Abstract
The fungus Corynespora cassiicola is the causal agent of target spot in cucumber. Under favorable climatic conditions it can cause serious damage in this horticultural crop. In Brazil, there exists not enough knowledge to determine efficient control measures to the disease. This investigation was carried out to evaluate: a) the reactions of nine cucumber hybrids to C. cassiicola; b) the sensibility of six isolates of C. cassiicola to fungicides in vitro (captan, chlorothalonil, mancozeb, azoxystrobin, difenoconazole, carbendazin, tebuconazole and thiophanate-methyl), used in concentrations of 0, 1, 10, 100 and 1,000 µg mL-1 of active ingredient and c) protective and curative chemical treatments with the same fungicides used in vitro in cucumber plants inoculated with C. cassiicola. The cucumber hybrids were evaluated using the scale of notes and diagrammatic of target spot severity. The more resistant hybrids to the pathogen were Taisho, Nikkey, Yoshinari and Safira. The difenoconazole fungicide caused the most mycelial growth inhibition (MGI) and showed the lowest ED50. Thiophanate-methyl was the worst fungicide, it did not inhibit the mycelial growth of the fungus. Azoxystrobin was the most efficient in controlling the disease, although it has to be registered in Ministry of Agriculture, Livestock and Food Supply in Brazil before its recommendation.
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Claims 5
Claim · model-written summary
Taisho, Nikkey, Yoshinari and Safira were the more resistant cucumber hybrids.
- Taxon
- cucumber
Cucumis sativust0 - Material
- Taisho, Nikkey, Yoshinari and Safirae0
- Outcome
- more resistante0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The more resistant hybrids to the pathogen were Taisho, Nikkey, Yoshinari and Safira.”
t0“in cucumber”
Claim · model-written summary
Difenoconazole caused the most mycelial growth inhibition.
- Taxon
- cucumberCucumis sativust0
- Treatment
- difenoconazolee0
- Outcome
- mycelial growth inhibitione0
- Direction
- moste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The difenoconazole fungicide caused the most mycelial growth inhibition (MGI)”
t0“in cucumber”
Claim · model-written summary
Thiophanate-methyl did not inhibit fungal mycelial growth.
- Taxon
- cucumberCucumis sativust0
- Treatment
- Thiophanate-methyle0
- Outcome
- mycelial growth of the funguse0
- Direction
- did not inhibite0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Thiophanate-methyl was the worst fungicide, it did not inhibit the mycelial growth of the fungus.”
t0“in cucumber”
Claim · model-written summary
Azoxystrobin was the most efficient treatment for disease control.
- Taxon
- cucumberCucumis sativust0
- Treatment
- Azoxystrobine0
- Outcome
- controlling the diseasee0
- Direction
- most efficiente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Azoxystrobin was the most efficient in controlling the disease”
t0“in cucumber”
Claim · model-written summary
Azoxystrobin requires registration in Brazil before recommendation.
- Taxon
- cucumberCucumis sativust0
- Outcome
- registered in Ministry of Agriculture, Livestock and Food Supply in Brazil before its recommendatione0
- Setting
- Brazile0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“it has to be registered in Ministry of Agriculture, Livestock and Food Supply in Brazil before its recommendation.”
t0“in cucumber”
The same questions in other papers
thiophanate-methyl · disease · Cucumis sativus (cucumber)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- positive
- no effect
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.