Effect of the inclusion of Desogerme S.P. Vegetals in the packline hot-water bath on postharvest diseases in mango.
Oosthuyse S. A.
Author Affiliation: HortResearch S.A., P.O. Box 3849, Tzaneen 0850, South Africa.
Yearbook - South African Mango Growers' Association 18 : 50-51
Abstract : The effect of the inclusion of Desogerme (a water sanitising liquid) in the mango-packline's hot-water bath on the postharvest diseases occurring in mango (anthracnose caused by Glomerella cingulata, and soft-brown rot caused by Nattrassia mangiferae) was evaluated. Two identical experiments were performed, one using Heidi mangoes and the other Kent mangoes. Packline treatment was performed on the day of harvest. Desogerme was excluded or 5, 10 or 15 ml of Desogerme per 100 l of water was added. The fruits were evaluated after 32 days of cool-storage at 11.5°C and ripening at 20°. There was no apparent effect on the manifestation of anthracnose disease in Heidi or Kent. The incidence of soft-brown rot was increased slightly by Desogerme in both cultivars, the increase showing a positive relationship with the increase in the amount of Desogerme added. In light of the results, the inclusion of Desogerme S.P. Vegetals in the hot-water bath is not advised.