Abstract
We investigated the effects of ultraviolet (UV)-reflective mulch and two rates of nitrogen fertilization on populations of Frankliniella spp. thrips and on the incidence of tomato spotted wilt in field-grown tomato in northern Florida. The higher of the two soil nitrogen fertilizer treatments significantly increased populations of Frankliniella occidentalis (Pergande), whereas mulch reflectance significantly decreased populations of F. occidentalis. Populations of Frankliniella tritici (Fitch) were decreased only by UV-reflective mulch. Decreased thrips populations in UV-reflective mulch plots were probably due to disruptions in host-finding behavior. Increased thrips populations in tomatoes treated with the higher nitrogen fertilization rate were probably due in part to increased nutrients available in flowers. Incidence of tomato spotted wilt was significantly decreased in tomatoes grown on UV-reflective mulch, whereas disease incidence was significantly greater in increased nitrogen-fertilized plots. This research reveals that cultural practices resulted in up to 45% reduction in the numbers of vector and nonvector species of flower thrips and up to 50% reduction in tomato spotted wilt.
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Claims 9
Claim · model-written summary
Higher soil nitrogen significantly increased Frankliniella occidentalis populations in tomato.
- Taxon
- Tomato
Solanum lycopersicumt0 - Treatment
- higher of the two soil nitrogen fertilizer treatmentse0
- Interactor
- Frankliniella occidentalis
Frankliniella occidentalise0pest - Outcome
- populations of Frankliniella occidentalise0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The higher of the two soil nitrogen fertilizer treatments significantly increased populations of Frankliniella occidentalis (Pergande)”
t0“in Tomato”
Claim · model-written summary
Reflective mulch significantly decreased F. occidentalis populations in tomato.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- mulch reflectancee0
- Interactor
- F. occidentalisFrankliniella occidentalise0pest
- Outcome
- populations of F. occidentalise0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“mulch reflectance significantly decreased populations of F. occidentalis”
t0“in Tomato”
Claim · model-written summary
UV reflective mulch decreased Frankliniella tritici populations in tomato.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- UV-reflective mulche0
- Interactor
- Frankliniella triticiFrankliniella triticie0pest
- Outcome
- Populations of Frankliniella triticie0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Populations of Frankliniella tritici (Fitch) were decreased only by UV-reflective mulch”
t0“in Tomato”
Claim · model-written summary
The authors attribute lower thrips populations under reflective mulch to disrupted host finding.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- UV-reflective mulche0
- Outcome
- Decreased thrips populationse0
- Qualifier
- disruptions in host-finding behaviore0
ThripsOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Decreased thrips populations in UV-reflective mulch plots were probably due to disruptions in host-finding behavior”
t0“in Tomato”
Claim · model-written summary
The authors partly attribute increased thrips populations under higher nitrogen to greater flower nutrients.
- Taxon
- tomatoesSolanum lycopersicume0
- Treatment
- higher nitrogen fertilization ratee0
- Outcome
- Increased thrips populationse0
- Qualifier
- increased nutrients available in flowerse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increased thrips populations in tomatoes treated with the higher nitrogen fertilization rate were probably due in part to increased nutrients available in flowers”
Claim · model-written summary
UV reflective mulch significantly reduced tomato spotted wilt incidence.
- Taxon
- tomatoesSolanum lycopersicume0
- Treatment
- UV-reflective mulche0
- Outcome
- Incidence of tomato spotted wilte0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Incidence of tomato spotted wilt was significantly decreased in tomatoes grown on UV-reflective mulch”
Claim · model-written summary
Higher nitrogen fertilization significantly increased tomato spotted wilt incidence.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- increased nitrogen-fertilized plotse0
- Outcome
- disease incidencee0
- Direction
- greatere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“disease incidence was significantly greater in increased nitrogen-fertilized plots”
t0“in Tomato”
Claim · model-written summary
Cultural practices reduced flower thrips numbers by up to 45%.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- cultural practicese0
- Interactor
- flower thripse0pest
- Outcome
- numbers of vector and nonvector species of flower thripse0
- Direction
- reductione0
- Value
- up to 45%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“cultural practices resulted in up to 45% reduction in the numbers of vector and nonvector species of flower thrips”
t0“in Tomato”
Claim · model-written summary
Cultural practices reduced tomato spotted wilt by up to 50%.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- cultural practicese0
- Outcome
- tomato spotted wilte0
- Direction
- reductione0
- Value
- up to 50%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“cultural practices resulted in up to 45% reduction in the numbers of vector and nonvector species of flower thrips and up to 50% reduction in tomato spotted wilt”
t0“in Tomato”
The same questions in other papers
uv · disease · Solanum lycopersicum (tomato)Positive and negative results
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- negative
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See all 19 papers →mulching · disease · Solanum lycopersicum (tomato)Positive and negative results
23 papers in the same direction as this paper · 5 in the opposite direction
- negative
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- no effect
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See all 29 papers →nitrogen · disease · Solanum lycopersicum (tomato)Positive and negative results
14 papers in the same direction as this paper · 19 in the opposite direction
- positive
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30 papers more in this group
See all 34 papers →fertilization · Frankliniella occidentalis · Solanum lycopersicum (tomato)Results agree
1 paper in the same direction as this paper
- negative
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.