Fungicides are tipically applied on strawberry (Fragaria × ananassa) to control of postharves decay caused by the fungus Botrytis cinerea. In the present paper, a field experiment was setted up with three different plots of strawberry plants, treated during the growing season (from flowering to fruit maturity) with four reduced-risk fungicides (pyrimethanil, PYR, boscalid, BOS, fludioxonil, FLU + cyprodinil, CYP) and an additional plot as not treated control, to control postharvest gray mold in straberry fruits. The appearance of gray mold was checked in all fruits, and the fungicide residues were measured at each sampling time. Results showed that the residue levels found during the entire period of the experiment never exceeded the MRL (Maximum Residue Limit) values for the four fungicides on strawberry fruits. Among the investigated molecules, FLU meets the worst conditions for degradation in the enzymatic pool of harvested fruits. The effectiveness in disease control was always high, with disease incidence, severity and McKinney index significantly reduced by all fungicide applications. In particular, the fludioxonil + cyprodinil combination proved to be the most effective, showing no disease after four days shelf life, while intermediate effectiveness was observed by the other fungicides, and the control showed a disease incidence of 70%.

Effectiveness of four syntethic fungicides in the control of postharvest gray mold of strawberry and analyses of residues in fruit / Monaci, Elga; Mattei, Sheyen; Landi, Lucia; Feliziani, Erica; Romanazzi, Gianfranco; Vischetti, Costantino. - ELETTRONICO. - (2018), pp. 17-18. (Intervento presentato al convegno 10th MGPR International Symposium of Pesticides in Food and the Environment in Mediterranean Countries tenutosi a Bologna, italy nel 12-14 september 2018).

Effectiveness of four syntethic fungicides in the control of postharvest gray mold of strawberry and analyses of residues in fruit

Elga Monaci;Sheyen Mattei;Lucia Landi;Erica Feliziani;Gianfranco Romanazzi;Costantino Vischetti
2018-01-01

Abstract

Fungicides are tipically applied on strawberry (Fragaria × ananassa) to control of postharves decay caused by the fungus Botrytis cinerea. In the present paper, a field experiment was setted up with three different plots of strawberry plants, treated during the growing season (from flowering to fruit maturity) with four reduced-risk fungicides (pyrimethanil, PYR, boscalid, BOS, fludioxonil, FLU + cyprodinil, CYP) and an additional plot as not treated control, to control postharvest gray mold in straberry fruits. The appearance of gray mold was checked in all fruits, and the fungicide residues were measured at each sampling time. Results showed that the residue levels found during the entire period of the experiment never exceeded the MRL (Maximum Residue Limit) values for the four fungicides on strawberry fruits. Among the investigated molecules, FLU meets the worst conditions for degradation in the enzymatic pool of harvested fruits. The effectiveness in disease control was always high, with disease incidence, severity and McKinney index significantly reduced by all fungicide applications. In particular, the fludioxonil + cyprodinil combination proved to be the most effective, showing no disease after four days shelf life, while intermediate effectiveness was observed by the other fungicides, and the control showed a disease incidence of 70%.
2018
978-88-95221-00-7
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11566/261726
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