Abstract
Apple scab caused by Venturia inaequalis is a major disease in apple production. Scab epidemics during summer are driven by conidia produced only on apple leaves. In this situation, antagonists present in the phyllosphere may interfere with conidia of the pathogen during sporulation or infection. Within the EU-funded project REPCO, more than one hundred fungi were isolated from sporulating scab colonies and tested on apple seedlings for their potential to reduce sporulation of the pathogen. Since the aim of the study was to contribute to the development of a biocontrol product, only candidates were selected which fulfilled a range of additional criteria: those considered as major constraints in the development of biocontrol products. The best antagonists were applied under orchard conditions during two growing seasons. The antagonist Cladosporium cladosporioides H39 significantly reduced sporulation of V. inaequalis after most applications. However, in a few cases no effect was found. Protocols for production, down streaming and formulation have been developed for the antagonist. A new formulation as a wettable powder is now available for further orchard testing.
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Claims 3
Claim · model-written summary
Cladosporium cladosporioides H39 significantly reduced V. inaequalis sporulation after most orchard applications.
- Taxon
- apple
Malus domesticat0 - Treatment
- Cladosporium cladosporioides H39e0
- Interactor
- V. inaequalis
Venturia inaequalise0pathogen - Second interactor
- Cladosporium cladosporioides H39
Cladosporium cladosporioidese0biocontrol_agent - Outcome
- sporulation of V. inaequalise0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“apple scab”
e0“The antagonist Cladosporium cladosporioides H39 significantly reduced sporulation of V. inaequalis after most applications.”
Claim · model-written summary
A few applications of H39 had no effect on pathogen sporulation.
- Taxon
- appleMalus domesticat0
- Treatment
- Cladosporium cladosporioides H39e1
- Interactor
- V. inaequalisVenturia inaequalise1pathogen
- Second interactor
- Cladosporium cladosporioides H39Cladosporium cladosporioidese1biocontrol_agent
- Outcome
- sporulation of V. inaequalise1
- Direction
- no effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“apple scab”
e0“However, in a few cases no effect was found.”
e1“The antagonist Cladosporium cladosporioides H39 significantly reduced sporulation of V. inaequalis after most applications.”
Claim · model-written summary
Production and formulation protocols were developed for the antagonist.
- Taxon
- appleMalus domesticat0
- Outcome
- Protocols for production, down streaming and formulatione0
Not reportedComparatorValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“apple scab”
e0“Protocols for production, down streaming and formulation have been developed for the antagonist.”
The same questions in other papers
Cladosporium cladosporioides · Venturia inaequalis · Malus domestica (apple)Results agree
3 papers in the same direction as this paper
- positive
- positive
- 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.