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Insects 2017, 8(4), 129; doi:10.3390/insects8040129

Control of Scaphoideus titanus with Natural Products in Organic Vineyards

1
Department of Agricultural, Food, Environmental and Animal Sciences, University of Udine, via delle Scienze 206, Udine 33100, Italy
2
Department of Agronomy, Food, Natural Resources, Animals and Environment (DAFNAE), University of Padova, via dell’Università 16, Agripolis, Legnaro 35020, Padova, Italy
*
Author to whom correspondence should be addressed.
Received: 13 November 2017 / Revised: 1 December 2017 / Accepted: 13 December 2017 / Published: 16 December 2017
(This article belongs to the Special Issue Arthropod Pest Control in Orchards and Vineyards)
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Abstract

The leafhopper Scaphoideus titanus is the vector of ‘Candidatus Phytoplasma vitis’, the causal agent of Flavescence dorée (FD) a key disease for European viticulture. In organic vineyards, the control of S. titanus relies mostly on the use of pyrethrins that have suboptimal efficacy. During 2016, three field trials were conducted to evaluate the efficacy of kaolin, orange oil, insecticidal soap and spinosad against S. titanus nymphs, in comparison with pyrethrins. The activity of kaolin was evaluated also in the laboratory. In all field trials, kaolin had an efficacy against nymphs comparable to pyrethrins, while the other products were not effective. Laboratory results confirmed that kaolin increased nymph mortality. In organic vineyards, kaolin and pyrethrins are valuable tools in the management of FD. Nevertheless, their efficacy is lower compared to that of the synthetic insecticides used in conventional viticulture. Therefore, further research should be conducted in order to identify alternatives to synthetic insecticides for S. titanus control in the context of organic viticulture. View Full-Text
Keywords: flavescence dorée; Scaphoideus titanus; vector control; natural substances; kaolin; pyrethrins; organic viticulture flavescence dorée; Scaphoideus titanus; vector control; natural substances; kaolin; pyrethrins; organic viticulture
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Tacoli, F.; Mori, N.; Pozzebon, A.; Cargnus, E.; Da Vià, S.; Zandigiacomo, P.; Duso, C.; Pavan, F. Control of Scaphoideus titanus with Natural Products in Organic Vineyards. Insects 2017, 8, 129.

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