Ajayi Olufemi S, Samuel-Foo Michelle
Department of Biological Sciences, Alabama State University, Montgomery, AL 36104, USA.
Insects. 2021 Oct 15;12(10):940. doi: 10.3390/insects12100940.
There has been a resurgence in the cultivation of industrial hemp, L., in the United States since its recent legalization. This may facilitate increased populations of arthropods associated with the plant. Hemp pests target highly marketable parts of the plant, such as flowers, stalks, and leaves, which ultimately results in a decline in the quality. Industrial hemp can be used for several purposes including production of fiber, grain, and cannabidiol. Thus, proper management of pests is essential to achieve a substantial yield of hemp in the face of climate change. In this review, we provide updates on various arthropods associated with industrial hemp in the United States and examine the potential impact of climate change on corn earworm (CEW) Boddie, a major hemp pest. For example, temperature and photoperiod affect the development and diapause process in CEW. Additionally, drought can lead to a reduction in hemp growth. Host plant diversity of CEW may prevent populations of the pest from reaching outbreak levels. It is suggested that hemp varieties resistant to drought, high soil salinity, cold, heat, humidity, and common pests and diseases should be selected. Ongoing research on effective management of CEW in hemp is critical.
自工业大麻（Cannabis sativa L.）近期在美国合法化以来，其种植出现了复苏。这可能会促使与该植物相关的节肢动物数量增加。大麻害虫会侵害植物中具有高市场价值的部分，如花朵、茎秆和叶子，最终导致品质下降。工业大麻可用于多种用途，包括纤维、谷物和大麻二酚的生产。因此，在气候变化的背景下，妥善管理害虫对于实现大麻的高产至关重要。在本综述中，我们提供了美国与工业大麻相关的各种节肢动物的最新信息，并研究了气候变化对大麻主要害虫玉米穗虫（Helicoverpa zea Boddie）的潜在影响。例如，温度和光周期会影响玉米穗虫的发育和滞育过程。此外，干旱会导致大麻生长减缓。玉米穗虫的寄主植物多样性可能会阻止该害虫种群达到爆发水平。建议选择对干旱、高土壤盐分、寒冷、炎热、湿度以及常见病虫害具有抗性的大麻品种。正在进行的关于大麻中玉米穗虫有效管理的研究至关重要。
