Determination of Proper Application Timing and Frequency for Management of Tomato Leaf Mold Disease by Commercially Available Microbial Preparations
| Autor: | Beom Ryong Kang, Sug-Ju Ko, Do-Ik Kim, Duck-Soo Choi, Seon-Gon Kim |
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| Jazyk: | English<br />Korean |
| Rok vydání: | 2011 |
| Předmět: | |
| Zdroj: | Research in Plant Disease, Vol 17, Iss 2, Pp 142-147 (2011) |
| Druh dokumentu: | article |
| ISSN: | 1598-2262 2233-9191 |
| DOI: | 10.5423/RPD.2011.17.2.142 |
| Popis: | In order to develop a environmentally friendly control protocol for managing tomato leaf mold disease in the field, we employed bacteria- and fungi-based commercially available microbial preparations. The field experiment was conducted from April to July in 2010. Average incidence rates tomato leaf mold caused by Fulvia fulva were 13.1% at the two plastic houses located in Jangsung, Jeonnam area. Initially 11 microbial preparations were tested for antifungal activity against F. fulva in vitro. Among them, 7 selected preparations showed to be inhibited the mycelial growth of the fungal pathogen over 50%. Four microbes suppressed disease incidence as much 50% under greenhouse condition. Eventually in the field two microbial products including Bacillus subtilis GB-0365 and B. subtilis KB-401 respectively were showed control value up to 71.8% for four times sprays from 20 days to 70 days after transplanting. Furthermore, the control value of three times spray program demonstrated 79.3%. Efficacy of the three and four spray programs was more effective than that of non-spray control treatment. Our results indicated that adjustment of application method of commercially available microbial preparation could be used to control a target plant disease as an effective and efficient crop protection system for organic farming. |
| Databáze: | Directory of Open Access Journals |
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