International Journal of Plant Protection

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In vitro Evaluation of Fungicides and Organic Extracts against Macrophomina phaseolina (Tassi) Goid. Isolated from Pigeonpea [Cajanus cajan (l.) Millsp.]


Affiliations
1 Department of Plant Pathology, College of Agriculture, Navsari Agricultural University,Campus Bharuch, Maktampur (Gujarat), India
     

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Ten fungicides at three different concentrations were screened in vitro by poisoned food technique for evaluating their efficacy against M. phaseolina, in which mancozeb (dithane M-45, 75% WP), carbendanzim (bavistin, 50% WP), carbendanzim + mancozeb (sixer, 75%WP) and metalexyl 18% + mancozeb 64% (ridomil, 75% WP) were proved to be highly toxic to the growth of the M. phaseolina. Eight different organic extracts were tested against M. phaseolina by poisoned food technique with different concentration in vitro. All the extracts were inhibitory to M. phaseolina significantly lower mycelium growth was recorded in Neem cake followed by coconut. Next best were FYM, mustard cake, sesamum cake and vermicompost. While lowest inhibition of mycelial growth of M. phaseolina was observed in groundnut cake and castor cake.

Keywords

Fungicides, Pigeonpea, Organic Extracts.
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  • In vitro Evaluation of Fungicides and Organic Extracts against Macrophomina phaseolina (Tassi) Goid. Isolated from Pigeonpea [Cajanus cajan (l.) Millsp.]

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Authors

D. M. Pathak
Department of Plant Pathology, College of Agriculture, Navsari Agricultural University,Campus Bharuch, Maktampur (Gujarat), India
R. R. Patel
Department of Plant Pathology, College of Agriculture, Navsari Agricultural University,Campus Bharuch, Maktampur (Gujarat), India

Abstract


Ten fungicides at three different concentrations were screened in vitro by poisoned food technique for evaluating their efficacy against M. phaseolina, in which mancozeb (dithane M-45, 75% WP), carbendanzim (bavistin, 50% WP), carbendanzim + mancozeb (sixer, 75%WP) and metalexyl 18% + mancozeb 64% (ridomil, 75% WP) were proved to be highly toxic to the growth of the M. phaseolina. Eight different organic extracts were tested against M. phaseolina by poisoned food technique with different concentration in vitro. All the extracts were inhibitory to M. phaseolina significantly lower mycelium growth was recorded in Neem cake followed by coconut. Next best were FYM, mustard cake, sesamum cake and vermicompost. While lowest inhibition of mycelial growth of M. phaseolina was observed in groundnut cake and castor cake.

Keywords


Fungicides, Pigeonpea, Organic Extracts.

References