Effect of different wheat cultivars on population of Rhyzopertha dominica (Col: Bostrychidae)

Lesser grain borer, Rhyzopertha dominica F. is one the most important pests in Golestan province. One of the method to reduce the pest damage is using resistant cultivars. In this experiment the effect of eight cultivars and lines of wheat such as Kouhdasht, Zagros, Morvarid, Darya, Pastor, Line 17 and N-80-19, on number of live and dead adults and populatioin growth rate of lesser grain borer was studied. One hundred gram of wheat was placed in a crystal container and 10 adults were put on each container and kept under stored condition. Sampling was done every each 7 to 10 days intervals. Data were analyzied using SAS program in split-plot in time design. Analysis of variance showed that number of a live adults and population growth rate in wheat cultivars were significantly different (p