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Alternatives of control of Dawn Crop and Crop Mole in pre-harvest in Peasant Fruit

Agricultural Sciences 2019年第1期10卷 17-24页

作者： Vicente Luíz de Carvalho Rodrigo Luz da Cunha Angelo Albérico Alvarenga Pedro Henrique Abreu Moura JoséClélio de Andrade Paulo Márcio Norberto Agricultural Research Company of Minas Gerais EPAMIGCampus UFLALavraBrazil

Fruit rot, besides causing losses in production, reduces the final quality of the product interfering in the commercialization. The objective of this work was to evaluate the efficiency of alternative products applied to pre-harvest for control of brown rot (Monilinia fructicola) and soft rot (Rhizopus spp.) In peaches. The experiment was conducted in the municipality of Nepomuceno-MG, in a peach orchard of the cultivar Diamante. The experimental design was a randomized block design with 7 treatments and 3 replicates, with field plots formed by 12 plants (arranged in 3 rows), being considered for the evaluations only the two central plants. Three applications were made at flowering and at 21;7 and 3 days before harvest, with solutions containing the following treatments: 1-Clove oil 0.1%;2-silicate clay 1.5%;3-Phosphite K 0.20%;4-Benzalkonium chloride 0.25%;5-Azoxystrobin 0.02%;6-Iprodione 0.15%;7-Witness (water only). Treatments 4 and 5 were applied only at 21 and 7 days before harvest. Ten fruits were selected and placed in sterile trays under uncontrolled conditions, with disease evaluations at 3 and 6 days after the beginning of storage in 2005 and at 3;6 and 9 days in 2006. The iprodione controlled the incidence of M. fructicola and had no effect on Rhizopus spp. Clove oil controlled the incidence and severity of M. fructicola by the fifth day and Rhizopus spp. by the sixth day. The phosphites of k, benzalkonium chloride and azoxystrobin were efficient in controlling the incidence and severity of Rhizopus spp. and had no effect on M. fructicola.

关键词： Peach Fruit Rot pre-harvest control

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