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California Agriculture, Vol. 9, No.1

Opening Ponderosa Pine forest for browse
January 1955
Volume 9, Number 1

Research articles

Brush control in ponderosa pine: Technics of prescribed burns to encourage growth of desirable game browse in second-growth timber
by H. H. Biswell, A. M. Schultz, J. L. Launchbaugh
| Full text HTML  | PDF  
Abstract Not Available – First paragraph follows: Fire as a tool in the multiple-use management of second-growth ponderosa pine is under study in California.
Abstract Not Available – First paragraph follows: Fire as a tool in the multiple-use management of second-growth ponderosa pine is under study in California.
Timber in Humboldt County: Economic appraisal of forest conditions undertaken to investigate development and use of main resource
by Henry J. Vaux
| Full text HTML  | PDF  
Abstract Not Available – First paragraph follows: Seventy per cent of all economic activity in Humboldt County now originates, directly or indirectly, in forest industries. These industries provide jobs for 8,726 people-almost twice as many jobs as the wholesale and retail trades; two and a half times as many jobs as business, personal, and professional services; and over four times as many jobs as agriculture.
Abstract Not Available – First paragraph follows: Seventy per cent of all economic activity in Humboldt County now originates, directly or indirectly, in forest industries. These industries provide jobs for 8,726 people-almost twice as many jobs as the wholesale and retail trades; two and a half times as many jobs as business, personal, and professional services; and over four times as many jobs as agriculture.
Allotments for California rice: Growers must choose between lower market prices and support prices with their production controls
by Gordon R. Sitton
| Full text HTML  | PDF  
Abstract Not Available – First paragraph follows: Few California rice growers—if any, according to available data—could increase their net 1955 farm incomes over those anticipated from lower world prices, by accepting marketing quotas and acreage allotments.
Abstract Not Available – First paragraph follows: Few California rice growers—if any, according to available data—could increase their net 1955 farm incomes over those anticipated from lower world prices, by accepting marketing quotas and acreage allotments.
Cotton phosphate fertilization: New soil test provides reliable and easily applied diagnostic guide to quantity of available phosphate
by D. S. Mikkelsen
| Full text HTML  | PDF  
Abstract Not Available – First paragraph follows: A new soil test that tells how much phosphorus in the soil is available to crops—recently developed at the U.S.D.A. Western Regional Phosphate Laboratory—uses a sodium bicarbonate—baking soda—solution to extract the soil phosphate.
Abstract Not Available – First paragraph follows: A new soil test that tells how much phosphorus in the soil is available to crops—recently developed at the U.S.D.A. Western Regional Phosphate Laboratory—uses a sodium bicarbonate—baking soda—solution to extract the soil phosphate.
Leaf curl plum aphid control: Tests in 1954 season developed spray treatments against insect pest of sudden economic importance
by Harold F. Madsen, James E. DeTar
| Full text HTML  | PDF  
Abstract Not Available – First paragraph follows: An outbreak of the leaf curl plum aphid—Anuraphis helichrysi Ka1t.—occurred in 1953 in Placer County, where a considerable acreage of plums was severely attacked. The aphid—in California for many years but not as a pest of major importance—curls the leaves of the tree in early spring, and new leaf growth is tightly curled during the early summer. As a result of the leaf damage, fruit does not properly develop, and shoot growth is severely stunted.
