Douglas Thomas J, Jacobson Alana L, Brown Steve, Kesheimer Katelyn A, Graham Scott H
Entomology and Plant Pathology, Auburn University, Auburn, AL, USA.
Crops, Soil, and Environmental, Auburn University, Auburn, AL, USA.
Environ Entomol. 2025 Feb 19;54(1):149-153. doi: 10.1093/ee/nvae122.
Stink bug species emerged as major insect pests of cotton in the mid-southern United States following the eradication of the boll weevil and the introduction of genetically modified Bt cotton for lepidopteran pests. Considering the limited number of chemical classes available for insect control, further insights into other chemistries are necessary to inform management strategies with the overall goal of establishing and maintaining the most cost efficient and efficacious control programs for stink bugs in Alabama. The insect growth regulator, novaluron, has shown control of tarnished plant bugs, but little research has been done on its effect in stink bugs. The objective of our study is to evaluate the effects of novaluron, in a laboratory setting, on adult fecundity, nymphal mortality, and yield and damage in the field. We hypothesized that novaluron would have a direct effect on mortality in nymphs and could decrease fecundity in adult stink bugs. Although the effect on fecundity was counter to our hypothesis, this study shows effective control of nymphs in our model insect, the southern green stink bug, Nezara viridula (Hemiptera: Pentatomidae). Future evaluation of proper timing of novaluron applications could make this a valuable tool for residual control of stink bugs in cotton.
在美国中南部地区，随着棉铃象甲的根除以及用于防治鳞翅目害虫的转基因抗虫棉的引入，椿象种类成为棉花的主要害虫。考虑到用于害虫防治的化学类别数量有限，有必要进一步深入了解其他化学方法，以便为管理策略提供信息，总体目标是为阿拉巴马州的椿象建立并维持最具成本效益和效果的防治方案。昆虫生长调节剂诺瓦隆已显示出对牧草盲蝽有防治效果，但对其在椿象上的作用研究甚少。我们研究的目的是在实验室环境中评估诺瓦隆对成虫繁殖力、若虫死亡率以及田间产量和损害的影响。我们假设诺瓦隆会对若虫死亡率产生直接影响，并能降低成年椿象的繁殖力。尽管对繁殖力的影响与我们的假设相反，但本研究表明，在我们的模式昆虫——绿盲蝽（半翅目：蝽科）中，诺瓦隆对若虫有有效的防治作用。未来对诺瓦隆施用适当时机的评估可能会使其成为棉花中椿象残留防治的宝贵工具。
