Abstract
Tomato bacterial spot, caused by Xanthomonas spp. complex, is a constant threat to tomato (Solanum lycopersicum) commercial production, but is especially severe in Florida and the southeastern US when weather conditions become conducive for disease development. In an effort to develop more sustainable strategies for reducing severity of the disease, we investigated various combinations of PGPR strains, bacterial antagonists, bacteriophages and SAR inducers (harpin, acibenzolar-S-methyl) in greenhouse and field trials. The idea was to search for alternative treatments that could be integrated with conventional practices, in order to improve disease control and yield responses. After screening single treatments and their combinations for efficacy in a series of greenhouse experiments, acibenzolar-S-methyl (ASM) and phage treatment provided the most promising results. In field trials, carried out in three consecutive seasons, ASM significantly reduced disease severity compared to the untreated control. However, the combination of ASM and formulated host-specific phages provided an additional reduction in disease pressure and resulted in more efficient foliar disease control than ASM, phage, or copper-macozeb alone. Integrated application of phages, ASM and other practices is currently widely used in greenhouses and production fields in Florida as a part of a standard integrated management strategy for tomato bacterial spot control. http://www.actahort.org/books/808/index.htm
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Claims 5
Claim · model-written summary
In field trials, ASM significantly reduced tomato bacterial spot severity relative to the untreated control.
- Taxon
- tomato
Solanum lycopersicume0 - Treatment
- ASMe1
- Interactor
- Xanthomonas spp.
_-_Howard_F._Schwartz%2C_Colorado_State_University.jpg?width=60)
Xanthomonase0pathogen - Outcome
- disease severitye1
- Direction
- reducede1
- Comparator
- untreated controle1
- Setting
- field trialse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_-_Howard_F._Schwartz%2C_Colorado_State_University.jpg?width=500)
Verbatim
e0“Tomato bacterial spot, caused by Xanthomonas spp. complex, is a constant threat to tomato (Solanum lycopersicum) commercial production”
e1“In field trials, carried out in three consecutive seasons, ASM significantly reduced disease severity compared to the untreated control”
Claim · model-written summary
Combining ASM with host-specific phages gave an additional reduction in tomato bacterial spot disease pressure.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- combination of ASM and formulated host-specific phagese1
- Interactor
- Xanthomonas spp.Xanthomonase0pathogen
- Outcome
- disease pressuree1
- Direction
- additional reductione1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Tomato bacterial spot, caused by Xanthomonas spp. complex, is a constant threat to tomato (Solanum lycopersicum) commercial production”
e1“However, the combination of ASM and formulated host-specific phages provided an additional reduction in disease pressure and resulted in more efficient foliar disease control than ASM, phage, or copper-macozeb alone”
Claim · model-written summary
Combining ASM with host-specific phages gave more efficient foliar disease control than ASM, phage or copper-macozeb alone.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- combination of ASM and formulated host-specific phagese1
- Interactor
- Xanthomonas spp.Xanthomonase0pathogen
- Outcome
- foliar disease controle1
- Direction
- more efficiente1
- Comparator
- ASM, phage, or copper-macozeb alonee1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Tomato bacterial spot, caused by Xanthomonas spp. complex, is a constant threat to tomato (Solanum lycopersicum) commercial production”
e1“However, the combination of ASM and formulated host-specific phages provided an additional reduction in disease pressure and resulted in more efficient foliar disease control than ASM, phage, or copper-macozeb alone”
Claim · model-written summary
In greenhouse screening, ASM and phage treatment gave the most promising results among single treatments and their combinations.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- acibenzolar-S-methyl (ASM) and phage treatmente1
- Outcome
- most promising resultse1
- Direction
- most promisinge1
- Comparator
- single treatments and their combinationse1
- Setting
- a series of greenhouse experimentse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Tomato bacterial spot, caused by Xanthomonas spp. complex, is a constant threat to tomato (Solanum lycopersicum) commercial production”
e1“After screening single treatments and their combinations for efficacy in a series of greenhouse experiments, acibenzolar-S-methyl (ASM) and phage treatment provided the most promising results”
Claim · model-written summary
Integrated application of phages, ASM and other practices is widely used for tomato bacterial spot control in Florida.
- Taxon
- tomatoSolanum lycopersicume0
- Outcome
- widely used in greenhouses and production fields in Floridae1
- Setting
- Floridae1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Tomato bacterial spot, caused by Xanthomonas spp. complex, is a constant threat to tomato (Solanum lycopersicum) commercial production”
e1“Integrated application of phages, ASM and other practices is currently widely used in greenhouses and production fields in Florida as a part of a standard integrated management strategy for tomato bacterial spot control”
The same questions in other papers
acibenzolar-S-methyl · Xanthomonas · Solanum lycopersicum (tomato)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.