Abstract
We evaluated host resistance and fungicide forecasting as components of integrated management in the Toluca Valley of central Mexico. Potato cvs. Rosita and Norteña showed high levels of resistance (20 and 4% final disease severity, respectively) in the no-spray controls, whereas susceptible cv. Alpha was at 90% defoliation well before the end of the season. Disease on Alpha was well managed with a weekly spray of chlorothalonil. None of three published forecast systems was entirely appropriate for this pathosystem. SIM-CAST accurately allocated fungicide for a susceptible cultivar but needs to be adapted for the high level of resistance of Rosita and Norteña. TOM-CAST and BLITECAST did not recommend the initial fungicide application until after disease was well established in the plots. We believe that the low-temperature response of Phytophthora infestans needs to be reevaluated for the highland tropics.
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Claims 10
Claim · model-written summary
Rosita had 20% final late blight severity without spraying.
- Taxon
- Potato
Solanum tuberosume0 - Material
- Rositae0
- Treatment
- no-spray controlse0
- Outcome
- final disease severitye0
- Value
- 20e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Potato cvs. Rosita and Norteña showed high levels of resistance (20 and 4% final disease severity, respectively) in the no-spray controls”
Claim · model-written summary
Norteña had 4% final late blight severity without spraying.
- Taxon
- PotatoSolanum tuberosume0
- Material
- Norteñae0
- Treatment
- no-spray controlse0
- Outcome
- final disease severitye0
- Value
- 4%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Potato cvs. Rosita and Norteña showed high levels of resistance (20 and 4% final disease severity, respectively) in the no-spray controls”
Claim · model-written summary
Susceptible Alpha reached 90% defoliation before season end.
- Taxon
- PotatoSolanum tuberosumt0
- Material
- Alphae0
- Outcome
- defoliatione0
- Value
- 90%e0
- Qualifier
- well before the end of the seasone0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“susceptible cv. Alpha was at 90% defoliation well before the end of the season”
t0“Potato Late-Blight”
Claim · model-written summary
Weekly chlorothalonil sprays managed disease on Alpha.
- Taxon
- PotatoSolanum tuberosumt0
- Material
- Alphae0
- Treatment
- weekly spray of chlorothalonile0
- Outcome
- Disease on Alphae0
- Direction
- well managede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Disease on Alpha was well managed with a weekly spray of chlorothalonil”
t0“Potato Late-Blight”
Claim · model-written summary
None of three published forecast systems fully fit this pathosystem.
- Taxon
- PotatoSolanum tuberosumt0
- Outcome
- entirely appropriatee0
- Comparator
- this pathosysteme0
Not reportedValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“None of three published forecast systems was entirely appropriate for this pathosystem”
t0“Potato Late-Blight”
Claim · model-written summary
SIM-CAST accurately allocated fungicide for a susceptible cultivar.
- Taxon
- PotatoSolanum tuberosumt0
- Material
- susceptible cultivare0
- Outcome
- accurately allocated fungicidee0
Not reportedComparatorValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“SIM-CAST accurately allocated fungicide for a susceptible cultivar”
t0“Potato Late-Blight”
Claim · model-written summary
SIM-CAST needs adaptation for resistant Rosita and Norteña.
- Taxon
- PotatoSolanum tuberosumt0
- Material
- Rosita and Norteñae0
- Outcome
- needs to be adaptede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“needs to be adapted for the high level of resistance of Rosita and Norteña”
t0“Potato Late-Blight”
Claim · model-written summary
TOM-CAST delayed its initial spray recommendation until disease was established.
- Taxon
- PotatoSolanum tuberosumt0
- Outcome
- did not recommend the initial fungicide application until after disease was well established in the plotse0
Not reportedComparatorValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“TOM-CAST and BLITECAST did not recommend the initial fungicide application until after disease was well established in the plots”
t0“Potato Late-Blight”
Claim · model-written summary
BLITECAST delayed its initial spray recommendation until disease was established.
- Taxon
- PotatoSolanum tuberosumt0
- Outcome
- did not recommend the initial fungicide application until after disease was well established in the plotse0
Not reportedComparatorValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“TOM-CAST and BLITECAST did not recommend the initial fungicide application until after disease was well established in the plots”
t0“Potato Late-Blight”
Claim · model-written summary
The authors recommend reevaluating the low-temperature response of Phytophthora infestans for highland tropics.
- Taxon
- PotatoSolanum tuberosumt0
- Interactor
- Phytophthora infestans
Phytophthora infestanse0pathogen - Outcome
- needs to be reevaluatede0
- Setting
- highland tropicse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the low-temperature response of Phytophthora infestans needs to be reevaluated for the highland tropics”
t0“Potato Late-Blight”
The same questions in other papers
application · molecular: metabolites · Solanum tuberosum (potato)Positive and negative results
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- negative
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See all 23 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.