Abstract
Thrips is one of the most important vector species of the tomato spotted wilt tospovirus (TSWV) in Brazil. Two different pesticide application methods, drench x spray, using thiamethoxam were compared with commonly used insecticides for thrips control in tomato plants, Debora Plus. The experimental design consisted of a complete randomized block design with seven treatments and four replicates. Dosages of 150 and 200 g of a.i. per ha were used in just one drench application and 50 g of a.i. ha-1 sprayed, at weekly intervals, 48 days after sowing. The control efficacy of thiamethoxam was compared to diafenthiuron (400 g of a.i. ha-1), profenofos + cypermethrin (320+32 g of a.i. ha-1, respectively) and methamidophos (60 g of a.i. per hectolitre of water) in spray application. Cumulative number of plants with tospoviruses and the F. schultzei population from ten flowers per plot were registered. The mean cumulative number of plants with tospoviruses among treatments was not significantly different. No significant difference between thiamethoxam application methods and dosages on F. schultzei control, 24 days after application, were observed for thrips population. One drench application of higher dosages of thiamethoxam proved to be more environmentally advantageous than the pesticide applied at dosages of 50 g of a.i. ha-1 at weekly intervals. The vector control efficacy of thiamethoxam varied from 93 to 95%, independently of the application method and dosages. Diafenthiuron and profenofos + cypermethrin showed less efficacy (78 and 88%, respectively) but greater than those with methamidophos (71%). The products and dosages tested did not cause phytotoxicity in tomato leaves.
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Claims 8
Claim · model-written summary
Cumulative tospovirus affected tomato plants did not differ significantly among treatments.
- Taxon
- tomato plants
Solanum lycopersicumt0 - Treatment
- treatmentse0
- Interactor
- tospoviruses
Orthotospoviruse0pathogen - Outcome
- number of plants with tospovirusese0
- Direction
- not significantly differente0
- Comparator
- among treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The mean cumulative number of plants with tospoviruses among treatments was not significantly different.”
t0“tomato plants”
Claim · model-written summary
Thiamethoxam methods and doses did not significantly differ in thrips control at 24 days.
- Taxon
- tomato plantsSolanum lycopersicumt0
- Treatment
- thiamethoxam application methods and dosagese0
- Interactor
- F. schultzeie0pest
- Outcome
- thrips populatione0
- Direction
- No significant differencee0
- Qualifier
- 24 days after applicatione0
- Comparator
- between thiamethoxam application methods and dosagese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“No significant difference between thiamethoxam application methods and dosages on F. schultzei control, 24 days after application, were observed for thrips population.”
t0“tomato plants”
Claim · model-written summary
One high-dose thiamethoxam drench was judged environmentally advantageous over weekly spraying.
- Taxon
- tomato plantsSolanum lycopersicumt0
- Treatment
- One drench application of higher dosages of thiamethoxame0
- Outcome
- environmentally advantageouse0
- Direction
- more environmentally advantageouse0
- Comparator
- the pesticide applied at dosages of 50 g of a.i. ha-1 at weekly intervalse0
Not reportedInteractor
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“One drench application of higher dosages of thiamethoxam proved to be more environmentally advantageous than the pesticide applied at dosages of 50 g of a.i. ha-1 at weekly intervals.”
t0“tomato plants”
Claim · model-written summary
Thiamethoxam vector control efficacy ranged from 93 to 95% regardless of application method and dose.
- Taxon
- tomato plantsSolanum lycopersicumt0
- Treatment
- thiamethoxame0
- Outcome
- vector control efficacye0
- Value
- 93 to 95%e0
- Qualifier
- independently of the application method and dosagese0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The vector control efficacy of thiamethoxam varied from 93 to 95%, independently of the application method and dosages.”
t0“tomato plants”
Claim · model-written summary
Diafenthiuron efficacy was 78%, below thiamethoxam.
- Taxon
- tomato plantsSolanum lycopersicumt0
- Treatment
- Diafenthiurone0
- Outcome
- efficacye0
- Direction
- lesse0
- Value
- 78e0
- Comparator
- methamidophose0
Not reportedInteractor
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Diafenthiuron and profenofos + cypermethrin showed less efficacy (78 and 88%, respectively) but greater than those with methamidophos (71%).”
t0“tomato plants”
Claim · model-written summary
Profenofos plus cypermethrin efficacy was 88%.
- Taxon
- tomato plantsSolanum lycopersicumt0
- Treatment
- profenofos + cypermethrine0
- Outcome
- efficacye0
- Direction
- greatere0
- Value
- 88%e0
- Comparator
- methamidophose0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Diafenthiuron and profenofos + cypermethrin showed less efficacy (78 and 88%, respectively) but greater than those with methamidophos (71%).”
t0“tomato plants”
Claim · model-written summary
Methamidophos efficacy was 71%.
- Taxon
- tomato plantsSolanum lycopersicumt0
- Treatment
- methamidophose0
- Outcome
- efficacye0
- Value
- 71%e0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Diafenthiuron and profenofos + cypermethrin showed less efficacy (78 and 88%, respectively) but greater than those with methamidophos (71%).”
t0“tomato plants”
Claim · model-written summary
Tested products and doses caused no phytotoxicity in tomato leaves.
- Taxon
- tomatoSolanum lycopersicume0
- Organ / stage
- leavese0
- Treatment
- products and dosages testede0
- Outcome
- phytotoxicity in tomato leavese0
- Direction
- did not causee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The products and dosages tested did not cause phytotoxicity in tomato leaves.”
The same questions in other papers
thiamethoxam · pest · Solanum lycopersicum (tomato)Positive and negative results
2 papers in the same direction as this paper · 6 reporting no difference from an alternative
- positive
- positive
- positive
5 papers more in this group
See all 9 papers →diafenthiuron · control · Solanum lycopersicum (tomato)Results agree
1 paper in the same direction as this paper
- positive
cypermethrin · control · Solanum lycopersicum (tomato)Results agree
1 paper in the same direction as this paper
- positive
profenofos · control · Solanum lycopersicum (tomato)Results agree
2 papers in the same direction as this paper
- positive
- 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.