Claim · model-written summary
Mancozeb treatments gave the best onion downy mildew control.
- Taxon
- onion
Allium cepat0 - Treatment
- mancozebe0
- Outcome
- best controle0
- Direction
- beste0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“In both trials, treatments containing mancozeb gave the best control”
t0“onion downy mildew”
Title
RG O'Brien Australian Journal of Experimental Agriculture 1992. doi:10.1071/ea9920669
Other claims from this paper (17)
- Intervention effect Isolate 3014 did not respond to increasing metalaxyl concentrations.
- Intervention effect Isolate 3014 did not respond to increasing benalaxyl concentrations.
- Intervention effect Isolate 3014 did not respond to increasing oxadixyl concentrations.
- Observation Isolate 2967 was sensitive to metalaxyl, EC50 1.6 mg a.i./L.
- Observation Isolate 2967 was sensitive to benalaxyl, EC50 6.0 mg a.i./L.
- Observation Isolate 2967 was sensitive to oxadixyl, EC50 12.1 mg a.i./L.
- Observation Isolate 3014 was sensitive to dimethomorph at EC50 4.3 mg a.i./L.
- Observation Isolate 2967 was sensitive to dimethomorph at EC50 1.4 mg a.i./L.
- Intervention effect Mancozeb treatment increased yield by 60% in 1990.
- Intervention effect Metalaxyl did not differ from the check in downy mildew severity.
- Intervention effect Metalaxyl did not differ from the check in onion yield.
- Intervention effect Copper hydroxide did not significantly reduce downy mildew severity in 1990.
- Intervention effect Chlorothalonil did not significantly reduce downy mildew severity in 1990.
- Intervention effect Fosetyl-Al did not significantly reduce downy mildew severity in 1990.
- Intervention effect Propamocarb did not significantly reduce downy mildew severity in 1990.
- Intervention effect Dimethomorph significantly reduced disease severity.
- Intervention effect Dimethomorph increased onion yield by 24%.