BACKGROUND: Control of Botrytis bunch rot (BBR) is currently based on the application of fungicides at four timings corresponding to specific growth stages of vines: end of flowering (A), pre-bunch closure (B), veraison (C) and before harvest (D). The current research provides a network meta-analysis of 116 studies conducted between 1963 and 2016 in nine countries, in which 14 strategies (based on combinations of 1, 2, 3, or 4 sprays applied in A, B, C, and/or D) were compared. RESULTS: When a one-spray strategy was applied, BBR control was more effective with sprays applied in A, C, or D than B. With a two-spray strategy, strategy AC provided similar control as strategy BC; strategy CD also provided good control. For a 3-spray strategy, the best disease control was consistently obtained with strategy ACD. Four-spray strategy ABCD provided the best control but often involved needless sprays so that the routine application of four sprays is not justified. CONCLUSIONS: Spraying at timing A seems to be very important for achieving efficient and flexible disease control. Flexibility is reduced by spraying at timing B rather than A. © 2018 Society of Chemical Industry.

Gonzalez Dominguez, E., Fedele, G., Caffi, T., Delière, L., Sauris, P., Gramaje, D., Ramos-Saez De Ojer, J. L., Díaz-Losada, E., Díez-Navajas, A. M., Bengoa, P., Rossi, V., A network meta-analysis provides new insight into fungicide scheduling for the control of Botrytis cinerea in vineyards, <<PEST MANAGEMENT SCIENCE>>, 2018; 75 (2): 324-332. [doi:10.1002/ps.5116] [http://hdl.handle.net/10807/128167]

A network meta-analysis provides new insight into fungicide scheduling for the control of Botrytis cinerea in vineyards

Gonzalez Dominguez, Elisa
Primo
;
Fedele, Giorgia
Secondo
;
Caffi, Tito;Rossi, Vittorio
Ultimo
2019

Abstract

BACKGROUND: Control of Botrytis bunch rot (BBR) is currently based on the application of fungicides at four timings corresponding to specific growth stages of vines: end of flowering (A), pre-bunch closure (B), veraison (C) and before harvest (D). The current research provides a network meta-analysis of 116 studies conducted between 1963 and 2016 in nine countries, in which 14 strategies (based on combinations of 1, 2, 3, or 4 sprays applied in A, B, C, and/or D) were compared. RESULTS: When a one-spray strategy was applied, BBR control was more effective with sprays applied in A, C, or D than B. With a two-spray strategy, strategy AC provided similar control as strategy BC; strategy CD also provided good control. For a 3-spray strategy, the best disease control was consistently obtained with strategy ACD. Four-spray strategy ABCD provided the best control but often involved needless sprays so that the routine application of four sprays is not justified. CONCLUSIONS: Spraying at timing A seems to be very important for achieving efficient and flexible disease control. Flexibility is reduced by spraying at timing B rather than A. © 2018 Society of Chemical Industry.
2019
Inglese
Gonzalez Dominguez, E., Fedele, G., Caffi, T., Delière, L., Sauris, P., Gramaje, D., Ramos-Saez De Ojer, J. L., Díaz-Losada, E., Díez-Navajas, A. M., Bengoa, P., Rossi, V., A network meta-analysis provides new insight into fungicide scheduling for the control of Botrytis cinerea in vineyards, <<PEST MANAGEMENT SCIENCE>>, 2018; 75 (2): 324-332. [doi:10.1002/ps.5116] [http://hdl.handle.net/10807/128167]
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