Assessing the Efficacy of Sodium Alginate and Polyacrylamide as Spray Adjuvants Combined with Bifenthrin and Imidacloprid against Lygus lineolaris and Piezodorus guildinii

Agriculture Pub Date : 2024-03-28 DOI:10.3390/agriculture14040535

Yuzhe Du, Shane Scheibener, Justin George, Narayanan Kannan, Maribel Portilla

{"title":"Assessing the Efficacy of Sodium Alginate and Polyacrylamide as Spray Adjuvants Combined with Bifenthrin and Imidacloprid against Lygus lineolaris and Piezodorus guildinii","authors":"Yuzhe Du, Shane Scheibener, Justin George, Narayanan Kannan, Maribel Portilla","doi":"10.3390/agriculture14040535","DOIUrl":null,"url":null,"abstract":"The tarnished plant bug, Lygus lineolaris, and the red-banded stink bug, Piezodorus guildinii, pose significant economic threats to cotton and soybean crops in the mid-southern USA. However, the efficacy of insecticide spraying is comparatively low, and adjuvants play a crucial role in optimizing insecticide performance. This study evaluated the impact of two adjuvants, sodium alginate (SA) and polyacrylamide (PAM), on enhancing the efficacy of bifenthrin and imidacloprid via laboratory spray bioassays. Both SA and PAM demonstrated insignificant variation in LC50 values with formulated bifenthrin and imidacloprid. However, SA and PAM exhibited synergistic effects with two technical-grade insecticides. High concentrations of PAM increased the efficacy of bifenthrin by 1.50- and 1.70-fold for L. lineolaris and P. guildinii, respectively. Conversely, no enhancement effect was observed for the SA–technical-grade bifenthrin combination against either insect pests. Additionally, both SA and PAM enhanced the effectiveness of imidacloprid in P. guildinii by up to 2.68- and 2.73-fold, respectively. While a high concentration of PAM had a 1.45-fold synergistic effect on technical-grade imidacloprid, no enhancement effect was observed for the SA/imidacloprid combination in L. lineolaris. This study explored the synergistic impact of SA and PAM on the efficacy of technical-grade and formulated bifenthrin and imidacloprid, providing valuable insights into optimizing pest control strategies in agriculture.","PeriodicalId":503580,"journal":{"name":"Agriculture","volume":"36 5","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2024-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Agriculture","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.3390/agriculture14040535","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}

引用次数: 0

Abstract

The tarnished plant bug, Lygus lineolaris, and the red-banded stink bug, Piezodorus guildinii, pose significant economic threats to cotton and soybean crops in the mid-southern USA. However, the efficacy of insecticide spraying is comparatively low, and adjuvants play a crucial role in optimizing insecticide performance. This study evaluated the impact of two adjuvants, sodium alginate (SA) and polyacrylamide (PAM), on enhancing the efficacy of bifenthrin and imidacloprid via laboratory spray bioassays. Both SA and PAM demonstrated insignificant variation in LC50 values with formulated bifenthrin and imidacloprid. However, SA and PAM exhibited synergistic effects with two technical-grade insecticides. High concentrations of PAM increased the efficacy of bifenthrin by 1.50- and 1.70-fold for L. lineolaris and P. guildinii, respectively. Conversely, no enhancement effect was observed for the SA–technical-grade bifenthrin combination against either insect pests. Additionally, both SA and PAM enhanced the effectiveness of imidacloprid in P. guildinii by up to 2.68- and 2.73-fold, respectively. While a high concentration of PAM had a 1.45-fold synergistic effect on technical-grade imidacloprid, no enhancement effect was observed for the SA/imidacloprid combination in L. lineolaris. This study explored the synergistic impact of SA and PAM on the efficacy of technical-grade and formulated bifenthrin and imidacloprid, providing valuable insights into optimizing pest control strategies in agriculture.

查看原文本刊更多论文

评估海藻酸钠和聚丙烯酰胺作为喷洒佐剂与联苯菊酯和吡虫啉复配使用对鳞翅目和豚草属植物的功效

玷污植物蝽 Lygus lineolaris 和红带蝽 Piezodorus guildinii 对美国中南部的棉花和大豆作物造成了严重的经济威胁。然而，杀虫剂的喷洒效果相对较低，而佐剂在优化杀虫剂性能方面起着至关重要的作用。本研究通过实验室喷雾生物测定评估了海藻酸钠（SA）和聚丙烯酰胺（PAM）这两种佐剂对提高联苯菊酯和吡虫啉药效的影响。海藻酸盐和聚丙烯酰胺与配制的联苯菊酯和吡虫啉的半致死浓度值差异不大。不过，SA 和 PAM 与两种工业级杀虫剂具有协同作用。高浓度的 PAM 可使联苯菊酯对 L. lineolaris 和 P. guildinii 的药效分别提高 1.50 倍和 1.70 倍。相反，SA-技术级联苯菊酯组合对这两种害虫都没有增效作用。此外，SA 和 PAM 对吡虫啉的防治效果分别提高了 2.68 倍和 2.73 倍。虽然高浓度 PAM 对工业级吡虫啉的增效作用为 1.45 倍，但在 L. lineolaris 中，SA/吡虫啉组合未观察到任何增效作用。本研究探讨了 SA 和 PAM 对工业级联苯菊酯和吡虫啉药效的协同影响，为优化农业害虫防治策略提供了宝贵的见解。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Agriculture

自引率

0.00%

发文量