Rhizopus rot progression is temperature related, with optimum temperatures around 80°F. Rhizopus head rot is directly linked to physical injury of heads, and as a consequence, anything that can be done to minimize head damage is important. * Symptoms A common fungal disease called Rhizopus Rot attacks jackfruit flowers and fruit. 1. When warm, humid, wet weather coincides with the flowering and fruiting season, rhizopus rot can cause total loss of fruit in jackfruit trees. • Two rhizobacteria inhibit pathogen growth remarkably both in vitro and in vivo.. First report of post harvest control of the rot by food grade lactic acid bacteria. This is as a result of Rhizopus rot which is common in jackfruit. Most jackfruit are bagged in order to reduce attack from insects, but ideally these bags should be porous and should not allow moisture to build up next to the fruit as such conditions encourage the development of the fungal inoculums. Rhizopus fruit rot of jackfruit: (A) infected fruit; (B) infected male flower. The disease is more likely to occur in high-rainfall areas or during and after stormy periods. Rhizopus stolonifer causing rot of jackfruit have been isolated and identified.. Rhizopus rot is a common fungal disease of jackfruit flowers and fruit. Managing Rhizopus Rot of Jackfruit. [Credits: pestnet.org; Flickr.com] Spores are spread by wind and insects, and infection occurs only through wounds in ripe fruit. Rhizopus Head Rot Management. Species of Rhizopus survive on debris in the soil when host plants are not present. Rhizopus dc.subject jackfruits dc.subject fungal diseases of plants dc.subject Hawaii dc.subject disease and pest management dc.title Rhizopus Rot of Jackfruit dc.type Article dc.type.dcmi Text Appears in Collections: Plant Disease, 1997 - present Main Disease of the Jackfruit Rhizopus rot Gummosis disease Pink disease 5 6. Introduction • Jackfruit is a common fruit in our country. The jackfruit also known as jack tree, jakfruit, or sometimes simply jack or jak. Ideally, management of jackfruit rot needs to start in the orchard. It is recommended that in order to save your jackfruit, applications of a broad spectrum copper fungicide spray should be made, according to label directions, shortly after fruit set. Since this fungus mainly attacks fruit after harvest, the last fungicide spray prior to harvest should be one that includes Rhizopus rot on the label for stone fruit. 30 R. Ghosh et al./Biological Control 83 (2015) 29–36 Bavistin and Blytone were used at different concentrations. The pathogen can produce the enzyme pectinase in appreciable amount. At ideal temperatures, the fungus will move rapidly through the fruit. Its scientific name is Artocarpus heterophyllus. 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