Abstract
This paper reports experimental work with colonization of Trichogramma minutum for control of the sugarcane borer (Diatraea saccharalis) in com and cane fields in Louisiana. It is shown that colonization increases very abruptly the parasitism percentage in colonized fields of cane and corn and that the parasites spread quite promptly into adjacent fields. The average percentage of borer eggs destroyed in colonized and adjacent fields was about 28% greater than in comparable check areas for the latter portion of the season. This higher destruction of borer eggs resulted in a decided decrease in the proportion of stalks bored, joints bored and moth population produced per acre in mi11ablecane. About 6000 millable stalks per acre were saved apparently by parasite colonization. By decreasing the borer attack on cane there was found to have been an average saving of from 21 to 25 pounds of sugar per ton of cane in an average of all protected areas. The cost of colonization work averaged less than $1.00 per acre.
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Claims 7
Claim · model-written summary
Colonization sharply increased parasitism in cane and corn fields.
- Taxon
- canee0
- Treatment
- colonizatione0
- Interactor
- Trichogramma
%2C_photo_was_taken_by_Dr_Victor_Fursov.jpg?width=60)
Trichogrammat0biocontrol_agent - Outcome
- parasitism percentagee0
- Direction
- increasese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
%2C_photo_was_taken_by_Dr_Victor_Fursov.jpg?width=500)
Verbatim
e0“colonization increases very abruptly the parasitism percentage in colonized fields of cane and corn”
t0“Trichogramma Colonization”
Claim · model-written summary
The parasites spread promptly into adjacent fields.
Not reportedDirection
Verbatim
e0“the parasites spread quite promptly into adjacent fields”
t0“Sugar Cane Borer Control”
Claim · model-written summary
Borer egg destruction in colonized and adjacent fields was about 28% higher than checks.
Verbatim
e0“The average percentage of borer eggs destroyed in colonized and adjacent fields was about 28% greater than in comparable check areas”
t0“Sugar Cane Borer Control”
Claim · model-written summary
Higher egg destruction reduced stalk boring, joint boring and moth population.
- Taxon
- canet0
- Treatment
- higher destruction of borer eggse0
- Interactor
- borert0pest
- Outcome
- proportion of stalks bored, joints bored and moth population produced per acree0
- Direction
- decreasee0
Not reportedComparator
Verbatim
e0“This higher destruction of borer eggs resulted in a decided decrease in the proportion of stalks bored, joints bored and moth population produced per acre in mi11ablecane”
t0“Sugar Cane Borer Control”
Claim · model-written summary
Parasite colonization apparently saved about 6000 millable stalks per acre.
- Taxon
- canet0
- Treatment
- parasite colonizatione0
- Outcome
- millable stalks per acree0
- Direction
- savede0
- Value
- About 6000 millable stalks per acree0
Not reportedComparator
Verbatim
e0“About 6000 millable stalks per acre were saved apparently by parasite colonization”
t0“Sugar Cane Borer Control”
Claim · model-written summary
Reduced borer attack saved 21 to 25 pounds of sugar per ton of cane.
- Taxon
- canee0
- Treatment
- decreasing the borer attacke0
- Interactor
- borere0pest
- Outcome
- sugar per ton of canee0
- Direction
- savinge0
- Value
- 21 to 25 pounds of sugar per ton of canee0
Not reportedComparator
Verbatim
e0“By decreasing the borer attack on cane there was found to have been an average saving of from 21 to 25 pounds of sugar per ton of cane”
Claim · model-written summary
Colonization cost less than $1.00 per acre on average.
Not reportedDirection
Verbatim
e0“The cost of colonization work averaged less than $1.00 per acre”
t0“Sugar Cane Borer Control”