在土壤生物测定中,用新型(溴氟醚、异环醚)和先前登记的杀虫剂处理小麦种子后,线虫(鞘翅目:鞘翅科)的行为。

IF 1.5 3区 农林科学 Q2 ENTOMOLOGY
Willem G van Herk, Robert S Vernon, Bobbi Vojtko, Shelby Snow, Andrea Chee, Amber Burnett
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引用次数: 0

摘要

继林丹在北美作为控制线虫的谷物作物种子处理的取消注册之后,寻找替代品的大部分研究工作都集中在新烟碱类、二胺类、拟除虫菊酯类、苯基吡唑类以及最近的间二胺类和异恶唑啉类杀虫剂上。尽管这些类别的杀虫剂已被证明可以保护谷物作物免受线虫的危害,但并非所有杀虫剂都能显著减少田间的线虫数量。为了研究这一问题,我们在实验室中将线虫(Agriotes obscurus L.和Agriotes lineatus L.)暴露于用上述杀虫剂处理过的小麦种子中,重点研究了新开发的间二胺溴flanilide和异恶唑啉异环胺。在土壤窗口研究中,观察了3小时内线虫的各种行为(如驱避),并在24小时和7天后再次记录了线虫的毒性症状。溴氰胺、异环氰胺、噻虫嗪(新烟碱类)、氰虫腈(二胺)和氟虫腈(苯吡唑)处理的种子没有驱避记录,但拟除虫菊酯-氰氯氰菊酯有中度驱避。暴露24小时后,噻虫嗪、氰虫腈和氰氯氰菊酯处理仅引起轻微的发病症状,这些症状在7 d后大部分消失。溴氟酰胺、异环氰胺和氟虫腈处理在7 d后从最初的轻微发病症状发展为更不可逆的发病症状。这些数据以及早期的实验室和现场试验解释了为什么溴氟酰胺、异环氰胺、氟虫腈和氟虫腈处理会减少现场线虫种群。氟虫腈相对于新烟碱类,二胺类和拟除虫菊酯杀虫剂。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Pest ManagementBehavior of wireworms (Coleoptera: Elateridae) exposed to wheat seed treated with novel (broflanilide, isocycloseram) and previously registered insecticides in a soil bioassay.

Following the de-registration of lindane as a cereal crop seed treatment for wireworm control in North America, most of the research efforts to find replacements have focused on neonicotinoid, diamide, pyrethroid, phenyl pyrazole, and most recently, meta-diamide and isoxazoline insecticide classes. Although insecticides within these classes have been shown to provide cereal crop protection from wireworm damage, not all insecticides will significantly reduce wireworm populations in the field. To investigate this, we exposed wireworms (Agriotes obscurus L. and Agriotes lineatus L.) to wheat seeds treated with insecticides in the above insecticide classes in soil bioassays in the lab, with a focus on the newly developed meta-diamide broflanilide and the isoxazoline isocycloseram. Various wireworm behaviors (eg repellency) were observed in soil window studies for 3 h, and symptoms of toxicity were recorded upon wireworm removal at 24 h and again at 7 d. No repellency was recorded from seed treated with broflanilide, isocycloseram, thiamethoxam (neonicotinoid), cyantraniliprole (diamide), and fipronil (phenyl pyrazole), but moderate repellency occurred with the pyrethroid λ-cyhalothrin. After 24 h exposure, thiamethoxam, cyantraniliprole, and λ-cyhalothrin treatments had elicited only minor morbidity symptoms, which had mostly disappeared after 7 d. Broflanilide, isocycloseram, and fipronil treatments, however, progressed from initial minor morbidity symptoms to more irreversible morbidity symptoms after 7 d. These data and earlier lab and field trials explain why field populations of wireworms are reduced by broflanilide, isocycloseram, and fipronil treatments relative to neonicotinoid, diamide, and pyrethroid insecticides.

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来源期刊
Environmental Entomology
Environmental Entomology 生物-昆虫学
CiteScore
3.90
自引率
5.90%
发文量
97
审稿时长
3-8 weeks
期刊介绍: Environmental Entomology is published bimonthly in February, April, June, August, October, and December. The journal publishes reports on the interaction of insects with the biological, chemical, and physical aspects of their environment. In addition to research papers, Environmental Entomology publishes Reviews, interpretive articles in a Forum section, and Letters to the Editor.
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