Journal of Plant Disease Sciences

An experiment was carried out to know the effect of date of sowing and correlation of weather parameters on the incidence of leaf spot of Korphad (Aloe vera). The initiation of disease was noted during 29^th met week with an intensity of 12.80%. The intensity reached its peak (56.67%) during 48^th met week, while intensity declined to 45.18 per cent during 50^th met week. The correlation of weather parameters showed that minimum temperature and relative humidity evening exhibit negative and significant correlation with disease at both levels of significance. Botanical study revealed that Ipomea carnea restricted the mycelial growth of Phoma sp. and maximum per cent growth inhibition was noticed (67.45%) and (72.51%) at 5% and 10% concentration respectively. In Fusarium semitacteum the effect of botanicals revealed that at 5% concentration maximum per cent growth inhibition was achieved due to Ipomea carnea leaf extracts (66.21%) followed by Azadirachta indica (64.60). At 10% concentration Prosofis juliflora was more effective in controlling the growth of the fungi and the per cent growth inhibition was 70.43% followed by Azadirachta indica(67.46%) and Ipomea carnea (66.21%) respectively.