Selection of Fungicides for Control of Eucalypt Powdery Mildew

Authors

  • Rafaela Mazur Bizi Federal University of Paraná image/svg+xml
  • Albino Garcia Grigoletti Júnior Embrapa Florestas
  • Celso Garcia Auer Embrapa Florestas

Keywords:

Chemical control, disease, Eucalyptus benthamii

Abstract

The objective of this study was to find effective fungicides against eucalypt powdery mildew. Fungicides tested were chlorothalonil, fenarimol, sulfur, tebuconazole, propiconazole, benzothiazole, pyraclostrobin + epoxiconazole and triadimenol. These fungicides were sprayed on Eucalyptus benthamii seedlings in a greenhouse infested with powdery mildew. Severity was evaluated at 9, 16, 23, 30 and 37 days after spraying, classifying symptoms observed with a scale 0 (symptoms absent) to 4 (strong symptoms). Best treatments were obtained with pyraclostrobin + epoxiconazole, propiconazole + trifloxystrobin and triadimenol, with an infection index average of 0.39, 0.63 and 1.01, respectively.

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Issue

No. 51 (2005): jul./dez.

Section

Scientific Notes

License

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How to Cite

BIZI, R. M.; GRIGOLETTI JÚNIOR, A. G.; AUER, C. G. Selection of Fungicides for Control of Eucalypt Powdery Mildew. Pesquisa Florestal Brasileira, n. 51, p. 165, 9 Mar.2011.

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