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This book describes the Insecticidal activity of essential oils extracted from different citrus varieties, sweet orange, kinnow, bitter orange and grape fruit, at three different concentrations (3%, 6%,12%) was evaluated in the Grain Research Training and Storage Management Laboratory at Department of Entomology, University of Agriculture Faisalabad Pakistan.The Objective of the study was to evalute the insecticidal activity of citrus oils against percent mortality and population buildup of Lesser Grain Borer.The conclusions were withdrawn from the obtained results, maximum mortality was recorded at high concentration.Maximum population build up was recorded in controlled treatment(36.67%), while in treated sample(5.883%). The percent mortality increases with the increased in concentration and the concentration of oils have significant effect on the mortality of Lesser Grain Borer. Population buildup value was found maximum in control treatment than treated but increased in concentration population buildup value was decreased. The results also show that Multan strain are highly susceptible than Vehari strain of Lesser Grain Borer.

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