California Agriculture
California Agriculture
California Agriculture
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California Agriculture

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California Agriculture, Vol. 19, No.7

Two new cantaloupe varieties for the Southwest. 1908
July 1965
Volume 19, Number 7

Research articles

Timing: Lygus bug control increases lima bean yield and quality
by A. S. Deal, H. H. Shorey, M. J. Snyder
| Full text HTML  | PDF  
Proper timing of treatments, as well as choice of insecticides, is highly important in preventing losses in both yield and quality from lygus bug feeding on lima beans. In these tests, early applications were important and use of the organo-phosphorus insecticides Cygon alone, or malathion in combination with toxaphene proved most effective for control of this pest.
Cultural Practices: Affect success of U. C. lettuce harvester
by R. E. Garrett, M. Zahara
| Full text HTML  | PDF  
Certain conditions resulting from tilling, bed shaping, planting, thinning, and cultivating practices may cause lettuce heads to develop off center—which leads the U. C. mechanical selective lettuce harvester to “believe” that the heads are not ready to harvest, or affects the harvester's ability to cut the heads accurately.
Campo and Jacumba: New cantaloupe varieties for the southwest
by G. W. Bohn, G. N. Davis, R. E. Foster, T. W. Whitaker
| Full text HTML  | PDF  
campo and jacumba are inbreds from the trihybrid cantaloupe cross (L.J. (La Jolla) 36486 (also designated P3) X PMR 45)-F1 X PMR 450. A fourth generation inbred selection was twice backcrossed to PMR 450. Resistant sibs were crossed with two different commercial stocks of PMR 450 at the final cross. Inbreeding and selection were continued for eight generations in each of the two breeding lines.
campo and jacumba are inbreds from the trihybrid cantaloupe cross (L.J. (La Jolla) 36486 (also designated P3) X PMR 45)-F1 X PMR 450. A fourth generation inbred selection was twice backcrossed to PMR 450. Resistant sibs were crossed with two different commercial stocks of PMR 450 at the final cross. Inbreeding and selection were continued for eight generations in each of the two breeding lines.
Watergrass control in rice fields with Propanil and Ordram
by K. E. Mueller, E. A. Oelke
| Full text HTML  | PDF  
If the 1950's became known to California rice growers as the years in which broadleaf weeds were finally controlled, then the 1960's appear to be the years in which grassy weeds—especially watergrass or barnyard grass—might also be brought under control with the use of selective chemicals. Preliminary tests and observations described in this report indicate that propanil, applied as a postemergence spray, and Ordram, a granular material applied at the preflood stage, may offer good control of watergrass in California rice fields which are continuously flooded during the growing season.
Insect Diseases: Tested for control of cotton bollworm
by L. A. Falcon, T. F. Leigh, R. van Den Bosch, J. H. Black, V. E. Burton
| Full text HTML  | PDF  
Recent field experiments indicate that commercial preparations of the nucleo-polyhedrosis virus of Heliothis zea and the bacterium, Bacillus thuringiensis Berliner, offer much promise for effective and selective control of early instar bollworms on cotton.
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California Agriculture, Vol. 19, No.7

Two new cantaloupe varieties for the Southwest. 1908
July 1965
Volume 19, Number 7

Research articles

Timing: Lygus bug control increases lima bean yield and quality
by A. S. Deal, H. H. Shorey, M. J. Snyder
| Full text HTML  | PDF  
Proper timing of treatments, as well as choice of insecticides, is highly important in preventing losses in both yield and quality from lygus bug feeding on lima beans. In these tests, early applications were important and use of the organo-phosphorus insecticides Cygon alone, or malathion in combination with toxaphene proved most effective for control of this pest.
Cultural Practices: Affect success of U. C. lettuce harvester
by R. E. Garrett, M. Zahara
| Full text HTML  | PDF  
Certain conditions resulting from tilling, bed shaping, planting, thinning, and cultivating practices may cause lettuce heads to develop off center—which leads the U. C. mechanical selective lettuce harvester to “believe” that the heads are not ready to harvest, or affects the harvester's ability to cut the heads accurately.
Campo and Jacumba: New cantaloupe varieties for the southwest
by G. W. Bohn, G. N. Davis, R. E. Foster, T. W. Whitaker
| Full text HTML  | PDF  
campo and jacumba are inbreds from the trihybrid cantaloupe cross (L.J. (La Jolla) 36486 (also designated P3) X PMR 45)-F1 X PMR 450. A fourth generation inbred selection was twice backcrossed to PMR 450. Resistant sibs were crossed with two different commercial stocks of PMR 450 at the final cross. Inbreeding and selection were continued for eight generations in each of the two breeding lines.
campo and jacumba are inbreds from the trihybrid cantaloupe cross (L.J. (La Jolla) 36486 (also designated P3) X PMR 45)-F1 X PMR 450. A fourth generation inbred selection was twice backcrossed to PMR 450. Resistant sibs were crossed with two different commercial stocks of PMR 450 at the final cross. Inbreeding and selection were continued for eight generations in each of the two breeding lines.
Watergrass control in rice fields with Propanil and Ordram
by K. E. Mueller, E. A. Oelke
| Full text HTML  | PDF  
If the 1950's became known to California rice growers as the years in which broadleaf weeds were finally controlled, then the 1960's appear to be the years in which grassy weeds—especially watergrass or barnyard grass—might also be brought under control with the use of selective chemicals. Preliminary tests and observations described in this report indicate that propanil, applied as a postemergence spray, and Ordram, a granular material applied at the preflood stage, may offer good control of watergrass in California rice fields which are continuously flooded during the growing season.
Insect Diseases: Tested for control of cotton bollworm
by L. A. Falcon, T. F. Leigh, R. van Den Bosch, J. H. Black, V. E. Burton
| Full text HTML  | PDF  
Recent field experiments indicate that commercial preparations of the nucleo-polyhedrosis virus of Heliothis zea and the bacterium, Bacillus thuringiensis Berliner, offer much promise for effective and selective control of early instar bollworms on cotton.

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