Hemp (Cannabis sativa L.) is now being grown within the United States over a much broader geographic area and for different uses than during its last period of significant production that ended after World War II. Within the past 3 yr, a large number of arthropod species have been documented to feed on hemp in the United States. Among key pest species, corn earworm, Helicoverpa zea (Boddie) (Lepidoptera: Noctuidae), has demonstrated greatest potential for crop injury, being particularly damaging to flower buds. Hemp russet mite, Aculops cannibicola (Farkas), and cannabis aphid, Phorodon cannabis Passerini, are the two species observed most damaging among those that suck plant fluids. Eurasian hemp borer, Grapholita delineana Walker, is widely present east of the Rocky Mountains and appears to have potential to significantly damage both flower buds and developing seeds. Numerous species of caterpillars, grasshoppers, and beetles chew hemp foliage; the severity of these defoliation injuries appears to be minimal, but needs further study. Similarly, numerous seed feeding hemipterans, most notably stink bugs and Lygus bugs, are regularly found in the crop but injury potential remains unclear. Some preliminary efforts have been made to develop integrated pest management strategies for these insects, particularly for corn earworm. Future research can be expected to rapidly resolve many of the data gaps that presently restrict advancing pest management on the crop. However, a major confounding issue involves the use of pesticides on hemp. Federal agencies have not yet provided clear direction on this issue, and regulatory decisions have subsequently devolved to the states.

中文翻译：

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在美国为大麻开发害虫管理系统：正在进行的工作

大麻 (Cannabis sativa L.) 现在在美国种植的地理区域和用途比二战后结束的最后一个重要生产时期要广泛得多。在过去的 3 年里，美国有大量节肢动物物种被记录在案，以大麻为食。在主要害虫物种中，玉米穗虫 Helicoverpa zea (Boddie)（鳞翅目：夜蛾科）已显示出对作物伤害的最大可能性，尤其是对花蕾的损害。大麻赤褐色螨、Aculops cannibicola (Farkas) 和大麻蚜虫 Phorodon 大麻 Passerini 是观察到的两种吸食植物液体的物种中最具破坏性的物种。欧亚麻蛀虫，Grapholita delineana Walker，广泛存在于落基山脉以东，似乎有可能显着损害花蕾和发育中的种子。许多种类的毛虫、蚱蜢和甲虫咀嚼大麻叶；这些落叶损伤的严重程度似乎很小，但需要进一步研究。同样，在作物中经常发现许多以种子为食的半翅目动物，最显着的是臭虫和莱格斯虫，但伤害潜力尚不清楚。已经做出了一些初步努力来为这些昆虫，特别是玉米耳虫制定综合的害虫管理策略。预计未来的研究将迅速解决目前限制作物病虫害管理的许多数据空白。然而，一个主要的混淆问题涉及在大麻上使用杀虫剂。