In vitro screening of systemic fungicides against phomopsis azadirachtae, the incitant of die-back of neem

Girish, K. and Bhat, Shankara S. and Raveesha, K. (2009) In vitro screening of systemic fungicides against phomopsis azadirachtae, the incitant of die-back of neem. Archives of Phytopathology and Plant Protection, 42 (3). pp. 256-264.

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Official URL: https://doi.org/10.1080/03235400601036646

Abstract

Phomopsis azadirachtae Sateesh, Bhat & Devaki is the causal organism of die-back of neem (Azadirachta indica A.Juss.) which is, presently, a major crippling disease of neem in India. Six systemic fungicides such as Bavistin (carbendazim), Contaf (hexaconazole), Beam (tricyclazole), Fuji-one (isoprothiolane) Roko (thiophanate methyl) and Downymil (metalaxyl) were evaluated against P. azadirachtae under in vitro conditions. Colony diameter, mycelial dry weight, pycnidial formation and the germ tube length of the pathogen were the parameters studied. The results indicated that carbendazim was the most effective in inhibiting the growth followed by thiophanate methyl. Among the different concentrations tested, carbendazim at 0.25 ppm and thiophanate methyl at 0.75 ppm were optimum for controlling the growth of the pathogen. Both these fungicides can be utilized for the control of die-back of neem.

Item Type: Article
Uncontrolled Keywords: Phomopsis azadirachtae and die-back and neem and systemic fungicides and carbendazim and thiophanate methyl
Subjects: B Life Science > Microbiology
Divisions: Department of > Microbiology
Depositing User: Shrirekha N
Date Deposited: 12 Sep 2019 07:34
Last Modified: 12 Sep 2019 07:34
URI: http://eprints.uni-mysore.ac.in/id/eprint/8074

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