The populations of Rhyzopertha dominica, a dangerous pest in stored grains were investigated. This laboratory study assumed the hypothesis that the introduction of powdered leaves of Salvia officinalis L. and Artemisia absinthium L. containing feeding inhibitors into grain may delay the development and therefore reduce population size of R. dominica. These herbs were powdered and added at 0.5 g of herb per 40 g wheat. The research was conducted in optimum conditions of temperature and humidity (28ºC and relative humidity 60%). The insects used in the experiment were initially obtained from mature individuals of uniform age and were bred in glass containers with base area 28 cm² covered with gauze. The experiments were continued for 310 days and the herb supplements were renewed each month. The results of the study show that the introduction of chemical substances contained in the powdered leaves of S. officinalis and A. absinthium into an optimal substrate (wheat) infested with R. dominica decreases its population size. These substances have properties that inhibit the feeding of this insect species.
JavaScript jest wyłączony w Twojej przeglądarce internetowej. Włącz go, a następnie odśwież stronę, aby móc w pełni z niej korzystać.