Development, characterization and efficacy evaluation of biochemical fungicidal formulations for postharvest control of anthracnose (colletotrichum gloeosporioides penz) disease in mango.

The objectives of the study are to develop and characterize formulations with volatile molecules
in an emulsifiable concentrate form, for their antimicrobial properties and to evaluate their
efficacies against C. gloeosporioides Penz., to control anthracnose in mangoes after harvest.
Results showed EC39 and EC40 among formulations were characterized for their excellent
emulsification properties, the droplet size of 192.34 ±0.48 nm and 227.4±0.71 nm and Zeta
potential of -52.5±2.76 mv and -48.84±2.62 mv, respectively, with better storage stability at
10±20C and RH 80 ±5%. In vitro assay, 100% inhibition of visual spore germination by 0.15%
and 0.2% MIC value for EC39 and EC40, respectively Studies on the efficacy of their fungicide
properties also indicated the IC50 value of 0.161% and 0.162% for EC39 and EC40 respectively
for mycelial growth inhibition. In vivo testing too, EC39 and EC40 effectively controlled
anthracnose incidence in mango in a dosage-dependent manner.