Abstract
The aphid Nasonovia ribisnigri (Mosley) is a common pest of lettuce in the United States. It hinders export of U.S. lettuce to the overseas market such as Japan where it is a quarantined pest. Ultralow oxygen treatments were studied for control of the insect on iceberg lettuce. Small-scale ultralow oxygen treatments in plastic jars were conducted at 1, 5, and 10°C for different durations to determine effective treatment against nymphs and alates of N. ribisnigri. At oxygen levels of 0.015–0.025%, N. ribisnigri can be controlled in 3 d at 1°C, 2 d at 5°C, and 1 d at 10°C. Large-scale ultralow oxygen treatments were conducted in bulk container treatment chambers with commercial iceberg lettuce heads for 2 d at 6°C with oxygen levels of 0.015 and 0.025% and for 3 d at 3°C with oxygen level of 0.015%. All treatments achieved complete control of N. ribisnigri. No negative impact on lettuce quality was detected after 2 wk of posttreatment storage. Therefore, the selected treatments have potential to be commercially developed for postharvest control of N. ribisnigri on iceberg lettuce.
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Claims 6
Claim · model-written summary
At 0.015–0.025% oxygen, N. ribisnigri was controlled in 3 d at 1°C.
- Taxon
- Iceberg Lettucet0
- Treatment
- oxygen levels of 0.015–0.025%e0
- Interactor
- N. ribisnigri
Nasonovia ribisnigrie0pest - Outcome
- N. ribisnigri can be controllede0
- Direction
- controllede0
- Value
- 3 de0
- Qualifier
- 1°Ce0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At oxygen levels of 0.015–0.025%, N. ribisnigri can be controlled in 3 d at 1°C”
t0“Iceberg Lettuce”
Claim · model-written summary
At 0.015–0.025% oxygen, N. ribisnigri was controlled in 2 d at 5°C.
- Taxon
- Iceberg Lettucet0
- Treatment
- oxygen levels of 0.015–0.025%e0
- Interactor
- N. ribisnigriNasonovia ribisnigrie0pest
- Outcome
- N. ribisnigri can be controllede0
- Direction
- controllede0
- Value
- 2 de0
- Qualifier
- 5°Ce0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At oxygen levels of 0.015–0.025%, N. ribisnigri can be controlled in 3 d at 1°C, 2 d at 5°C”
t0“Iceberg Lettuce”
Claim · model-written summary
At 0.015–0.025% oxygen, N. ribisnigri was controlled in 1 d at 10°C.
- Taxon
- Iceberg Lettucet0
- Treatment
- oxygen levels of 0.015–0.025%e0
- Interactor
- N. ribisnigriNasonovia ribisnigrie0pest
- Outcome
- N. ribisnigri can be controllede0
- Direction
- controllede0
- Value
- 1 de0
- Qualifier
- 10°Ce0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At oxygen levels of 0.015–0.025%, N. ribisnigri can be controlled in 3 d at 1°C, 2 d at 5°C, and 1 d at 10°C”
t0“Iceberg Lettuce”
Claim · model-written summary
All large scale ultralow oxygen treatments completely controlled N. ribisnigri.
- Taxon
- iceberg lettucee0
- Treatment
- ultralow oxygen treatmentse0
- Interactor
- N. ribisnigriNasonovia ribisnigrie0pest
- Outcome
- control of N. ribisnigrie0
- Direction
- complete controle0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Large-scale ultralow oxygen treatments were conducted in bulk container treatment chambers with commercial iceberg lettuce heads for 2 d at 6°C with oxygen levels of 0.015 and 0.025% and for 3 d at 3°C with oxygen level of 0.015%. All treatments achieved complete control of N. ribisnigri”
Claim · model-written summary
The treatments had no detected negative impact on lettuce quality after two weeks storage.
- Taxon
- lettuce
Lactuca sativae0 - Treatment
- posttreatment storagee0
- Outcome
- lettuce qualitye0
- Direction
- No negative impacte0
- Qualifier
- 2 wke0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“No negative impact on lettuce quality was detected after 2 wk of posttreatment storage”
Claim · model-written summary
The authors propose commercial development of the selected treatments for postharvest aphid control.
- Taxon
- iceberg lettucee0
- Interactor
- N. ribisnigriNasonovia ribisnigrie0pest
- Outcome
- commercially developed for postharvest control of N. ribisnigrie0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“selected treatments have potential to be commercially developed for postharvest control of N. ribisnigri on iceberg lettuce”
The same questions in other papers
storage · quality: general · Lactuca sativa (garden lettuce)Positive and negative results
3 papers in the same direction as this paper · 8 in the opposite direction
- positive
- positive
- positive
8 papers more in this group
See all 12 papers →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.