BIO Web Conf.
Volume 44, 2022CO.NA.VI. 2020 – 8° Convegno Nazionale di Viticoltura
|Number of page(s)||5|
|Section||Biotic Stresses and Innovative Agronomic Approaches for Vineyard’s Defense|
|Published online||31 January 2022|
Evaluation of the activity of a plant extract against Plasmopara viticola in grapes
LANDLAB srl, Via Quintarello 12/A, 36050 Quinto Vicentino -VI Italy
* Corresponding author: firstname.lastname@example.org
Downy mildew, caused by Plasmopara viticola in grapevine, is one of the most devastating and widespread fungal disease on causing serious harm to grape production. The heavy use of chemical pesticides, necessary to control the pests and pathogens, has caused issues with the resistance, resurgence and residues in food, as well as creating diffuse environmental pollution. In the last decade, biological control started to offer an alternative safe(r) and effective method to control diseases. In this paper, we investigate the potential activity of a plant extract to protect grapevine from downy mildew when used in strategy with a reduced dosage of the conventional fungicides (PPP). Four strategies were tested, with two of them giving the best results. Indeed, the use of LL017 increased the tolerance of the vine against P. viticola compared to its control with the same dosage of PPP, and with an efficacy closer to the full dosage of the PPP. In the tests where the yield was evaluated, the treatment with LL017 always resulted in a higher yield than the respective control with the same dosage of PPP and, in some cases, it gave a higher yield than even the positive control.
© The Authors, published by EDP Sciences, 2022
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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