Wang Wenwen, He Pengyang, Zhang Yiyang, Liu Tongxian, Jing Xiangfeng, Zhang Shize
State Key Laboratory of Crop Stress Biology for Arid Areas, Northwest A&F University, Yangling 712100, China.
Insects. 2020 Sep 17;11(9):639. doi: 10.3390/insects11090639.
is a significant migratory invasive pest, identified as a serious threat to agricultural production and food security in China. However, to our knowledge, the effects of most host plants on the biological characteristics of have not been well studied. To develop effective management strategies for in its new invasive habitat, basic biological and ecological knowledge of this pest are crucial requirements. Here, we examined the effects of six cash crops maize, wheat, soybean, tomato, cotton and Chinese cabbage on the development, survival, fecundity of by using the age-stage, two-sex life table. The preadult stage, adult preoviposition period and total preoviposition period of were shortest on maize and wheat but were longest on tomato. Fecundity was greatest on maize and wheat but smallest on tomato. The highest intrinsic rate of increase, finite rate of increase, net reproductive rate and the shortest mean generation time were recorded on maize. This present study showed that could cause great economic losses to these cash crops, which should attract the attention of agricultural management departments. Our findings provide useful information in predicting population dynamics and understanding the potential damage that could be incurred by invasion.
是一种重要的迁飞性入侵害虫，被认定为对中国农业生产和粮食安全的严重威胁。然而，据我们所知，大多数寄主植物对其生物学特性的影响尚未得到充分研究。为了在其新的入侵栖息地制定有效的管理策略，掌握这种害虫的基本生物学和生态学知识是至关重要的要求。在此，我们使用年龄-阶段两性生命表，研究了六种经济作物玉米、小麦、大豆、番茄、棉花和大白菜对其发育、存活、繁殖力的影响。其幼虫期、成虫产卵前期和总产卵前期在玉米和小麦上最短，但在番茄上最长。繁殖力在玉米和小麦上最大，但在番茄上最小。在玉米上记录到最高的内禀增长率、周限增长率、净增殖率和最短的平均世代时间。本研究表明，其会给这些经济作物造成巨大经济损失，应引起农业管理部门的关注。我们的研究结果为预测种群动态以及了解其入侵可能造成的潜在损害提供了有用信息。
