Field efficacy of natural and indigenous products on sucking pests of Sesame.

Sesame, Sesamum indicum Linn. is a major oilseed crop of India, including Bundelkhand Zone of Madhya Pradesh. One of the major constraints in its production is damage caused by insect pests, particularly sucking which suck the cell sap from leaves, flower and pods. Efficacy of some indigenous neem products, insecticides and their admixtures against three sucking pests (jassid, mired bug and white fly) of sesame were tested at Research Farm of College of Agriculture, Tikamgarh (Madhya Pradesh) during kharif 2004-2006. The results revealed that incidence of nymph and adult population of sucking pests, viz. jassid, Orosius albicinctus (Distant), mirid bug, Nesidiocoris tenuis (Rent.) and whitefly, Bemisia tabaci (Gennadius) was decreased significantly by natural and indigenous products, viz. Neem oil (NO), Neem seed kernel extract (NSKE), Neem leaf extract (NLE), Garlic bud + Red pepper extract (GB + RPE), Cow urine (CU) and Cow butter milk (CBM) as compared to untreated. However, insecticide Endosulfan was more effective than these products. The efficacy of all the above products were in the following order: Endosulfan > NSKE > NO > NLE > GB + RPE > CU > CBM. Grain yield was significantly higher in all the treatments as compared to untreated but was maximum with Endosulfan 0.07% (622 kg/ha) followed by NSKE-30 ml/l (605 kg/ha). Whereas, net profit and incremental cost benefit ratio (ICBR) was maximum with NSKE followed by NO in net profit and ICBR in NLE.