Calag Archive

Management decisions can reduce blanking in rice

by James E. Board, Maurice L. Peterson

Abstract

Early maturing, short-stature varieties; careful water management, and moderate use of nitrogen reduce excessive blanking.

Blackline of English walnut trees traced to graft-transmitted virus

by S. M. John Mircetich, James Refsguard, Michael E. Matheron

Abstract

Studies show that blackline can be spread from diseased to healthy trees by budding or grafting as well as by natural means.

Pyrethroid resistance persists in spider mite predator

by Marjorie A. Hoy, Nancy F. Knop, John L. Joos

Abstract

Spider mite predators laboratory-selected for pyrethroid resistance successfully overwintered in a northern California apple orchard.

Bioconversion: Tilapia fish turn insects and weeds into edible protein

by E. Fred Legner, Frank W. Pelsue

Abstract

Feeding voraciously on chironomid midges or on aquatic weeds, two

Testing chrysanthemums for disease resistance

by Thomas G. Byrne, Arthur H. McCain, Thomas M. Kretchun

Abstract

Chrysanthemum cultivars were evaluated for resistance to Verticillium wilt and black rust.

Oroblanco: A new grapefruit hybrid

by Robert K. Soost, James W. Cameron

Abstract

An early-maturing cross of primmelo and grapefruit, Oroblanco has been released for use in interior citrus areas. It may be suitable for other intermediate climate zones.

Snail against snail

by Theodore W. Fisher, Robert E. Orth, Stuart C. Swanson

Abstract

The decollate snail feeds on brown garden snail without harming healthy plants or fruit.

California red scale predator may create citricola control dilemma

by Harold S. Elmer, O. L. Brawner, William H. Ewart

Abstract

Citricola scale, now held in check by chemical controls for California red scale, could again become a major Central Valley citrus pest if a red scale predator is established.

Economic evaluation of mosquito control programs

by Mohammed E. Sarhan, Richard E. Howitt, Charles V. Moore, Carl J. Mitchell

Abstract

Studies with statistical models show source reduction to be more economically efficient than chemical controls.

Tomatoes make efficient use of applied nitrogen

by Francis E. Broadbent, Kent B. Tyler, Donald M. May

Abstract

Although tomatoes are not as dependent on added nitrogen as other crops are, tests with labeled N show that they do make efficient use of nitrogen fertiher applications.

Larger sprinkler nozzles can save energy

by Blaine R. Hanson, Herbert Schulbach, Carl W. Rimbey, Kent Kaita

Abstract

Increasing nozzle diameter can save a considerable amount of energy by reducing pump operating time, if adequate pressure can be maintained.

Delayed grazing may improve upland waterfowl habitat

by George B. Ruyle, John W. Menke, Donald L. Lancaster

Abstract

Delaying cattle grazing until mid-July in wetlands and surrounding uplands of Modoc National Forest helped preserve vegetation needed by migratory waterfowl for nesting.

Management decisions can reduce blanking in rice

by James E. Board, Maurice L. Peterson

Abstract

Early maturing, short-stature varieties; careful water management, and moderate use of nitrogen reduce excessive blanking.

Blackline of English walnut trees traced to graft-transmitted virus

by S. M. John Mircetich, James Refsguard, Michael E. Matheron

Abstract

Studies show that blackline can be spread from diseased to healthy trees by budding or grafting as well as by natural means.

Pyrethroid resistance persists in spider mite predator

by Marjorie A. Hoy, Nancy F. Knop, John L. Joos

Abstract

Spider mite predators laboratory-selected for pyrethroid resistance successfully overwintered in a northern California apple orchard.

Bioconversion: Tilapia fish turn insects and weeds into edible protein

by E. Fred Legner, Frank W. Pelsue

Abstract

Feeding voraciously on chironomid midges or on aquatic weeds, two

Testing chrysanthemums for disease resistance

by Thomas G. Byrne, Arthur H. McCain, Thomas M. Kretchun

Abstract

Chrysanthemum cultivars were evaluated for resistance to Verticillium wilt and black rust.

Oroblanco: A new grapefruit hybrid

by Robert K. Soost, James W. Cameron

Abstract

An early-maturing cross of primmelo and grapefruit, Oroblanco has been released for use in interior citrus areas. It may be suitable for other intermediate climate zones.

Snail against snail

by Theodore W. Fisher, Robert E. Orth, Stuart C. Swanson

Abstract

The decollate snail feeds on brown garden snail without harming healthy plants or fruit.

California red scale predator may create citricola control dilemma

by Harold S. Elmer, O. L. Brawner, William H. Ewart

Abstract

Citricola scale, now held in check by chemical controls for California red scale, could again become a major Central Valley citrus pest if a red scale predator is established.

Economic evaluation of mosquito control programs

by Mohammed E. Sarhan, Richard E. Howitt, Charles V. Moore, Carl J. Mitchell

Abstract

Studies with statistical models show source reduction to be more economically efficient than chemical controls.

Tomatoes make efficient use of applied nitrogen

by Francis E. Broadbent, Kent B. Tyler, Donald M. May

Abstract

Although tomatoes are not as dependent on added nitrogen as other crops are, tests with labeled N show that they do make efficient use of nitrogen fertiher applications.

Larger sprinkler nozzles can save energy

by Blaine R. Hanson, Herbert Schulbach, Carl W. Rimbey, Kent Kaita

Abstract

Increasing nozzle diameter can save a considerable amount of energy by reducing pump operating time, if adequate pressure can be maintained.

Delayed grazing may improve upland waterfowl habitat

by George B. Ruyle, John W. Menke, Donald L. Lancaster

Abstract

Delaying cattle grazing until mid-July in wetlands and surrounding uplands of Modoc National Forest helped preserve vegetation needed by migratory waterfowl for nesting.

Calag Archive

Calag Archive

Peer-reviewed research and review articles

News and opinion

Peer-reviewed research and review articles

News and opinion