COTA, L. V.

MACEDO, P. E.

MAFFIA, L. A.

MIZUBUTI, E. S.

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2009 Meeting [Integrated management ofstrawberry gray mold~Itg-(,;::; r V I YUhttp://www .apsnet.orglmeetings/2009/abstracts/a09ma 147 .htrBackAPSHomepageAPS Abstract of PresentationIntegrated management of strawberry gray moldL. V. Cota (1), L. A. MAFFIA (2), E. 5. Mizubuti (2), P. E. Macedo (2)(1) Embrapa Milho e 50rgojEMBRAPAj5ete Lagoas, MG, Brazil; (2) Dept.FitopatologiajUFV, Viçosa, MG, BrazilPhytopathology 99: 525_ .Gray mold, caused by Botrytis cinerea, is an important strawberry disease. As graymold control is difficult, there is a need to evaluate integrated methods to achievedisease management. The efficiency of integrating Clonostachys rosea sprays,fungicide sprays, and crop debris removal to manage gray mold was evaluated in fieldexperiments conducted in 2006 and 2007. Leaf colonization by both C. rosea (CrC)and B. cinerea (BcC), gray mold incidence in both flowers (Iflower) and fruits (Ifruit),and yield were evaluated. In both years, CrC was higher in the treatments with nofungicide. BcC, Iflower and Ifruit were most reduced in the treatments that included C.rosea sprays, as compared to the check. Maximal reductions were achieved bycombining C. rosea sprays, fungicide sprays and debris removal (96.62%, 86.54%,and 65.33% reductions of BcC, Iflower and Ifruit, respectively). Maximal yield(103.14% increase as compared to the check) was achieved by combining the threetreatments. With just C. rosea sprays, BcC, Iflower, and Ifruit were reduced by92.01%,68.48%, and 65.33%, respectively, whereas yield was increased by 75.15%.Therefore biological control with C. rosea was an efficient method of managing graymold, which when associated to chemical and cultural methods increased the efficiencyof disease management under field conditions. Financial support: FAPEMIGand CNPq.retu rn to top© 2009 by The American Phytopathological Society. Ali rights reserved.1 de 1 25/8/2009 10:3

Integrated management of strawberry gray mold.

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Integrated management of strawberry gray mold.

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