Evaluation of fungicides against leaf spot of turmeric caused by Colletotrichum capcisi

Abstract

Fungicides are the common tool for the management of leaf spot of turmeric crop caused by Colletotrichum capsici (syd.) Buttler and Bisby. The efficacy of six (6) fungicides viz., blitox-50, carbendazim, carbendazim 12 per cent + mancozeb 63 per cent, captan, mancozeb and matalaxyl were evaluated at minimum dose against the pathogen. Amongst the fungicides, carbendazim 12 per cent + mancozeb 63 per cent @ 0.2 per cent was found significantly effective in inhibiting the mycelial growth (4.47 cm) of the pathogen. Effect of carbendazim in inhibiting the mycelial growth of C. capsici was found next (2.90 cm) to carbendazim 12 per cent + mancozeb 63 per cent. Mancozeb (1.80 cm) and captan (1.62 cm) also showed effective results as compared to matalaxyl (1.0 cm).

Potential of fungicides, botanicals and biocontrol agents to induce physio-biochemical tolerance onCurcuma longaimpaired byColletotrichum gloeosporioides

“…Thereafter, the pathogenicity of C. gloeosporioides on turmeric plants were performed at different inoculum loads under polyhouse condition. The present findings support those ofTapia-Tussell et al (2008);Cai et al (2009);; Pasuvaraji et al(2013);Boruah et al (2015). While pathogenicity elicits quick and continuous changes in genes regulation in response to physio-biochemical functions, the physio-biochemical traits play a vital role in shaping the plant responses to environment.…”