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Calag Archive

California Agriculture, Vol. 3, No.5

Control of wireworms in lima beans
May 1949
Volume 3, Number 5

Research articles

Supervised control of insects: Utilizes parasites and predators and makes chemical control more efficient
by Ray F. Smith, Gordon L. Smith
| Full text HTML  | PDF  
Supervised control of field crop insect pests was first developed on the northwest side of the San Joaquin Valley. For three years it has been in successful operation in connection with the control of the alfalfa caterpillar, and has been expanded to the control of other pests on alfalfa and to pests of cotton. Supervised control has not been developed for such crops as deciduous and citrus fruits or truck crops. It has its possibilities on other crops but the necessary entomological information either has not been developed or has not been tested for a local supervised control district.
Supervised control of field crop insect pests was first developed on the northwest side of the San Joaquin Valley. For three years it has been in successful operation in connection with the control of the alfalfa caterpillar, and has been expanded to the control of other pests on alfalfa and to pests of cotton. Supervised control has not been developed for such crops as deciduous and citrus fruits or truck crops. It has its possibilities on other crops but the necessary entomological information either has not been developed or has not been tested for a local supervised control district.
Codling moth on apricots: Field investigations of problem started in 1948 are to be continued during current season
by Arthur D. Borden, Harold F. Madsen
| Full text HTML  | PDF  
Many apricot orchards in the Santa Clara Valley have been severely attacked by the codling moth for a number of years. The losses in wormy fruit at harvest have frequently been as high as 30% to 50% of the crop. The attempts of some growers at control were usually unsatisfactory and at their request the Division of Entomology and Parasitology at Berkeley started a field investigation of the problem in the spring of 1948.
Many apricot orchards in the Santa Clara Valley have been severely attacked by the codling moth for a number of years. The losses in wormy fruit at harvest have frequently been as high as 30% to 50% of the crop. The attempts of some growers at control were usually unsatisfactory and at their request the Division of Entomology and Parasitology at Berkeley started a field investigation of the problem in the spring of 1948.
Wireworms in lima beans: Control by seed treatment with high gamma benzene hexachloride-BHC-investigated
by W. H. Lange, E. C. Carlson, L. D. Leach
| Full text HTML  | PDF  
Wireworms in lima bean fields often cause extensive losses regardless of the amount of seed planted.
Wireworms in lima bean fields often cause extensive losses regardless of the amount of seed planted.
Plant breeding: Disease resistant genes of nonagricultural wheat transferred to commercial bread wheat
by R. W. Allard
| Full text HTML  | PDF  
Plant breeders developing disease resistant plants by using the sciences of genetics and cytology together may obtain genes controlling disease resistance from hybrids between species—if this is necessary.
Plant breeders developing disease resistant plants by using the sciences of genetics and cytology together may obtain genes controlling disease resistance from hybrids between species—if this is necessary.
