Global Advanced Research Journal of Agricultural Science (GARJAS) ISSN: 2315-5094
August 2017 Vol. 6(8): pp. 233-239
Copyright © 2017 Global Advanced Research Journals
Full Length Research Paper
Comparison of two fungicide in the control of black Sigatoka (Mycosphaerella fijiensis Morelet), in banana cv. ̍Dwarf giant ̍ (AAA), Teapa, Tabasco, México
Dagoberto Guillén Sánchez1, Ernesto Hernández Mendieta2, Catalina Rubio Granados2, Ricardo Hernández Pérez3*
1Universidad Autónoma del Estado de Morelos, Escuela de Estudios Superiores de Xalostoc. Av. Nicolás Bravo s/n, Parque Industrial Cuautla, Xalostoc, Ciudad Ayala, Morelos, México. CP. 62740.
2Grand Mend. México S.A. de C.V., Camino Real 21, San Luis Huexotla. CP. 56220. Texcoco, Mexico Estate.
*3Scientific Advisor. Fitolab. S.A de C.V. Calle Bugambilia No.9 Col. El Mirador de Puxtla. Cuautla, Morelos. México. CP. 62758.
Accepted 21 August, 2017
The study was carried out in September 2016, at the Experimental Station GRAND MEND MEXICO, S.A. of C.V (GMM), Tabasco, Mexico, with the objective of evaluating the efficacy of different doses of Azoxystrobin+Tebuconazole (Azo-Teb) in the control of black Sigatoka (Mycosphaerella fijiensis Morelet) in banana cv. Dwarf Giant (AAA). The trial was performed on a randomized complete block design consisting of four treatments and four replicates, where two fungicides, Azo-Teb at 350, 400 and 500 mL ha-1 and Tridemorph (Calixin 86 OL®) 500 mL ha-1 were applied. The damage on the youngest diseased leafs (DYDL), percentage of diseased leaves (PDL), weighted average of infection (PPI) and the fungicides efficacy were evaluated. The (PDL) for Azo-Teb at 400 and 500 mL ha-1 was 32.54 and 19.27 % respectively, and lower at Tridemorph with 12.87 %. In the DYDL the first symptoms were observed in positions 3.3 and 3.45, when the dose of 500 mL ha-1 of Azo-Teb and Tridemorph respectively was used. The PPI, after applying Azo-Teb and Tridemorph to 500 mL ha-1, was 0.29 and 0.17 % respectively, with no differences between them. After the third Azo-Teb evaluation at 500 mL ha-1 it offered adequate protection against black Sigatoka with an efficiency of 91.04 %, like the commercial fungicide Tridemorph that obtained 94.8 %. Therefore, it is recommended to apply the formulation Azo-Teb in the maximum dose for control of black Sigatoka.
Keywords: efficacy, azoxystrobin, tebuconazole, tridemorph.
- Dagoberto Guillén Sánchez on Google Scholar
- Dagoberto Guillén Sánchez on Pubmed
- Ernesto Hernández Mendieta on Google Scholar
- Ernesto Hernández Mendieta on Pubmed
- Catalina Rubio Granados on Google Scholar
- Catalina Rubio Granados on Pubmed
- Ricardo Hernández Pérez on Google Scholar
- Ricardo Hernández Pérez on Pubmed