Abstract
Rhizopus rot caused by Rhizopus stolonifer is a potentially serious postharvest disease of Canadian-grown peaches. Several new fungicides are effective against brown rot (Monilinia fructicola) of peaches, but little is known of their postharvest efficacies against R. stolonifer. Harvested peaches were arranged in trays, individually punctured once and co-treated with a suspension of both R. stolonifer sporangiospores and cells of an isolate of Pseudomonas syringae or one of 13 fungicides at 0.51.0 times the dilute concentration used to control brown rot in orchard programs. In subsequent experiments, the peaches were inoculated with R. stolonifer, incubated for 6 h, chilled, and a day later the inoculated sites were brushed with a suspension of fludioxonil, tebuconazole, or P. syringae. In the co-treatment studies, azoxystrobin, fenhexamid, fenbuconazole, myclobutanil, benomyl, and sulfur reduced rhizopus rot by 022%. Cyprodinil and propiconazole gave 2060% reduction, while fludioxonil, tebuconazole, and two P. syringae isolates gave 75100% reduction, comparable with that of dicloran and iprodione. Post-inoculation brushing treatments with P. syringae at 10 000 µg ESC 10/mL gave less than 20% control, while fludioxonil and tebuconazole gave 90% control (EC90) at 472 and 718 µg/mL, respectively.
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Claims 2
Claim · model-written summary
Post-inoculation brushing with P. syringae gave less than 20% control of Rhizopus rot of peaches
- Taxon
- peaches
Prunus persicae1 - Treatment
- Post-inoculation brushing treatments with P. syringaee4
- Interactor
- Rhizopus stolonifer
Rhizopus stolonifere1pathogen - Second interactor
- P. syringae
Pseudomonas syringaee4biocontrol_agent - Outcome
- controle4
- Direction
- lowerinferrede4
- Value
- less than 20%e4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Rhizopus rot caused by Rhizopus stolonifer is a potentially serious postharvest disease of Canadian-grown peaches”
e4“Post-inoculation brushing treatments with P. syringae at 10 000 µg ESC 10/mL gave less than 20% control”
Claim · model-written summary
Fludioxonil and tebuconazole gave 90% control of Rhizopus rot of peaches at EC90 of 472 and 718 µg/mL
- Taxon
- peachesPrunus persicae1
- Treatment
- fludioxonil and tebuconazolee5
- Interactor
- Rhizopus stoloniferRhizopus stolonifere1pathogen
- Outcome
- controle5
- Direction
- higherinferrede5
- Value
- 90%e5
- Qualifier
- EC90) at 472 and 718 µg/mLe5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Rhizopus rot caused by Rhizopus stolonifer is a potentially serious postharvest disease of Canadian-grown peaches”
e5“while fludioxonil and tebuconazole gave 90% control (EC90) at 472 and 718 µg/mL, respectively”
The same questions in other papers
tebuconazole · Rhizopus stolonifer · Prunus persica (peach)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.