Abstract
The characteristic of Mikeblock granule was studied in the laboratory and field trials. Regarding Mikeblock and the active ingredient dinotefuran, repellency and transfer efficacy tests were conducted in the laboratory. The results of these tests showed that Mikeblock was non-repellent termiticide and had the equal transfer efficacy compared to other termiticides. Field efficacy test was conducted to evaluate the effective term of Mikeblock granule and also the concentrations of dinotefuran in granule and soil were measured at three years after the beginning of the test. These results showed that the effective term of Mikeblock granule was more than three years.