Does the efficacy of a fungicide varies with company brand name and its implication on plant disease control

Fungicides are major inputs in management of plant diseases in cultivated crop plants. Various pesticide companies manufacture the same technical fungicide with different brand name. However, the same technical fungicide of different companies has same efficacy on a particular plant pathogen/disease or otherwise, is not yet investigated. The aim of the present investigation, was to assess the variation in efficacy of seed protectant fungicides viz. Carbendazim, Captan, Metalaxyl+Mancozeb and Copper oxychloride of different companies in in vitro against chickpea (Cicer arietinum L.) wilt pathogen Fusarium oxysporum f.sp.ciceri (Padwick)Matuo & Sato, on elimination of seed borne microflora on chickpea seed and in in vivo against chickpea wilt disease. Under in vitro test, the fungicide carbendazim of Dhanuka, Zuari and BASF company was equally effective at various concentrations. The fungicide Metalxyl + Mancobez of UPL, Syngenta and Indofil at 0.05% concentration varied in its efficacy against the fungal pathogen. The fungicide Copper oxychloride of Indofil was most effective at 0 .1 %, followed by Rallis at 0.15 % while it was ineffective even at 0.2 % concentration for Zuari company. As a seed dresser fungicide, Metalxyl + Mancozeb of Syngenta, Indofil and UPL company at 1 % concentration eliminated the seed borne microflora on 100 %, 68.75 % and 43.75 % Cicer arietinum L. seeds respectively. The fungicide Carbendazim of Dhanuka, Zuari and BASF at 2 % concentration was equally effective as seed dresser. However, at 1 % concentration the fungicide carbendazim of Dhanuka company was more effective than that of other two companies. The fungicide Captan of Zuari and Rallis company was more effective than that of Indofil and Makthesian company at 2% concentration and thus varied in its efficacy as seed dresser among these companies. Under in vivo test, the results obtained for the control of chickpea wilt were similar to seed dresser fungicide Carbendazim and Captan, but the fungicide Metalxyl + Mancozeb was not at all effective as seed treatment to control the wilt disease. In conclusion, there was variation in the efficacy of the same fungicide of different companies in the inhibition of fungal growth of Fusarium oxysporum f.sp. ciceri (Padwick)Matuo & Sato,and the wilt disease caused by it. Therefore, the answer to the question does the efficacy of a fungicide varies with company brand name is in affirmation and have its implication on plant disease control.