Abstract
Trichoderma harzianum T39 (Trichodex®) and T. longibrachiatum strain 6 were applied on grapevine to determine their effectiveness against Phaeomoniella chlamydospora on vine cuttings and pruning wounds. Cuttings were dipped in a Trichoderma suspension either before or after callusing. Pre-callusing dips were carried out for 3 years and yielded contradictory results. By contrast, post-callusing Trichoderma dips led to significant growth of hairy roots and a reduction in the longitudinal discolorations caused by P. chlamydospora inoculated into the rootstock after dipping. Trichoderma spp. were also applied to pruning wounds of grafted potted vines, which were then inoculated by placing drops of a conidial suspension of P. chlamydospora on the wound surface. Trichoderma application here prevented black goo and necrosis in the wood below the wound. In the vineyard, T. harzianum T39 was sprayed after pruning for two consecutive years. The biocontrol agent was reisolated from the wood close to the sprayed pruning wounds for up to 2 months after spraying. Although further investigations are necessary, our findings suggest that Trichoderma could be one of the steps in the control of esca.
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Claims 6
Claim · model-written summary
Pre-callusing Trichoderma dips gave contradictory results across three years.
VitisNot reportedInteractorInteractor roleComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pre-callusing dips were carried out for 3 years and yielded contradictory results.”
t0“applied on grapevine”
Claim · model-written summary
Post-callusing Trichoderma dips significantly promoted hairy-root growth.
- Treatment
- post-callusing Trichoderma dipse0
- Interactor
- Trichoderma
Trichodermae0biocontrol_agent - Outcome
- growth of hairy rootse0
- Direction
- growthe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“post-callusing Trichoderma dips led to significant growth of hairy roots”
t0“applied on grapevine”
Claim · model-written summary
Post-callusing Trichoderma dips reduced discoloration caused by P. chlamydospora.
- Organ / stage
- rootstocke0
- Treatment
- post-callusing Trichoderma dipse0
- Interactor
- P. chlamydosporaPhaeomoniella chlamydosporae0pathogen
- Second interactor
- TrichodermaTrichodermae0biocontrol_agent
- Outcome
- longitudinal discolorations caused by P. chlamydosporae0
- Direction
- reductione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“post-callusing Trichoderma dips led to significant growth of hairy roots and a reduction in the longitudinal discolorations caused by P. chlamydospora inoculated into the rootstock after dipping”
t0“applied on grapevine”
Claim · model-written summary
Trichoderma on pruning wounds prevented black goo and necrosis below the wound.
- Organ / stage
- wood below the wounde0
- Treatment
- Trichoderma applicatione0
- Interactor
- TrichodermaTrichodermae0biocontrol_agent
- Outcome
- black goo and necrosis in the wood below the wounde0
- Direction
- preventede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Trichoderma application here prevented black goo and necrosis in the wood below the wound.”
t0“applied on grapevine”
Claim · model-written summary
T. harzianum T39 persisted near sprayed wounds for up to two months.
- Organ / stage
- wood close to the sprayed pruning woundse0
- Interactor
- biocontrol agente0biocontrol_agent
- Outcome
- biocontrol agent was reisolatede0
- Value
- up to 2 monthse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The biocontrol agent was reisolated from the wood close to the sprayed pruning wounds for up to 2 months after spraying.”
t0“applied on grapevine”
Claim · model-written summary
The authors suggest Trichoderma as one step in esca control.
- Interactor
- TrichodermaTrichodermae0biocontrol_agent
- Outcome
- Trichoderma could be one of the steps in the control of escae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Trichoderma could be one of the steps in the control of esca”
t0“applied on grapevine”
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See all 8 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.