Evaluation of plant-derived commercial products for controlling brown spot of rice

Field experiments were carried out during wet seasons of 2003 and 2004 under irrigated upland ecosystem to evaluate the efficacy of plant-derived commercial products along with the standard check fungicides for controlling the brown spot of rice. Standard fungicides were found to be significantly superior to plantderived commercial products in reducing the disease severity and increasing productivity during both the years. The plant-derived commercial products were found to be economical, feasible and eco-friendly. The
results revealed that Biotos @ 5 ml l-1 of water was found significantly effective in controlling the brown spot (21.44%). It was further observed that application of Achook @ 5 ml l-1 of water gave better results in increasing the seed weight and grain yield by 17.45% and 29.97% , respectively over control.