This study is to investigate the effect of the pet insect therapy. The pet insect program was provided with 7session from May 2014 to July 2014. The measures used in this study includes self-esteem scale, social competence scale and stress scale. For analyses, t-tests with pre-test and post-test scores of experimental group and control group by SPSS 18.0. Regarding the results insect group who participated in the pet insect program showed higher mean scores in Self-Esteem scale, Social Competence Scale and stress Scale than those of control group. Mean score differences were statistically significant in at least p<0.01 level. The study results means that the pet insect program had effects on the improvement of Self-Esteem, Social Competence and reduce stress for elementary school children.

In order to improve mass rearing methods of hornfaced bee, Osmia cornifrons, in different field condition, a series of studies were conducted in apple orchard in Geochang province, eco-park in Suwon and botanical park in Yongin. 1,000 individuals and 2,000 individuals of Osmia cornifrons were released apple orchard and eco-park and botanical park respectively. Nesting rate of Osmia conifrons was most effective in case of releasing in botanical park in Yongin with 38.2% and lowest in eco-park in Suwon with 21.7%. And also number of cocoons nested in bamboo tube traps was highest in botanical park in Yongin with 3,494 individuals. Sex ratio in 3 different areas was also most effective with 58:42 in botanical park, 50:50 in apple orchard and lowest with 43:57 in eco-park. Nesting activity was shown starting point in 20th day, peak point in 38th day and ending point in 46th day after releasing of adults. This result shows nesting efficacy in botanical park designed with various species of plant sources pollinating insect, Osmia cornifrons, to increase the multiplication rate in field condition is more effective than other areas. General type of nest shows same tendency in efficacy of nesting rate compared with specific type of nest designed with dark thick cover in apple orchard. But it's result needs some further examination in same condition.