Black scale control: Supply of natural enemy developed by using pest a s foster host on noneconomic plants
by Stanley E. Flanders
| Full text HTML  | PDF  
Oleanders planted along the side of a citrus orchard—toward the prevailing midday winds—can serve as insectaries for the production of the African parasite, Metaphycus helvolus, a natural enemy of black scale introduced into California in 1937 by the University of California.
Oleanders planted along the side of a citrus orchard—toward the prevailing midday winds—can serve as insectaries for the production of the African parasite, Metaphycus helvolus, a natural enemy of black scale introduced into California in 1937 by the University of California.
Acidification of California soils: Many pumped irrigation waters of State require large additions of acid to add appreciable amount to soil
by L. D. Doneen
| Full text HTML  | PDF  
Making soil acid—acidification—by adding acid to the irrigation water has been advocated as a means of controlling potato scab; for neutralizing highly alkaline soils; the reclamation of saline soils; and the improvement of penetrability of water into the soil.
Making soil acid—acidification—by adding acid to the irrigation water has been advocated as a means of controlling potato scab; for neutralizing highly alkaline soils; the reclamation of saline soils; and the improvement of penetrability of water into the soil.
Table grape quality factors: Causes of late maturing in 1946-47 and suggested procedure to improve quality in 1949
by A. J. Winkler
| Full text HTML  | PDF  
Within the limit of a grape vine's capacity to bear fruit, the date of ripening is determined mainly by heat and can not be hastened by a reduction in crop.
Within the limit of a grape vine's capacity to bear fruit, the date of ripening is determined mainly by heat and can not be hastened by a reduction in crop.
Chickens in hot weather: Effects of high air temperatures and methods of cooling poultry houses under study
by Wilbor O. Wilson
| Full text HTML  | PDF  
The experiments with evaporative coolers were conducted by Professor V. S. Asmundson of Poultry Husbandry, Davis, and J. R. Taver- netti, Associate Agricultural Engineer in the Experiment Station, Davis.
The experiments with evaporative coolers were conducted by Professor V. S. Asmundson of Poultry Husbandry, Davis, and J. R. Taver- netti, Associate Agricultural Engineer in the Experiment Station, Davis.
Canning tomatoes: Color measurement as an aid in grading tomatoes to specifications
by John H. MacGillivray
| Full text HTML  | PDF  
Color is an important quality characteristic of canning tomatoes.
Color is an important quality characteristic of canning tomatoes.
Irrigated pasture costs: Studies revealed costs per animal-unit month varied from $1.00 to over $7.00
by B. B. Burlingame
| Full text HTML  | PDF  
Recent irrigated pasture cost studies conducted in Butte, Colusa, Sacramento, San Joaquin, and Yolo counties revealed wide variations.
Recent irrigated pasture cost studies conducted in Butte, Colusa, Sacramento, San Joaquin, and Yolo counties revealed wide variations.
Breeding of mares: Management and accurate records may increase percentage of live foals
by Perry T. Cupps
| Full text HTML  | PDF  
Breeders of horses often are disappointed at the small percentage of live foals they obtain from breeding mares.
Breeders of horses often are disappointed at the small percentage of live foals they obtain from breeding mares.
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California Agriculture, Vol. 3, No.5

