Jung Jong-Kook, Lee Chayoung, Jang Beomjun, Nam Youngwoo
Department of Forest Environment Protection, Kangwon National University, Chuncheon 24341, Republic of Korea.
Forest Insect Pests and Diseases Division, National Institute of Forest Science, Seoul 02455, Republic of Korea.
Insects. 2025 Apr 23;16(5):444. doi: 10.3390/insects16050444.
To understand the spread of the pine wood nematode (Steiner and Buhrer, 1934; Nickle, 1970) and identify infected trees, the dispersal ability of insects was examined. In this study, the effects of sex, adult age, and morphological traits on the flight performance (such as flight distance, time, and speed) of (Hope, 1843) were investigated using flight mills. Over a period of 8 weeks, a total of 42 newly emerged adult beetles were tethered to flight mills once a week. Flight distance and time were recorded for 2 h during each session. The total flight distance of individuals that flew more than 100 m during each session was calculated. The results showed that females flew an average of 6.65 km, for 59.6 min, while males flew an average of 9.89 km, for 85.8 min. In a single flight experimental session, both sexes could fly up to approximately 2 km and were found to fly at an average speed of 1.9 m s. In our principal component analysis (PCA), the first and second principal components were found to be highly correlated with the sex, morphological traits, and flight performances of . This study demonstrates that the flight ability of varies significantly according to body size and sex, which is fundamental and crucial for understanding the dispersal patterns of pine wilt disease.
为了解松材线虫（施泰纳和布勒，1934年；尼克，1970年）的传播情况并识别受感染树木，对昆虫的扩散能力进行了研究。在本研究中，使用飞行磨对松墨天牛（霍普，1843年）的性别、成虫年龄和形态特征对飞行性能（如飞行距离、时间和速度）的影响进行了调查。在8周的时间里，每周将总共42只新羽化的成虫拴在飞行磨上一次。每次试验记录2小时的飞行距离和时间。计算每次试验中飞行超过100米的个体的总飞行距离。结果表明，雌性平均飞行6.65千米，时长59.6分钟，而雄性平均飞行9.89千米，时长85.8分钟。在单次飞行试验中，两性都能飞行约2千米，平均飞行速度为1.9米/秒。在我们的主成分分析（PCA）中，发现第一和第二主成分与松墨天牛的性别、形态特征和飞行性能高度相关。本研究表明，松墨天牛的飞行能力因体型和性别而异，这对于理解松材线虫病传播模式至关重要。
