The efficacy of conventional and organic insecticides on nymphs and adults of Scaphoideus titanus, the main vector of phytoplasmas associated with the grapevine yellow Flavescence dorée, was evaluated. In trials carried out in the open field, etofenprox and deltamethrin proved to be the best conventional insecticides, while pyrethrins were the most impactful among organic insecticides. Insecticide residual effects were evaluated in semi-field and field conditions. Acrinathrin showed the most significant residual effects, followed by other pyrethroids. Organic insecticides gave poor results in terms of residual efficacy. In field trials there was a loss of residual activity coinciding with higher temperatures. mplications for S. titanus control strategies are discussed
Efficacy of Conventional and Organic Insecticides against Scaphoideus titanus: Field and Semi-Field Trials
Guerrieri, Enea;Pavasini, Marika;Mori, Nicola;
2023-01-01
Abstract
The efficacy of conventional and organic insecticides on nymphs and adults of Scaphoideus titanus, the main vector of phytoplasmas associated with the grapevine yellow Flavescence dorée, was evaluated. In trials carried out in the open field, etofenprox and deltamethrin proved to be the best conventional insecticides, while pyrethrins were the most impactful among organic insecticides. Insecticide residual effects were evaluated in semi-field and field conditions. Acrinathrin showed the most significant residual effects, followed by other pyrethroids. Organic insecticides gave poor results in terms of residual efficacy. In field trials there was a loss of residual activity coinciding with higher temperatures. mplications for S. titanus control strategies are discussed
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