The movement, survival, and weight gain of Helicoverpa armigera Hübner (Lepidoptera: Noctuidae) first instar larvae were studied on CB9, CB10 and SR05 cotton varieties under field conditions. The neonate H. armigera were released on the cotton varieties at the squaring stage of the plants and, after a period of 72 hours, the survival, weight gain, and final location of the larvae were observed. While the different cotton varieties had no effect on the survival and weight gain of the larvae, the release locations on the cotton varieties had a significant influence on the larval survival and weight gain. The larvae fed small squares of the cotton varieties were significantly heavier and showed a higher mortality than the larvae fed leaflets and mature leaves. For the cotton varieties in this study, the larvae released on leaflets showed a significantly higher rate of recovery compared to the larvae released on mature leaves and squares. This study also found that that the larvae on leaflets did not move up or downward unlike the larvae on mature leaves and squares. This information on the foraging behavior of larvae on cotton varieties will assist researchers to interpret field data and thereby help with the development of pest management decisions.

The thermal death kinetics of the Black timber bark beetle, Xylosandrus germanus, was investigated to develop a heat treatment for control of infested wood packing materials used to export goods. To determine the feasibility of microwave irradiation as an alternative control method, laboratory experiments irradiating wooden blocks of Douglas fir (200×200×250mm), which were artificially infested with adults, with 2.45 GHz of microwave energy. All (100%) Ambrosia beetle adults were killed by both hot water treatments and microwave irradiation at 52˚C and 58˚C, respectively. Probit analyses estimated the internal wood temperature required to produce Probit (0.99) efficacy to be 64.7˚C (95% CI 62.4-69.9˚C) at one minute after microwave treatment.

덕유산 지역을 대상으로 길쭉먼지벌레류 4종에 대한 고도별, 계절별 분포 및 이동상황을 조사해본 결과 P. ishikawai 가 가장 많은 밀도를 나타내었다. 대분분 종들에서 6월은 저고도에서 많은 빈도를 나타내었으며, 반대로 8월에는 높은 고도에서 많이 채집되는 경향을 보였다. 그리고 9월에서는 6월과 마찬가지로 저고도에서 다소 많은 양이 채집되었다. 조사된 길쭉먼지벌레류 4종중에서 P. audax가 전형적인 곤충의 계절별, 고도별 이동 경향을 나타내었다.