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 produced contradictory results over three years.
- Treatment
- Pre-callusing dipse0
- Interactor
- Trichoderma
Trichodermae1biocontrol_agent - Outcome
- contradictory resultse0
VitisNot reportedComparatorDirection
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”
e1“Cuttings were dipped in a Trichoderma suspension either before or after callusing”
e2“applied on grapevine”
Claim · model-written summary
Post-callusing Trichoderma dips significantly increased hairy-root growth.
- Treatment
- post-callusing Trichoderma dipse0
- Interactor
- TrichodermaTrichodermae0biocontrol_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”
e1“applied on grapevine”
Claim · model-written summary
Post-callusing Trichoderma dips reduced longitudinal discoloration caused by inoculated P. chlamydospora.
- Treatment
- post-callusing Trichoderma dipse0
- Interactor
- P. chlamydosporaPhaeomoniella chlamydosporae0pathogen
- Second interactor
- TrichodermaTrichodermae0biocontrol_agent
- Outcome
- longitudinal discolorationse0
- 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”
e1“applied on grapevine”
Claim · model-written summary
Trichoderma on pruning wounds prevented black goo and necrosis below the wound.
- Treatment
- Trichoderma applicatione0
- Interactor
- P. chlamydosporaPhaeomoniella chlamydosporae1pathogen
- Second 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”
e1“potted vines, which were then inoculated by placing drops of a conidial suspension of P. chlamydospora on the wound surface”
e2“applied on grapevine”
Claim · model-written summary
T. harzianum T39 was recovered near sprayed pruning wounds for up to two months.
- Treatment
- T. harzianum T39e1
- Interactor
- T. harzianum T39Trichoderma harzianume1biocontrol_agent
- Outcome
- reisolatede0
- Value
- up to 2 monthse0
- Setting
- vineyarde1
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”
e1“In the vineyard, T. harzianum T39 was sprayed after pruning for two consecutive years”
e2“applied on grapevine”
Claim · model-written summary
The authors suggest Trichoderma as one step in esca control, pending further investigation.
- 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“Although further investigations are necessary, our findings suggest that Trichoderma could be one of the steps in the control of esca”
e1“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.