Abstract
Foliar sprays of 4 microg/ml oxamyl on sweet orange trees in a greenhouse slightly depressed the number of Tylenchulus semipenetrans larvae obtained from roots and soil, but similar treatments were not effective in two orchards. Soil drench treatments decreased the number of citrus nematode larvae obtained from roots or soil of citrus plants grown itt a greenhouse and in orchards. Exposure to 5-10 microg/ml of oxamyl in water was lethal to only a few second-stage larvae treated 10 days, and many second-stage larvae in 2.0 microg/ml oxamyl recovered motility when transferred to fresh water. Aqueous solutions of 50 and 100 microg/ml of oxamyl were toxic to citrus nematode larvae. Additional observations indicate that oxamyl interfered with hatch of citrus nematode larvae and was nematistatic and/or protected sweet orange roots from infection. Oxamyl degraded at different rates in two soils. The number of citrus nematode larvae that infected and developed on sweet orange roots was increased by an undetermined product of the degradation of oxamyl in soil, water, and possibly within plants. This product apparently was translocated in roots.
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Claims 11
Claim · model-written summary
Foliar oxamyl slightly depressed nematode larvae from roots and soil in greenhouse trees.
- Taxon
- sweet orange
Citrus sinensise0 - Treatment
- Foliar sprays of 4 microg/ml oxamyle0
- Interactor
- Tylenchulus semipenetransTylenchulus semipenetranse0pathogen
- Outcome
- number of Tylenchulus semipenetrans larvae obtained from roots and soile0
- Direction
- slightly depressede0
- Setting
- greenhousee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Foliar sprays of 4 microg/ml oxamyl on sweet orange trees in a greenhouse slightly depressed the number of Tylenchulus semipenetrans larvae obtained from roots and soil”
Claim · model-written summary
Similar foliar treatments were ineffective in two orchards.
- Taxon
- sweet orangeCitrus sinensist0
- Treatment
- similar treatmentse0
- Outcome
- not effectivee0
- Direction
- not effectivee0
- Setting
- two orchardse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“but similar treatments were not effective in two orchards.”
t0“sweet orange”
Claim · model-written summary
Soil drench reduced citrus nematode larvae from citrus roots or soil.
- Treatment
- Soil drench treatmentse0
- Interactor
- citrus nematodeTylenchulus semipenetranse0pathogen
- Outcome
- number of citrus nematode larvae obtained from roots or soile0
- Direction
- decreasede0
- Setting
- greenhouse and in orchardse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Soil drench treatments decreased the number of citrus nematode larvae obtained from roots or soil of citrus plants grown itt a greenhouse and in orchards.”
Claim · model-written summary
Oxamyl in water at 5-10 microg/ml killed only a few larvae.
- Taxon
- sweet orangeCitrus sinensist0
- Treatment
- 5-10 microg/ml of oxamyl in watere0
- Interactor
- citrus nematodeTylenchulus semipenetranst0pathogen
- Outcome
- lethal to only a few second-stage larvaee0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Exposure to 5-10 microg/ml of oxamyl in water was lethal to only a few second-stage larvae treated 10 days”
t0“citrus nematode, Tylenchulus semipenetrans, and on infection of sweet orange”
Claim · model-written summary
Many larvae in 2.0 microg/ml oxamyl regained motility in fresh water.
- Taxon
- sweet orangeCitrus sinensist0
- Treatment
- 2.0 microg/ml oxamyle0
- Interactor
- citrus nematodeTylenchulus semipenetranst0pathogen
- Outcome
- recovered motilitye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“many second-stage larvae in 2.0 microg/ml oxamyl recovered motility when transferred to fresh water.”
t0“citrus nematode, Tylenchulus semipenetrans, and on infection of sweet orange”
Claim · model-written summary
Oxamyl at 50 and 100 microg/ml was toxic to larvae.
- Taxon
- sweet orangeCitrus sinensist0
- Treatment
- 50 and 100 microg/ml of oxamyle0
- Interactor
- citrus nematodeTylenchulus semipenetranse0pathogen
- Outcome
- toxic to citrus nematode larvaee0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Aqueous solutions of 50 and 100 microg/ml of oxamyl were toxic to citrus nematode larvae.”
t0“sweet orange”
Claim · model-written summary
Oxamyl interfered with citrus nematode hatching.
- Taxon
- sweet orangeCitrus sinensist0
- Treatment
- oxamyle0
- Interactor
- citrus nematodeTylenchulus semipenetranse0pathogen
- Outcome
- hatch of citrus nematode larvaee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Additional observations indicate that oxamyl interfered with hatch of citrus nematode larvae”
t0“sweet orange”
Claim · model-written summary
Oxamyl was nematistatic or protected roots from infection.
- Taxon
- sweet orangeCitrus sinensise0
- Outcome
- protected sweet orange roots from infectione0
- Qualifier
- and/ore0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“was nematistatic and/or protected sweet orange roots from infection.”
Claim · model-written summary
Oxamyl degraded at different rates in two soils.
Not reportedTaxon
Verbatim
e0“Oxamyl degraded at different rates in two soils.”
Claim · model-written summary
An oxamyl degradation product increased larval infection and development on sweet orange roots.
- Taxon
- sweet orangeCitrus sinensise0
- Treatment
- undetermined product of the degradation of oxamyle0
- Interactor
- citrus nematodeTylenchulus semipenetranse0pathogen
- Outcome
- number of citrus nematode larvae that infected and developed on sweet orange rootse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The number of citrus nematode larvae that infected and developed on sweet orange roots was increased by an undetermined product of the degradation of oxamyl in soil, water, and possibly within plants.”
Claim · model-written summary
The degradation product apparently moved through roots.
- Taxon
- sweet orangeCitrus sinensist0
- Outcome
- translocated in rootse0
- Qualifier
- apparentlye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This product apparently was translocated in roots.”
t0“sweet orange”
The same questions in other papers
oxamyl · Tylenchulus semipenetrans · Citrus sinensis (sweet orange)Results agree
5 papers in the same direction as this paper
- positive
- positive
- positive
2 papers more in this group
See all 6 papers →application · Tylenchulus semipenetrans · Citrus sinensis (sweet orange)Results agree
1 paper in the same direction as this paper
- positive
Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.