In vitro Evaluation of Some Selected Fungicides against Pestalotia palmarum (Cooke.) Causal Agent of Grey Leaf Spot of Coconut
Department of Agrotechnology, Khulna University, Bangladesh
- *Corresponding Author:
- Sabiha Sultana
Department of Agrotechnology
Khulna University, Bangladesh
E-mail: [email protected]
Received date: July 10, 2013; Accepted date: September 10, 2013; Published date: September 16, 2013
Citation: Sultana S (2013) In vitro Evaluation of Some Selected Fungicides against Pestalotia palmarum (Cooke.) Causal Agent of Grey Leaf Spot of Coconut. J Plant Pathol Microb 4:197 doi: 10.4172/2157-7471.1000197
Copyright: © 2013 Sultana S. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
To evaluate the efficacy of some selected contact, systemic and mixed fungicides against Pestalotia palmarum causal organism of grey leaf spot of coconut. Naturally infected leaf sample of coconut having characteristic symptoms of grey leaf spot diseases was collected from Khulna University campus. The pathogen was isolated, purified and identified as P. palmarum. The fungicides were tested against P. palmarum at 1000, 2000 and 3000 ppm concentrations. All fungicides at all concentrations inhibited the growth of the pathogen and their effect differed significantly (≤ 0.01). No growth was observed in Hexaconazol, Propiconazol, Hepridion and Carbendazim at any concentrations. Mancozeb at all concentrations and Mancozeb+Metalexil at 2000 and 3000 ppm inhibited more than 70%. Mancozeb+Metalexil 1000 ppm inhibited the lowest (60.49%).