Abstract Not Available – First paragraph follows: An outbreak of the leaf curl plum aphid—Anuraphis helichrysi Ka1t.—occurred in 1953 in Placer County, where a considerable acreage of plums was severely attacked. The aphid—in California for many years but not as a pest of major importance—curls the leaves of the tree in early spring, and new leaf growth is tightly curled during the early summer. As a result of the leaf damage, fruit does not properly develop, and shoot growth is severely stunted.
Control of nematodes on grapes: Soil fumigation with crop rotation tested as way to protect grape replants against root parasites
by D. J. Raski
| Full text HTML  | PDF  
Abstract Not Available – First paragraph follows: Nematodes—parasitic in and on the roots of grapevines—probably represent one of the most important factors in the premature decline of vineyards in California.
Abstract Not Available – First paragraph follows: Nematodes—parasitic in and on the roots of grapevines—probably represent one of the most important factors in the premature decline of vineyards in California.
Harvest time affects valencias: Yield, fruit size and grade influenced by early, late, or midseason timing of orange harvesting
by Winston W. Jones, Clarence B. Cree
| Full text HTML  | PDF  
Abstract Not Available – First paragraph follows: Delayed harvest of Valencia oranges—if consistently delayed several weeks beyond the point of the legal fruit maturity of eight parts soluble solids to one part citric acid in the juice—seems to result in reduced fruit yield and reduced fruit grade.
Abstract Not Available – First paragraph follows: Delayed harvest of Valencia oranges—if consistently delayed several weeks beyond the point of the legal fruit maturity of eight parts soluble solids to one part citric acid in the juice—seems to result in reduced fruit yield and reduced fruit grade.
California livestock industry: Competitive position of state's industry influenced by transportation rate structure and distribution
by James B. Hassler
| Full text HTML  | PDF  
Abstract Not Available – First paragraph follows: Distance between livestock-producing areas and the dependent demand centers is of major importance because the cost of transportation influences the price received by the producer and the price paid by the consumer—and is one of the strategic factors that bear on the competition between producing areas.
Abstract Not Available – First paragraph follows: Distance between livestock-producing areas and the dependent demand centers is of major importance because the cost of transportation influences the price received by the producer and the price paid by the consumer—and is one of the strategic factors that bear on the competition between producing areas.
External parasites of poultry: Tests indicate malathion may prove to be effective control for common external parasites of poultry
by Deane P. Furman, Lloyd E. Vincent, W. Stanley Coates
| Full text HTML  | PDF  
Abstract Not Available – First paragraph follows: External parasites most commonly infesting poultry in California include the northern fowl mite, the common poultry mite, several kinds of lice—and the chicken tick, which is often called the blue-bug in spite of the fact that it is a true tick.
Abstract Not Available – First paragraph follows: External parasites most commonly infesting poultry in California include the northern fowl mite, the common poultry mite, several kinds of lice—and the chicken tick, which is often called the blue-bug in spite of the fact that it is a true tick.
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California Agriculture, Vol. 9, No.1

