There was analyzed the effect of selected essential oils (orange, lemon, vanilla, linden blossom, thyme, geranium and tea oils) on the development and fertility of the most dangerous cereal grain storage pest, grain weevil. Based on the results obtained, it was observed that a strong effect limiting the population of grain weevil was found for vanilla and orange oils. In the experiment combinations which involved essential oils, there was observed a prolonged pest
development cycle and a higher mortality of maternal individuals than in the other tests. On the other hand, the lowest
fecundity rate was recorded in the combination in which thyme oil was tested.
