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Calag Archive

California Agriculture, Vol. 7, No.7

Bud mite injury - an old citrus problem
July 1953
Volume 7, Number 7

Research articles

Chlorosis in avocado: Young trees on Guatemalan rootstocks appear less tolerant to disorder than trees on Mexican stocks
by F. F. Halma, F. A. White
| Full text HTML  | PDF  
The following article is the first of a two-part progress report on studies of the relative susceptibility of avocado rootstocks to chlorosis.
The following article is the first of a two-part progress report on studies of the relative susceptibility of avocado rootstocks to chlorosis.
The kara mandarin: Tangerine-type, late spring fruit of excellent eating considquality is promising
by James W. Cameron, Robert K. Soost
| Full text HTML  | PDF  
The Kara mandarin is a tangerine-type citrus fruit, which was first described in 1935. Its parents were the Satsuma mandarin and the King-probably a tangor. Because of its high quality, additional studies were made in 1952 on the behavior of the Kara.
The Kara mandarin is a tangerine-type citrus fruit, which was first described in 1935. Its parents were the Satsuma mandarin and the King-probably a tangor. Because of its high quality, additional studies were made in 1952 on the behavior of the Kara.
Citrus bud mite injury: New chemicals may solve old problem of lemon fruit and foliage deformities
by L. R. Jeppson, de P. Pietri-Tonelli
| Full text HTML  | PDF  
Some of the newer, specific acaricides— products of modern research in agricultural chemicals—have shown promise in field tests as the possible solution to the centuries old problem of malformed lemon fruits.
Some of the newer, specific acaricides— products of modern research in agricultural chemicals—have shown promise in field tests as the possible solution to the centuries old problem of malformed lemon fruits.
Condensed beet solubles product: Feeding value compared with blackstrap molasses and barley in digestibility trials with lambs
by G. P. Lofgreen
| Full text HTML  | PDF  
A condensed beet solubles product— MC-47—has a feeding value of approximately 82% that of blackstrap molasses when compared on a liquid basis.
A condensed beet solubles product— MC-47—has a feeding value of approximately 82% that of blackstrap molasses when compared on a liquid basis.
Cucumber beetles: Insecticides tested for control on melons in northern California
by A. E. Michelbacher, W. W. Middlekauff, O. G. Bacon
| Full text HTML  | PDF  
Melon fields—if left unprotected from the cucumber beetle—are likely to be damaged and some will be completely destroyed.
Melon fields—if left unprotected from the cucumber beetle—are likely to be damaged and some will be completely destroyed.
Nutrient units per dollar: Purchase of food by nutrient content per pound more efficient than by cost per pound
by John H. MacGillivray
| Full text HTML  | PDF  
Foods vary in nutritional value and in price and—when not controlled by taste preferences—their purchase usually is for nutrient content. But because most foods contain seven or more essential nutrients appraisal is difficult without some sort of guide.
Foods vary in nutritional value and in price and—when not controlled by taste preferences—their purchase usually is for nutrient content. But because most foods contain seven or more essential nutrients appraisal is difficult without some sort of guide.
Dormancy of grasses: Temperature, day-length, available moisture factors on rang elands
by Horton M. Laude
| Full text HTML  | PDF  
On California rangelands, the perennial pine bluegrass—Poa scabrella—may enter complete dormancy in late spring when surrounding annual vegetation is still green and vigorous.
On California rangelands, the perennial pine bluegrass—Poa scabrella—may enter complete dormancy in late spring when surrounding annual vegetation is still green and vigorous.
Dryland pasture erosion control: Establishment of perennials for forage on sloping land needs minimum seedbed preparation and reduces erosion
by Bryan C. Sandlin, Victor P. Osterli
| Full text HTML  | PDF  
A good dryland pasture stand can be obtained on sloping or hilly range land with a minimum of seedbed preparation—and without undue loss of top-soil.
A good dryland pasture stand can be obtained on sloping or hilly range land with a minimum of seedbed preparation—and without undue loss of top-soil.
Pollen storage: High viability of pollen obtained after storage in home freezer
by W. H. Griggs, George H. Vansell, Ben T. Lwakiri
| Full text HTML  | PDF  
Hundreds of samples of deciduous fruit and olive pollen—used in breeding and artificial pollination studies—have been stored satisfactorily from one season to the next in an ordinary home freezer at temperatures ranging close to 0°F.
Hundreds of samples of deciduous fruit and olive pollen—used in breeding and artificial pollination studies—have been stored satisfactorily from one season to the next in an ordinary home freezer at temperatures ranging close to 0°F.
Sweet potatoes: Flowering induced by grafting scion on ornamental rootstock
by M. P. Zobel, G. C. Hanna
| Full text HTML  | PDF  
Most varieties of sweet potatoes— Ipomea batatas—normally do not produce flowers under California conditions. The ability to induce flower and seed production would greatly facilitate the development of varieties with superior quality, higher yield, and disease resistance.
Most varieties of sweet potatoes— Ipomea batatas—normally do not produce flowers under California conditions. The ability to induce flower and seed production would greatly facilitate the development of varieties with superior quality, higher yield, and disease resistance.
Leafminer on tomato: Control by dieldrin studied for northern California conditions
by A. E. Michelbacher, O. G. Bacon, John Underhill
| Full text HTML  | PDF  
The agromyzid leafminer—Liriomyza subpusilla Frost—was more abundant on tomato during the 1952 season than in any other recent year.
The agromyzid leafminer—Liriomyza subpusilla Frost—was more abundant on tomato during the 1952 season than in any other recent year.
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California Agriculture, Vol. 7, No.7

