hammett

Abstract

Eureka can produce a crop in afield severely infested with soil rot (pox), where nonresistant sweet potato cultivars would fail.

News and opinion

The next eraan era of limits

by J. B. Kendrick

General Information

Donations for agricultural research July 1, 1980-June 30, 1981

by Warren E. Schoonover

Peer-reviewed research and review articles

Chemical and cultural control of kikuyugrass in turf

by David W. Cudney, Victor A. Gibeault, Richard L. Baldwin, James R. Breece

Abstract

A combination of herbicidal treatments and overseeding with tall fescue controlled established kikuyugrass in turf.

Rice sterility varies with area and variety

by James E. Board, Maurice L. Peterson

Abstract

Of the four commercial rice varieties tested for sterility, or blanking, some were more susceptible than others to cold night temperatures.

Large-scale releases of pesticide-resistant spider mite predators

by Marjorie A. Hoy, William W. Barnett, Wilbur O. Reil, Darryl Castro, Daniel Cahn, Lonnie C. Hendricks, Richard Coviello, Walter J. Bentley

Abstract

Success in mass-rearing and releasing genetically improved predators in almond orchards brings full-scale implementation nearer.

Research also showed for the first time that mite predators planted in almond orchards can disperse aerially.

Monitoring and modeling oriental fruit moth in California

by Richard E. Rice, William W. Barnett, Donald L. Flaherty, Walter J. Bentley, Richard A. Jones

Abstract

Using traps to monitor OFM in orchards and a model to predict temperature- influenced development will improve timing of controls.

Traps monitor OFM, and the model predicts development to aid in timing of controls.

Monitoring and modeling San Jose scale

by Richard E. Rice, Donald L. Flaherty, Richard A. Jones

Abstract

Like the oriental fruit moth model, this technique for timing sprays against San Jose scale needs perfecting but is useful now.

Despite some data gaps, as in the OFM model, this technique has some application now.

Spider mites can reduce strawberry yields

by Frank V. Sances, Nick C. Toscano, Larry F. LaPr, Earl R. Oatman, Marshall W. Johnson

Abstract

Stress caused by spider mite feeding reduced strawberry yields, especially when mites built up rapidly and early in the season.

Strawberry plants are particularly susceptible to rapid spider mite buildup early in the season. The resulting stress reduces quantity and quality of harvestable fruit.

Update: Oat hay variety trials

by Carl A. Schoner, Thomas E. Kearney, Melvin R. George

Abstract

The three standard and two new oat varieties tested all produced high-quality hay. Each had particular advantages.

Varieties and time of harvest were evaluated for influence on yield. All varieties performed well.

Late-fall nitrogen application in vineyards is inefficient

by William L. Peacock, Francis E. Broadbent, L. Peter Christensen

Abstract

The increasingly popular practice of late-fall instead of spring N application in vineyards is inefficient because of leaching losses.

Eureka, a sweet potato resistant to soil rot (pox)

by Robert W. Scheuerman, Teme P. Hernandez, Weston J. Martin, Christopher Clark, Roysell Constantin, Harell Hammett

Abstract

Eureka can produce a crop in afield severely infested with soil rot (pox), where nonresistant sweet potato cultivars would fail.