Abstract Low tunnels covered with spun-bonded fabric (row covers) provide season extension for vegetable production and also afford a physical barrier against airborne insects and other non-soil pests. Brussels sprouts, Brassica oleracea L. group Gemmifera (Brassicaceae), is a popular vegetable in local markets in Virginia; however, unprotected field production is severely affected by insect pest infestation.This study's objective was to determine the level of protection low tunnels provide against insect infestation and leaf herbivory injury.The experiment was conducted at the Virginia Tech Eastern Shore Agricultural Research and Extension Center in Painter,Virginia. The experimental design was split-plot with polyethylene soil mulches (white or black) as whole plot factors and production systems (low tunnel or open field) as subplot factors. In this study, low tunnels reduced insect infestation and chewing herbivory leaf injury to Brussels sprouts. Compared to an unprotected open field, infestations of lepidopteran insects and harlequin bug, Murgantia histrionica (Hahn) (Hemiptera: Pentatomidae) were reduced on plants under low tunnels. However, aphids (Hemiptera: Aphidae) infestation occurred under low tunnels in fall.There was no effect of color mulches (white or black) and no interaction between tunnel and mulch color on insect infestation and chewing injury. Fewer insect infestations and feeding injury indicate that low tunnels can be an effective management tool for sustainable vegetable production.

中文翻译：

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低隧道减少了抱子甘蓝上的昆虫种群、杀虫剂应用和咀嚼昆虫的危害

摘要 用纺粘织物（行覆盖物）覆盖的低矮隧道为蔬菜生产提供了季节延长，也为空气传播的昆虫和其他非土壤害虫提供了物理屏障。抱子甘蓝，Brassica oleracea L. group Gemmifera (Brassicaceae)，是弗吉尼亚州当地市场上很受欢迎的蔬菜；然而，未受保护的田间生产受到虫害侵扰的严重影响。本研究的目的是确定低隧道对虫害和叶食草植物伤害的保护水平。该实验在弗吉尼亚理工大学东岸农业研究和推广中心进行画家，弗吉尼亚州。试验设计是分裂小区，以聚乙烯土壤覆盖物（白色或黑色）作为整地因子，生产系统（低隧道或开阔地）作为子小区因子。在这项研究中，低隧道减少了虫害和咀嚼食草叶片对抱子甘蓝的伤害。与未受保护的开阔地相比，在低隧道下的植物上，鳞翅目昆虫和丑角臭虫 Murgantia histrionica (Hahn) (Hemiptera: Pentatomidae) 的感染减少了。然而，蚜虫（半翅目：蚜科）在秋季发生在低隧道下。没有颜色覆盖物（白色或黑色）和隧道和覆盖物颜色之间的相互作用对昆虫侵染和咀嚼伤害。较少的昆虫侵扰和饲养伤害表明低隧道可以成为可持续蔬菜生产的有效管理工具。鳞翅目昆虫和丑角虫、Murgantia histrionica (Hahn) (Hemiptera: Pentatomidae) 对低隧道下植物的侵染减少。然而，蚜虫（半翅目：蚜科）在秋季发生在低隧道下。没有颜色覆盖物（白色或黑色）和隧道和覆盖物颜色之间的相互作用对昆虫侵染和咀嚼伤害。较少的昆虫侵扰和饲养伤害表明低隧道可以成为可持续蔬菜生产的有效管理工具。鳞翅目昆虫和丑角虫、Murgantia histrionica (Hahn) (Hemiptera: Pentatomidae) 对低隧道下植物的侵染减少。然而，蚜虫（半翅目：蚜科）在秋季发生在低隧道下。没有颜色覆盖物（白色或黑色）和隧道和覆盖物颜色之间的相互作用对昆虫侵染和咀嚼伤害。较少的昆虫侵扰和饲养伤害表明低隧道可以成为可持续蔬菜生产的有效管理工具。彩色覆盖物（白色或黑色）没有影响，隧道和覆盖物颜色之间对昆虫侵扰和咀嚼损伤没有相互作用。较少的昆虫侵扰和饲养伤害表明低隧道可以成为可持续蔬菜生产的有效管理工具。彩色覆盖物（白色或黑色）没有影响，隧道和覆盖物颜色之间对昆虫侵扰和咀嚼损伤没有相互作用。较少的昆虫侵扰和饲养伤害表明低隧道可以成为可持续蔬菜生产的有效管理工具。