Bud mite injury - an old citrus problem
July 1953
Volume 7, Number 7

Research articles

Chlorosis in avocado: Young trees on Guatemalan rootstocks appear less tolerant to disorder than trees on Mexican stocks
by F. F. Halma, F. A. White
| Full text HTML  | PDF  
The following article is the first of a two-part progress report on studies of the relative susceptibility of avocado rootstocks to chlorosis.
The following article is the first of a two-part progress report on studies of the relative susceptibility of avocado rootstocks to chlorosis.
The kara mandarin: Tangerine-type, late spring fruit of excellent eating considquality is promising
by James W. Cameron, Robert K. Soost
| Full text HTML  | PDF  
The Kara mandarin is a tangerine-type citrus fruit, which was first described in 1935. Its parents were the Satsuma mandarin and the King-probably a tangor. Because of its high quality, additional studies were made in 1952 on the behavior of the Kara.
The Kara mandarin is a tangerine-type citrus fruit, which was first described in 1935. Its parents were the Satsuma mandarin and the King-probably a tangor. Because of its high quality, additional studies were made in 1952 on the behavior of the Kara.
Citrus bud mite injury: New chemicals may solve old problem of lemon fruit and foliage deformities
by L. R. Jeppson, de P. Pietri-Tonelli
| Full text HTML  | PDF  
Some of the newer, specific acaricides— products of modern research in agricultural chemicals—have shown promise in field tests as the possible solution to the centuries old problem of malformed lemon fruits.
Some of the newer, specific acaricides— products of modern research in agricultural chemicals—have shown promise in field tests as the possible solution to the centuries old problem of malformed lemon fruits.
Condensed beet solubles product: Feeding value compared with blackstrap molasses and barley in digestibility trials with lambs
by G. P. Lofgreen
| Full text HTML  | PDF  
A condensed beet solubles product— MC-47—has a feeding value of approximately 82% that of blackstrap molasses when compared on a liquid basis.
A condensed beet solubles product— MC-47—has a feeding value of approximately 82% that of blackstrap molasses when compared on a liquid basis.
Cucumber beetles: Insecticides tested for control on melons in northern California
by A. E. Michelbacher, W. W. Middlekauff, O. G. Bacon
| Full text HTML  | PDF  
Melon fields—if left unprotected from the cucumber beetle—are likely to be damaged and some will be completely destroyed.
Melon fields—if left unprotected from the cucumber beetle—are likely to be damaged and some will be completely destroyed.
Nutrient units per dollar: Purchase of food by nutrient content per pound more efficient than by cost per pound
by John H. MacGillivray
| Full text HTML  | PDF  
Foods vary in nutritional value and in price and—when not controlled by taste preferences—their purchase usually is for nutrient content. But because most foods contain seven or more essential nutrients appraisal is difficult without some sort of guide.
Foods vary in nutritional value and in price and—when not controlled by taste preferences—their purchase usually is for nutrient content. But because most foods contain seven or more essential nutrients appraisal is difficult without some sort of guide.
Dormancy of grasses: Temperature, day-length, available moisture factors on rang elands
by Horton M. Laude
| Full text HTML  | PDF  
On California rangelands, the perennial pine bluegrass—Poa scabrella—may enter complete dormancy in late spring when surrounding annual vegetation is still green and vigorous.
On California rangelands, the perennial pine bluegrass—Poa scabrella—may enter complete dormancy in late spring when surrounding annual vegetation is still green and vigorous.
Dryland pasture erosion control: Establishment of perennials for forage on sloping land needs minimum seedbed preparation and reduces erosion
by Bryan C. Sandlin, Victor P. Osterli
| Full text HTML  | PDF  
A good dryland pasture stand can be obtained on sloping or hilly range land with a minimum of seedbed preparation—and without undue loss of top-soil.
A good dryland pasture stand can be obtained on sloping or hilly range land with a minimum of seedbed preparation—and without undue loss of top-soil.
Pollen storage: High viability of pollen obtained after storage in home freezer
by W. H. Griggs, George H. Vansell, Ben T. Lwakiri
| Full text HTML  | PDF  
Hundreds of samples of deciduous fruit and olive pollen—used in breeding and artificial pollination studies—have been stored satisfactorily from one season to the next in an ordinary home freezer at temperatures ranging close to 0°F.
Hundreds of samples of deciduous fruit and olive pollen—used in breeding and artificial pollination studies—have been stored satisfactorily from one season to the next in an ordinary home freezer at temperatures ranging close to 0°F.
Sweet potatoes: Flowering induced by grafting scion on ornamental rootstock
by M. P. Zobel, G. C. Hanna
| Full text HTML  | PDF  
Most varieties of sweet potatoes— Ipomea batatas—normally do not produce flowers under California conditions. The ability to induce flower and seed production would greatly facilitate the development of varieties with superior quality, higher yield, and disease resistance.
Most varieties of sweet potatoes— Ipomea batatas—normally do not produce flowers under California conditions. The ability to induce flower and seed production would greatly facilitate the development of varieties with superior quality, higher yield, and disease resistance.
Leafminer on tomato: Control by dieldrin studied for northern California conditions
by A. E. Michelbacher, O. G. Bacon, John Underhill
| Full text HTML  | PDF  
The agromyzid leafminer—Liriomyza subpusilla Frost—was more abundant on tomato during the 1952 season than in any other recent year.
The agromyzid leafminer—Liriomyza subpusilla Frost—was more abundant on tomato during the 1952 season than in any other recent year.

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