Insect resistant and glyphosate tolerant maize, Bt11 × MIR162 × GA21, can enhance management of fall armyworm and weeds in tropical Asia

IF 5.6 1区农林科学 Q1 ENTOMOLOGY

Entomologia Generalis Pub Date : 2024-09-05 DOI:10.1127/entomologia/2024/2567

Xianming Yang, Shuang Chen, Dazhong Liu, Shengyuan Zhao, Guodong Kang, Cheng Song, Zhenwei Tian, Haitao Li, Jingchao Chen, Xiangju Li, Kongming Wu

{"title":"Insect resistant and glyphosate tolerant maize, Bt11 × MIR162 × GA21, can enhance management of fall armyworm and weeds in tropical Asia","authors":"Xianming Yang, Shuang Chen, Dazhong Liu, Shengyuan Zhao, Guodong Kang, Cheng Song, Zhenwei Tian, Haitao Li, Jingchao Chen, Xiangju Li, Kongming Wu","doi":"10.1127/entomologia/2024/2567","DOIUrl":null,"url":null,"abstract":"Insect pests and weeds significantly hinder maize production in tropical areas of Asia, with the invasive fall armyworm, Spodoptera frugiperda (J.E. Smith), exacerbating the challenge by causing major losses. The genetically engineered (GE) maize Bt11 × MIR162 × GA21 (or Cry1Ab + Vip3Aa), which has been an effective pest management solution in the Americas for approximately two decades, has unexplored potential in Asia. This study evaluated the efficacy of this event against fall armyworm and glyphosate’s weed control capability through laboratory and field trials in China’s tropical area, aiming to improve integrated pest management (IPM) strategies in Asia. Laboratory assays showed high effectiveness against fall armyworm neonates (> 95%) and against 3rd instars (> 90%) using Bt maize tissues. Field trials validated Bt maize protection during the vegetative and reproductive phases, markedly diminishing fall armyworm larval prevalence; efficacy ranged from 99.6% in 2021, 97.1% in 2022, and 96.2% in 2023. In addition, Bt maize prevented yield losses of 9.2% to 20.9%. The results also indicated that glyphosate and a local herbicide mix (active ingredient nicosulfuron, atrazine, and mesotrione) exhibited comparable weed control efficacy under field conditions. Thus, Bt11 × MIR162 × GA21, following 3 years of research, was found to a potent IPM tool for tropical Asia, offering substantial protection against fall armyworm, weed control and aiding in trait resistance management.","PeriodicalId":11728,"journal":{"name":"Entomologia Generalis","volume":null,"pages":null},"PeriodicalIF":5.6000,"publicationDate":"2024-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Entomologia Generalis","FirstCategoryId":"97","ListUrlMain":"https://doi.org/10.1127/entomologia/2024/2567","RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENTOMOLOGY","Score":null,"Total":0}

引用次数: 0

Abstract

Insect pests and weeds significantly hinder maize production in tropical areas of Asia, with the invasive fall armyworm, Spodoptera frugiperda (J.E. Smith), exacerbating the challenge by causing major losses. The genetically engineered (GE) maize Bt11 × MIR162 × GA21 (or Cry1Ab + Vip3Aa), which has been an effective pest management solution in the Americas for approximately two decades, has unexplored potential in Asia. This study evaluated the efficacy of this event against fall armyworm and glyphosate’s weed control capability through laboratory and field trials in China’s tropical area, aiming to improve integrated pest management (IPM) strategies in Asia. Laboratory assays showed high effectiveness against fall armyworm neonates (> 95%) and against 3rd instars (> 90%) using Bt maize tissues. Field trials validated Bt maize protection during the vegetative and reproductive phases, markedly diminishing fall armyworm larval prevalence; efficacy ranged from 99.6% in 2021, 97.1% in 2022, and 96.2% in 2023. In addition, Bt maize prevented yield losses of 9.2% to 20.9%. The results also indicated that glyphosate and a local herbicide mix (active ingredient nicosulfuron, atrazine, and mesotrione) exhibited comparable weed control efficacy under field conditions. Thus, Bt11 × MIR162 × GA21, following 3 years of research, was found to a potent IPM tool for tropical Asia, offering substantial protection against fall armyworm, weed control and aiding in trait resistance management.

查看原文本刊更多论文

抗虫和耐草甘膦玉米 Bt11 × MIR162 × GA21 可加强亚洲热带地区对秋季军团虫和杂草的管理

虫害和杂草严重阻碍了亚洲热带地区的玉米生产，而入侵性秋绵虫（Spodoptera frugiperda (J.E. Smith)）则加剧了这一挑战，造成了重大损失。转基因（GE）玉米 Bt11 × MIR162 × GA21（或 Cry1Ab + Vip3Aa）在美洲已成为一种有效的害虫管理解决方案长达二十年之久，但在亚洲的潜力仍有待开发。本研究通过在中国热带地区进行实验室和田间试验，评估了该品种对秋刺虫的防效和草甘膦的除草能力，旨在改进亚洲的虫害综合防治（IPM）策略。实验室试验表明，使用 Bt 玉米组织对秋刺虫幼虫（95%）和三代虫（90%）具有很高的防效。田间试验验证了 Bt 玉米在无性和生殖阶段的保护作用，显著降低了秋刺吸虫幼虫的发生率；2021 年的有效率为 99.6%，2022 年为 97.1%，2023 年为 96.2%。此外，Bt 玉米还能防止 9.2% 至 20.9% 的产量损失。研究结果还表明，在田间条件下，草甘膦和当地混合除草剂（有效成分烟嘧磺隆、莠去津和甲磺隆）的除草效果相当。因此，经过 3 年的研究发现，Bt11 × MIR162 × GA21 是亚洲热带地区一种有效的 IPM 工具，可有效防止秋绵虫，控制杂草，并有助于性状抗性管理。

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

Entomologia Generalis 生物-昆虫学

CiteScore

7.10

自引率

18.80%

发文量

审稿时长

>12 weeks

期刊介绍： Its scope covers all aspects of basic and applied research dealing with insects and more broadly with arthropods inhabiting wild, agricultural and/or urban habitats. The journal also considers research integrating various disciplines and issues within the broad field of entomology and ecology. Entomologia Generalis publishes high quality research articles on advances in knowledge on the ecology and biology of arthropods, as well as on their importance for key ecosystems services, e.g. as biological control and pollination. The journal devotes special attention to contributions providing significant advances (i) on the fundamental knowledge and on sustainable control strategies of arthropod pests (including of stored products) and vectors of diseases, (ii) on the biology and ecology of beneficial arthropods, (iii) on the spread and impact of invasive pests, and (iv) on potential side effects of pest management methods. Entomologia Generalis welcomes review articles on significant developments in the field of entomology. These are usually invited by the editorial board, but proposals may be sent to the Editor-in-Chief for preliminary assessment by the editorial board before formal submission to the journal. The journal also considers comments on papers published in Entomologia Generalis, as well as short notes on topics that are of broader interest.