Phomablightdisease is a fungal infection caused by various Phoma species. Infections by this fungus are most common in wet and cool conditions. They symptoms of a phomablight infection are visible only on older leaves.Phomablight is a new disease, but now it is gaining economic importance in mango producing areas. diseases. Pathogenic members of Phoma sensu lato species attack crop plants with. symptoms ranging from leaf blight to root rot, and even wilting of the plant. Phomablight is a major disease of soybean in Kashmir and has a potential to cause 0.894 units decrease in soybean yield with every unit increase in its intensity. Abstract. This article had set the objective to consolidate the literature regarding phomablight and also to find out the trends related to the same. Plant Disease is the most active journal... Phomablight Gavande, V.H. (2005). Effect of nutrient management is a major disease of soybean in Kashmir and has a potential treatments on growth and yield of soybean. Recently, phomablightdisease is causing a huge loss in potato tuber production. Plant pathologists have assigned numbers to represent the intensities of diseases based on eye estimated... Phomablight of fir and Douglas-fir seedlings in a California nursery. Plant Disease. 69: 773-775. Phomablight is caused by the fungus Phoma exigua var exigua.Both of these diseases are very difficult to control. Try to avoid overhead watering or excessive watering of vinca beds. Phomablight on periwinkle (Vinca spp).Nancy Gregory, University of Delaware, Bugwood.org. This disease is usually of minor importance, showing up late in the season on the lower leaves.