2022, Vol. 3, Issue 1, Part A
Comparative efficacy of copper (I) oxide matalaxyl fungicide and plant extracts in the management of mango anthracnose caused by colletotrichum gloeosporioides (Penz) in Nigeria
Author(s): MJ Falade
Abstract: Mango anthracnose caused by Colletotrichum gloeosporioides is responsible for about 60% yield loss of mango in Nigeria. Based on the above, laboratory studies were conducted to evaluate the effect of hot water leaf extracts of African egg plants (Solanum macrocarpon), Jimson weed (Datura stramonium) and African scent leaf (Ocimum gratissimum) at 20, 40 and 60% concentrations and copper (1) oxide metalaxyl based synthetic fungicide on the growth of Colletotrichum gloeosporioides. The extracts were applied in-situ to determine their efficacy of control. The result of the studies shows statistically significant (P<0.05) variation in C. gloesporioides growth depending on the extracts and concentrations. S. macrocarpon at 60% concentration was the most effective in reducing the growth of the fungus and incidence of the disease on the field. The effects of the 60% S. macrocarpon leaf extract compared favourably with the copper (1) oxide synthetic fungicide. The growth rate of C. gloesporioides treated with 60% S. macrocarpon and Copper 1 oxide Metalaxyl were respectively 2.91 and 2.81mmday-¹. Similarly, diseases incidence in plots treated with copper (1) metalaxyl (13.4%) compared favourably with that of S. macrocarpon (14.2%) when extracts was applied two days before inoculation at the highest concentration (60%) of the leaf extracts. The study concluded that the active compound in the leaf extracts can be developed into synthetic fungicide for the management of Mango anthracnose.
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How to cite this article:
MJ Falade. Comparative efficacy of copper (I) oxide matalaxyl fungicide and plant extracts in the management of mango anthracnose caused by colletotrichum gloeosporioides (Penz) in Nigeria. J Adv Microbiol Res 2022;3(1):07-11.