Darnell-Crumpton Chelsie, Catchot Angus L, Cook Donald R, Gore Jeffrey, Dodds Darrin M, Morsello Shannon C, Musser Fred R
Department of Biochemistry, Molecular Biology, Entomology, and Plant Pathology, Mississippi State University, Mississippi State, MS.
Mississippi State University, Delta REC, Stoneville, MS.
J Econ Entomol. 2018 Dec 14;111(6):2824-2830. doi: 10.1093/jee/toy298.
Insecticidal efficacy of neonicotinoid insecticides used against tobacco thrips, Frankliniella fusca (Hinds) (Thysanoptera: Thripidae), in cotton, Gossypium hirisutum L. (Malvales: Malvaceae), was evaluated for field populations collected in Mississippi during 2014-2016. Resistance was documented in 16 and 57% of populations to imidacloprid and thiamethoxam, respectively. Resistance levels did not vary by host plant for any neonicotinoid, but resistance levels varied between the two main agricultural areas (Delta and Hills) of Mississippi and among years for some neonicotinoids. In spite of documented resistance, neonicotinoid seed treatments are still used on cotton in the midsouthern United States due to the lack of reliable alternative management strategies. The development of alternative thrips management strategies is critical to the sustainability of cotton production in the midsouthern United States.
2014年至2016年期间,对从密西西比州采集的田间棉蓟马(Frankliniella fusca (Hinds),缨翅目:蓟马科)种群,评估了用于棉花(陆地棉,Gossypium hirsutum L.,锦葵目:锦葵科)的新烟碱类杀虫剂的杀虫效果。分别有16%和57%的种群对吡虫啉和噻虫嗪产生了抗性。对于任何新烟碱类杀虫剂,抗性水平不因寄主植物而异,但在密西西比州的两个主要农业区(三角洲地区和丘陵地区)之间以及某些新烟碱类杀虫剂在不同年份的抗性水平有所不同。尽管有抗性记录,但由于缺乏可靠的替代管理策略,新烟碱类种子处理剂仍在美国中南部用于棉花种植。开发替代蓟马管理策略对于美国中南部棉花生产的可持续性至关重要。