01677nas a2200157   4500008004100000020001400041245010900055210006900164260000900233300001200242490000700254520109200261653002201353100002101375856012301396       2011                        eng d  a0171-817700aThe Influence of Herb Species on Population Processes of Sitophilus oryzae L (Coleoptera: Curculionidae)0 aInfluence of Herb Species on Population Processes of Sitophilus   c2011  a273-2800 v333 aThe objective of this study was to investigate the effect of powdered herbs: sage Salvia officinalis L, wormwood Artemisia absinthium L. lavender Lavandula officinalis L, and peppermint Mentha piperita L on the population of the rice weevil Sitophilus oryzae (Linnaeus 1763). The population number, mortality and the sex structure of rice weevil populations were studied. The powdered herb preparations were applied at two concentrations: 1.2% and 0.5%. The experiments were conducted in the laboratory at 28 [degree]C and 60 [plus or minus] 5% RH. The effect of the plant preparations depended on their concentrations. The complete inhibition of the development of S oryzae occurred at the concentration of 1.2% of the powdered material. An inhibition effect on the rice weevil populations was also demonstrated for wormwood, sage, and the lavender at a 0.5% concentration. The chemical compounds contained in these herbs result in a higher mortality among females. The wormwood, sage, and the lavender may possibly be applied to protect stored products against infestation by S oryzae.10aSitophilus oryzae1 aKlys, Malgorzata  uhttps://weevil.myspecies.info/influence-herb-species-population-processes-sitophilus-oryzae-l-coleoptera-curculionidae