Control of wireworms in lima beans
May 1949
Volume 3, Number 5

Research articles

Supervised control of insects: Utilizes parasites and predators and makes chemical control more efficient
by Ray F. Smith, Gordon L. Smith
| Full text HTML  | PDF  
Supervised control of field crop insect pests was first developed on the northwest side of the San Joaquin Valley. For three years it has been in successful operation in connection with the control of the alfalfa caterpillar, and has been expanded to the control of other pests on alfalfa and to pests of cotton. Supervised control has not been developed for such crops as deciduous and citrus fruits or truck crops. It has its possibilities on other crops but the necessary entomological information either has not been developed or has not been tested for a local supervised control district.
Supervised control of field crop insect pests was first developed on the northwest side of the San Joaquin Valley. For three years it has been in successful operation in connection with the control of the alfalfa caterpillar, and has been expanded to the control of other pests on alfalfa and to pests of cotton. Supervised control has not been developed for such crops as deciduous and citrus fruits or truck crops. It has its possibilities on other crops but the necessary entomological information either has not been developed or has not been tested for a local supervised control district.
Codling moth on apricots: Field investigations of problem started in 1948 are to be continued during current season
by Arthur D. Borden, Harold F. Madsen
| Full text HTML  | PDF  
Many apricot orchards in the Santa Clara Valley have been severely attacked by the codling moth for a number of years. The losses in wormy fruit at harvest have frequently been as high as 30% to 50% of the crop. The attempts of some growers at control were usually unsatisfactory and at their request the Division of Entomology and Parasitology at Berkeley started a field investigation of the problem in the spring of 1948.
Many apricot orchards in the Santa Clara Valley have been severely attacked by the codling moth for a number of years. The losses in wormy fruit at harvest have frequently been as high as 30% to 50% of the crop. The attempts of some growers at control were usually unsatisfactory and at their request the Division of Entomology and Parasitology at Berkeley started a field investigation of the problem in the spring of 1948.
Wireworms in lima beans: Control by seed treatment with high gamma benzene hexachloride-BHC-investigated
by W. H. Lange, E. C. Carlson, L. D. Leach
| Full text HTML  | PDF  
Wireworms in lima bean fields often cause extensive losses regardless of the amount of seed planted.
Wireworms in lima bean fields often cause extensive losses regardless of the amount of seed planted.
Plant breeding: Disease resistant genes of nonagricultural wheat transferred to commercial bread wheat
by R. W. Allard
| Full text HTML  | PDF  
Plant breeders developing disease resistant plants by using the sciences of genetics and cytology together may obtain genes controlling disease resistance from hybrids between species—if this is necessary.
Plant breeders developing disease resistant plants by using the sciences of genetics and cytology together may obtain genes controlling disease resistance from hybrids between species—if this is necessary.
Black scale control: Supply of natural enemy developed by using pest a s foster host on noneconomic plants
by Stanley E. Flanders
| Full text HTML  | PDF  
Oleanders planted along the side of a citrus orchard—toward the prevailing midday winds—can serve as insectaries for the production of the African parasite, Metaphycus helvolus, a natural enemy of black scale introduced into California in 1937 by the University of California.
Oleanders planted along the side of a citrus orchard—toward the prevailing midday winds—can serve as insectaries for the production of the African parasite, Metaphycus helvolus, a natural enemy of black scale introduced into California in 1937 by the University of California.
Acidification of California soils: Many pumped irrigation waters of State require large additions of acid to add appreciable amount to soil
by L. D. Doneen
| Full text HTML  | PDF  
Making soil acid—acidification—by adding acid to the irrigation water has been advocated as a means of controlling potato scab; for neutralizing highly alkaline soils; the reclamation of saline soils; and the improvement of penetrability of water into the soil.
Making soil acid—acidification—by adding acid to the irrigation water has been advocated as a means of controlling potato scab; for neutralizing highly alkaline soils; the reclamation of saline soils; and the improvement of penetrability of water into the soil.
Table grape quality factors: Causes of late maturing in 1946-47 and suggested procedure to improve quality in 1949
by A. J. Winkler
| Full text HTML  | PDF  
Within the limit of a grape vine's capacity to bear fruit, the date of ripening is determined mainly by heat and can not be hastened by a reduction in crop.
Within the limit of a grape vine's capacity to bear fruit, the date of ripening is determined mainly by heat and can not be hastened by a reduction in crop.
Chickens in hot weather: Effects of high air temperatures and methods of cooling poultry houses under study
by Wilbor O. Wilson
| Full text HTML  | PDF  
The experiments with evaporative coolers were conducted by Professor V. S. Asmundson of Poultry Husbandry, Davis, and J. R. Taver- netti, Associate Agricultural Engineer in the Experiment Station, Davis.
The experiments with evaporative coolers were conducted by Professor V. S. Asmundson of Poultry Husbandry, Davis, and J. R. Taver- netti, Associate Agricultural Engineer in the Experiment Station, Davis.
Canning tomatoes: Color measurement as an aid in grading tomatoes to specifications
by John H. MacGillivray
| Full text HTML  | PDF  
Color is an important quality characteristic of canning tomatoes.
Color is an important quality characteristic of canning tomatoes.
Irrigated pasture costs: Studies revealed costs per animal-unit month varied from $1.00 to over $7.00
by B. B. Burlingame
| Full text HTML  | PDF  
Recent irrigated pasture cost studies conducted in Butte, Colusa, Sacramento, San Joaquin, and Yolo counties revealed wide variations.
Recent irrigated pasture cost studies conducted in Butte, Colusa, Sacramento, San Joaquin, and Yolo counties revealed wide variations.
Breeding of mares: Management and accurate records may increase percentage of live foals
by Perry T. Cupps
| Full text HTML  | PDF  
Breeders of horses often are disappointed at the small percentage of live foals they obtain from breeding mares.
Breeders of horses often are disappointed at the small percentage of live foals they obtain from breeding mares.

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