Opening Ponderosa Pine forest for browse
January 1955
Volume 9, Number 1

Research articles

Brush control in ponderosa pine: Technics of prescribed burns to encourage growth of desirable game browse in second-growth timber
by H. H. Biswell, A. M. Schultz, J. L. Launchbaugh
| Full text HTML  | PDF  
Abstract Not Available – First paragraph follows: Fire as a tool in the multiple-use management of second-growth ponderosa pine is under study in California.
Abstract Not Available – First paragraph follows: Fire as a tool in the multiple-use management of second-growth ponderosa pine is under study in California.
Timber in Humboldt County: Economic appraisal of forest conditions undertaken to investigate development and use of main resource
by Henry J. Vaux
| Full text HTML  | PDF  
Abstract Not Available – First paragraph follows: Seventy per cent of all economic activity in Humboldt County now originates, directly or indirectly, in forest industries. These industries provide jobs for 8,726 people-almost twice as many jobs as the wholesale and retail trades; two and a half times as many jobs as business, personal, and professional services; and over four times as many jobs as agriculture.
Abstract Not Available – First paragraph follows: Seventy per cent of all economic activity in Humboldt County now originates, directly or indirectly, in forest industries. These industries provide jobs for 8,726 people-almost twice as many jobs as the wholesale and retail trades; two and a half times as many jobs as business, personal, and professional services; and over four times as many jobs as agriculture.
Allotments for California rice: Growers must choose between lower market prices and support prices with their production controls
by Gordon R. Sitton
| Full text HTML  | PDF  
Abstract Not Available – First paragraph follows: Few California rice growers—if any, according to available data—could increase their net 1955 farm incomes over those anticipated from lower world prices, by accepting marketing quotas and acreage allotments.
Abstract Not Available – First paragraph follows: Few California rice growers—if any, according to available data—could increase their net 1955 farm incomes over those anticipated from lower world prices, by accepting marketing quotas and acreage allotments.
Cotton phosphate fertilization: New soil test provides reliable and easily applied diagnostic guide to quantity of available phosphate
by D. S. Mikkelsen
| Full text HTML  | PDF  
Abstract Not Available – First paragraph follows: A new soil test that tells how much phosphorus in the soil is available to crops—recently developed at the U.S.D.A. Western Regional Phosphate Laboratory—uses a sodium bicarbonate—baking soda—solution to extract the soil phosphate.
Abstract Not Available – First paragraph follows: A new soil test that tells how much phosphorus in the soil is available to crops—recently developed at the U.S.D.A. Western Regional Phosphate Laboratory—uses a sodium bicarbonate—baking soda—solution to extract the soil phosphate.
Leaf curl plum aphid control: Tests in 1954 season developed spray treatments against insect pest of sudden economic importance
by Harold F. Madsen, James E. DeTar
| Full text HTML  | PDF  
Abstract Not Available – First paragraph follows: An outbreak of the leaf curl plum aphid—Anuraphis helichrysi Ka1t.—occurred in 1953 in Placer County, where a considerable acreage of plums was severely attacked. The aphid—in California for many years but not as a pest of major importance—curls the leaves of the tree in early spring, and new leaf growth is tightly curled during the early summer. As a result of the leaf damage, fruit does not properly develop, and shoot growth is severely stunted.
Abstract Not Available – First paragraph follows: An outbreak of the leaf curl plum aphid—Anuraphis helichrysi Ka1t.—occurred in 1953 in Placer County, where a considerable acreage of plums was severely attacked. The aphid—in California for many years but not as a pest of major importance—curls the leaves of the tree in early spring, and new leaf growth is tightly curled during the early summer. As a result of the leaf damage, fruit does not properly develop, and shoot growth is severely stunted.
Control of nematodes on grapes: Soil fumigation with crop rotation tested as way to protect grape replants against root parasites
by D. J. Raski
| Full text HTML  | PDF  
Abstract Not Available – First paragraph follows: Nematodes—parasitic in and on the roots of grapevines—probably represent one of the most important factors in the premature decline of vineyards in California.
Abstract Not Available – First paragraph follows: Nematodes—parasitic in and on the roots of grapevines—probably represent one of the most important factors in the premature decline of vineyards in California.
Harvest time affects valencias: Yield, fruit size and grade influenced by early, late, or midseason timing of orange harvesting
by Winston W. Jones, Clarence B. Cree
| Full text HTML  | PDF  
Abstract Not Available – First paragraph follows: Delayed harvest of Valencia oranges—if consistently delayed several weeks beyond the point of the legal fruit maturity of eight parts soluble solids to one part citric acid in the juice—seems to result in reduced fruit yield and reduced fruit grade.
Abstract Not Available – First paragraph follows: Delayed harvest of Valencia oranges—if consistently delayed several weeks beyond the point of the legal fruit maturity of eight parts soluble solids to one part citric acid in the juice—seems to result in reduced fruit yield and reduced fruit grade.
California livestock industry: Competitive position of state's industry influenced by transportation rate structure and distribution
by James B. Hassler
| Full text HTML  | PDF  
Abstract Not Available – First paragraph follows: Distance between livestock-producing areas and the dependent demand centers is of major importance because the cost of transportation influences the price received by the producer and the price paid by the consumer—and is one of the strategic factors that bear on the competition between producing areas.
Abstract Not Available – First paragraph follows: Distance between livestock-producing areas and the dependent demand centers is of major importance because the cost of transportation influences the price received by the producer and the price paid by the consumer—and is one of the strategic factors that bear on the competition between producing areas.
External parasites of poultry: Tests indicate malathion may prove to be effective control for common external parasites of poultry
by Deane P. Furman, Lloyd E. Vincent, W. Stanley Coates
| Full text HTML  | PDF  
Abstract Not Available – First paragraph follows: External parasites most commonly infesting poultry in California include the northern fowl mite, the common poultry mite, several kinds of lice—and the chicken tick, which is often called the blue-bug in spite of the fact that it is a true tick.
Abstract Not Available – First paragraph follows: External parasites most commonly infesting poultry in California include the northern fowl mite, the common poultry mite, several kinds of lice—and the chicken tick, which is often called the blue-bug in spite of the fact that it is a true tick.

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