B. M. MEENA, R. SWAMINATHAN, R. NAGAR AND A. MEENA

A field experiment study the impact of farmscaping on the seasonal abundance of major sap sucking insect pests of cowpea was carried out during the year 2012 at instructional farm, Rajasthan College of Agriculture, Udaipur. The experiment was conducted in two sets, one comprising treatment with plant oils against insect pests, termed protected condition, and the other without the use of any plant oil, termed natural condition. The major sap sucking insect pests were viz., Aphis craccivora,Koch, Empoasca kerri Pruthi,Megalurothrips sp., Bemisia tabaci Gennadius and Riptortus pedestris Fabricius. Under both untreated and treated conductions the mean density for all the major sap insect pests was relatively more in sole cowpea than in the other farmscape treatments and minimum when cowpea was famscaped with marigold (cowpea + marigold). The mean atmospheric temperature had a  significant positive correlation with the population of aphid and whitefly while a significant negative correlation with the population of jassid. The mean relative humidity and total rainfall showed significant positive correlation with the opulations of pod bug.

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