Philips C R, Kuhar T P, Dively G P, Hamilton G, Whalen J, Kamminga K
Department of Entomology, University of Minnesota, North Central Research & Outreach Center, Grand Rapids, MN, USA.
Department of Entomology, Virginia Polytechnic Institute and State University, Blacksburg, VA, USA.
J Econ Entomol. 2017 Feb 1;110(1):192-200. doi: 10.1093/jee/tow256.
The brown marmorated stink bug, Halyomorpha halys (Stål), is an invasive stink bug (Hemiptera: Pentatomidae) introduced into the United States in the mid-1990s. Since its initial establishment, it has spread throughout the east coast as far south as Georgia, and as far north as New Hampshire. While information is available regarding H. halys behavior and life history in some crops, relatively little information is available for vegetables such as peppers. Key questions include understanding when H. halys enters pepper fields to feed and how best to predict infestations, what population levels create economic damage, and if peppers that vary in capsaicin levels also vary in susceptibility to attack. To answer these questions, replicated plots were set up across four mid-Atlantic states using three types of peppers: sweet bell, sweet banana, and hot chili. We found that there was no difference in the overall abundance of all life stages of H. halys on all pepper varieties tested. However, there were differences in bug density by site, but these differences did not translate to differences in the proportion of damaged fruit. The presence of adult H. halys is a better predictor of damage in banana peppers, whereas nymphs are a better predictor in bell pepper. In addition, across all sites, the presence of egg masses was low in pepper crops and densities of both adults and immatures tend to peak on pepper plants in early August. Altogether, this information can be used to help develop a pest management program in peppers that will reduce crop losses to this new devastating pest, while reducing the reliance on insecticides to manage this pest at the same time.
棕色木蝽，学名Halyomorpha halys (Stål)，是一种入侵性蝽类（半翅目：蝽科），于20世纪90年代中期被引入美国。自最初定殖以来，它已扩散至整个东海岸，南至佐治亚州，北至新罕布什尔州。虽然有关于H. halys在某些作物中的行为和生活史的信息，但关于辣椒等蔬菜的信息相对较少。关键问题包括了解H. halys何时进入辣椒田取食以及如何最好地预测虫害、何种种群水平会造成经济损失，以及辣椒素含量不同的辣椒对攻击的易感性是否也不同。为了回答这些问题，在大西洋中部的四个州使用三种辣椒品种设置了重复地块：甜椒、甜香蕉椒和辣椒。我们发现，在所有测试的辣椒品种上，H. halys所有生命阶段的总体丰度没有差异。然而，不同地点的虫口密度存在差异，但这些差异并未转化为受损果实比例的差异。成年H. halys的存在是香蕉椒受损情况的更好预测指标，而若虫则是甜椒受损情况的更好预测指标。此外，在所有地点，辣椒作物中卵块的数量都很低，成虫和未成熟个体的密度在8月初往往在辣椒植株上达到峰值。总之，这些信息可用于帮助制定辣椒害虫管理计划，减少这种新的毁灭性害虫造成的作物损失，同时减少对杀虫剂防治这种害虫的依赖。
