Abstract
Commercial management of whitefly-transmitted Tomato yellow leaf curl virus (TYLCV) typically relies on insecticide control of whitefly vectors as a first line of defense. We quantified this effect in crop tunnel studies, with validation in a tomato field setting. Tomato yellow leaf curl virus-infected and Bemisia tabaci (Gennadius)-infested source plants were planted at the beginning of tunneled rows to serve as inoculum source, so that movement of whiteflies and TYLCV symptoms could be tracked down the length of the tunnel over time. Tunnel study results showed that proximity to the source plant was a more important factor than insecticide treatments. Insecticide-treated tomato transplants did tend to suppress whitefly incidence and slowed TYLCV movement in comparison with the untreated check; however, tomato plants planted closer to the source plant had higher incidence of whiteflies and TYLCV infection, regardless of treatment. In a large tomato plot study with a controlled inoculum source, insecticide treatments significantly reduced the spread of TYLCV. When uninhibited by insecticide treatment, 80% of the TYLCV spread was restricted to <15 m from the source plant (<11 m in the validation study), with insecticide treatment generally reducing the distance and magnitude of this spread.
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Claims 9
Claim · model-written summary
In tunnels, proximity to source plants mattered more than insecticide treatment.
- Taxon
- Tomato
Solanum lycopersicumt0 - Outcome
- more important factore0
- Direction
- more importante0
- Comparator
- insecticide treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“proximity to the source plant was a more important factor than insecticide treatments”
t0“Tomato Yellow Leaf Curl Virus and Movement of Its Whitefly Vector in Tomato”
Claim · model-written summary
Insecticide-treated transplants tended to suppress whitefly incidence.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- Insecticide-treatede0
- Interactor
- whiteflye0pest
- Outcome
- whitefly incidencee0
- Direction
- suppresse0
- Comparator
- untreated checke0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Insecticide-treated tomato transplants did tend to suppress whitefly incidence and slowed TYLCV movement in comparison with the untreated check”
Claim · model-written summary
Insecticide-treated transplants tended to slow TYLCV movement.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- Insecticide-treatede0
- Interactor
- TYLCVTomato yellow leaf curl viruse0pathogen
- Outcome
- TYLCV movemente0
- Direction
- slowede0
- Comparator
- untreated checke0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Insecticide-treated tomato transplants did tend to suppress whitefly incidence and slowed TYLCV movement in comparison with the untreated check”
Claim · model-written summary
Plants closer to the source had higher whitefly incidence regardless of treatment.
- Taxon
- tomatoSolanum lycopersicume0
- Interactor
- whitefliesAleyrodoideae0pest
- Outcome
- incidence of whitefliese0
- Direction
- highere0
- Setting
- closer to the source plante0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“tomato plants planted closer to the source plant had higher incidence of whiteflies and TYLCV infection, regardless of treatment”
Claim · model-written summary
Plants closer to the source had higher TYLCV infection regardless of treatment.
- Taxon
- tomatoSolanum lycopersicume0
- Interactor
- TYLCVTomato yellow leaf curl viruse0pathogen
- Outcome
- TYLCV infectione0
- Direction
- highere0
- Setting
- closer to the source plante0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“tomato plants planted closer to the source plant had higher incidence of whiteflies and TYLCV infection, regardless of treatment”
Claim · model-written summary
Insecticide significantly reduced TYLCV spread in the large plot.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- insecticide treatmentse0
- Interactor
- TYLCVTomato yellow leaf curl viruse0pathogen
- Outcome
- spread of TYLCVe0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In a large tomato plot study with a controlled inoculum source, insecticide treatments significantly reduced the spread of TYLCV”
Claim · model-written summary
Without insecticide, 80% of spread occurred within 15 m of the source.
- Taxon
- TomatoSolanum lycopersicumt0
- Interactor
- TYLCVTomato yellow leaf curl viruse0pathogen
- Outcome
- TYLCV spreade0
- Value
- 80%e0
- Qualifier
- <15 me0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When uninhibited by insecticide treatment, 80% of the TYLCV spread was restricted to <15 m from the source plant (<11 m in the validation study)”
t0“Tomato Yellow Leaf Curl Virus and Movement of Its Whitefly Vector in Tomato”
Claim · model-written summary
Validation placed the restricted spread distance within 11 m.
- Taxon
- TomatoSolanum lycopersicumt0
- Outcome
- validation studye0
- Value
- <11 me0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“<11 m in the validation study”
t0“Tomato Yellow Leaf Curl Virus and Movement of Its Whitefly Vector in Tomato”
Claim · model-written summary
Insecticide generally reduced the distance and magnitude of TYLCV spread.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- insecticide treatmente0
- Outcome
- distance and magnitude of this spreade0
- Direction
- reducinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“insecticide treatment generally reducing the distance and magnitude of this spread”
t0“Tomato Yellow Leaf Curl Virus”
The same questions in other papers
insecticide · Tomato yellow leaf curl virus · Solanum lycopersicum (tomato)Positive and negative results
2 papers in the same direction as this paper · 2 in the opposite direction
- no effect
- no effect
- positive
1 paper more in this group
See all 5 papers →insecticide · disease · Solanum lycopersicum (tomato)Positive and negative results
17 papers in the same direction as this paper · 1 in the opposite direction
- negative
- positive
- positive
15 papers more in this group
See all 19 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.