Wang Meizhi, Li Hongmei, Bukero Abdul Aziz, Shu Jinping, Zhuo Fuyan, Liu Linyi, Zhang Aihuan
MARA-CABI Joint Laboratory for Bio-Safety, Institute of Plant Protection, Chinese Academy of Agricultural Science, Beijing 100193, China.
College of Bioscience and Resource Environment, Beijing University of Agriculture, Beijing 102206, China.
Biology (Basel). 2023 Oct 27;12(11):1377. doi: 10.3390/biology12111377.
The yellow-spined bamboo locust (YSBL), Tsai, has historically had a significant impact on different bamboo varieties in East Asia and Southeast Asia. Since 2014, there have been many outbreaks of YSBL populations in Laos, and YSBLs subsequently invaded Southwest China in 2020 and 2023. However, there was limited information about the damage to staple crops. Life table parameters and fitness parameters were assessed using wheat, rice, waxy maize, and sweet maize under three different temperatures (25 °C, 30 °C, and 35 °C) in the laboratory. The results indicated that the YSBLs feeding on wheat seedlings displayed a significantly higher survival rate, a shorter developmental time, and a higher adult emergence rate compared to YSBLs feeding on the other host species at 30 °C. The developmental durations of 1st and 3rd instar YSBLs on wheat (1st: 8.21 ± 0.35 d; 3rd: 6.32 ± 0.34 d) and rice (1st: 7.19 ± 0.23 d; 3rd: 9.00 ± 0.66 d) were significantly shorter than those of 1st and 3rd instar YSBLs on waxy maize (1st: 13.62 ± 1.22 d; 3rd: 13.67 ± 6.33 d) and sweet maize (1st: 16.00 ± 1.79 d; 3rd: 18.00 ± 3.49 d) at 30 °C. The body lengths of male and female YSBLs on wheat (male: 29.52 ± 0.40 mm, female: 34.97 ± 0.45 mm) and rice (male: 28.85 ± 0.68 mm, female: 34.66 ± 0.35 mm) were significantly longer than those observed when they were fed on sweet maize (male: 25.64 ± 1.60 mm, female: 21.93 ± 6.89 mm). There were only male adults obtained on waxy maize. The phenotypic characteristics of the YSBLs feeding on rice seedlings were very close to those of the YSBLs feeding on wheat seedlings. A relatively slower decline was observed in the survival rates of YSBL nymphs on wheat and rice compared to those on waxy maize and sweet maize at 25 °C, 30 °C, and 35 °C. In short, this study implied that YSBLs prefer wheat and rice. This study is the first report of direct damage caused by the YSBL to wheat in the laboratory, and its results could be useful in improving our understanding of the host preference of the YSBL and providing strategies for the management of this pest in field crops.
黄脊竹蝗（Ceracris kiangsu Tsai）历史上对东亚和东南亚的不同竹种造成了重大影响。自2014年以来，老挝多次爆发黄脊竹蝗虫灾，随后在2020年和2023年黄脊竹蝗入侵了中国西南部。然而，关于其对主要农作物损害的信息有限。在实验室中，于三种不同温度（25℃、30℃和35℃）下，以小麦、水稻、糯玉米和甜玉米为食，评估了黄脊竹蝗的生命表参数和适合度参数。结果表明，在30℃时，取食小麦幼苗的黄脊竹蝗相比取食其他寄主植物的黄脊竹蝗，存活率显著更高，发育时间更短，成虫羽化率更高。在30℃时，1龄和3龄黄脊竹蝗在小麦（1龄：8.21±0.35天；3龄：6.32±0.34天）和水稻（1龄：7.19±0.23天；3龄：9.00±0.66天）上的发育历期显著短于在糯玉米（1龄：13.62±1.22天；3龄：13.67±6.33天）和甜玉米（1龄：16.00±1.79天；3龄：18.00±3.49天）上的发育历期。取食小麦（雄虫：29.52±0.40毫米，雌虫：34.97±0.45毫米）和水稻（雄虫：28.85±0.68毫米，雌虫：34.66±0.35毫米）的黄脊竹蝗雌雄虫体长显著长于取食甜玉米（雄虫：25.64±1.60毫米，雌虫：21.93±6.89毫米）时观察到的体长。在糯玉米上仅获得了雄成虫。取食水稻幼苗的黄脊竹蝗的表型特征与取食小麦幼苗的黄脊竹蝗非常接近。在25℃、30℃和35℃时，与取食糯玉米和甜玉米的黄脊竹蝗若虫相比，取食小麦和水稻的黄脊竹蝗若虫存活率下降相对较慢。简而言之，本研究表明黄脊竹蝗更喜欢小麦和水稻。本研究是关于黄脊竹蝗在实验室中对小麦造成直接损害的首次报道，其结果有助于增进我们对黄脊竹蝗寄主偏好的理解，并为田间作物上这种害虫的管理提供策略。
