Response of a sulfonylurea (SU)-resistant biotype of Limnophila sessiliflora to selected SU and alternative herbicides
Response of a sulfonylurea (SU)-resistant biotype of Limnophila sessiliflora to selected SU and alternative herbicides
复制标题
磺酰脲类 (SU) 抗性生物型 Limnophila sessiliflora 对所选 SU 和替代除草剂的反应
DOI：
10.1006/pest.2000.2504
复制
发表时间：
2000
影响因子：
4.7
通讯作者：
K. Itoh
中科院分区：
文献类型：
--
作者：
Guang;Hiroaki Watanabe;A. Uchino;K. Itoh
摘要磺酰脲类除草剂具有除草活性高、对哺乳动物低毒的特点，自1988年起在日本秋田县仙南村应用于稻田无柄石龙及其它阔叶杂草的防除。自1996年以来，对L.无柄花与SU除草剂的组合不再令人满意。1997年在东北农业试验场进行了两次温室试验，在森南村进行了一次稻田试验，以确认L。无柄花对SU除草剂的抗性，并比较除草剂处理对抗SU L.无柄花温室研究表明，L。森南村无柄花型对苄嘧磺隆（BSM）、乙嘧磺隆（PSE）、咪唑磺隆（IMS）和乙氧磺隆（ETS）4种SU除草剂具有交互抗性。基于GR 50（50%生长减少）值，抗性生物型对SU除草剂的抗性是来自秋田Omagari的敏感生物型的300-900倍。苗后施用丙草胺和戊恶草酮或西草净+2甲4氯硫乙酯、ETS +吡唑+丙草胺、苄嘧磺隆+咖啡醚+杀草隆和苄嘧磺隆+杀草隆+咖啡醚+四唑嘧磺隆的混合物的标准处理控制了抗SU的L.无柄花在田间试验中，IMS +咖啡醚菌酯+杀草隆和BSM +苯噻酰草胺混剂均不能有效地防治L.无柄花，但除草剂处理控制抗SU L.无柄花包括芽后施用禾草畏+二甲氰菊酯+ PSE +丙草胺和苄嘧磺草胺+硫代苯威+苯噻草胺的混合物，以及顺序施用丙草胺/硫代苯威+西草净+ MCPB、丙草胺/联苯醚+ SAP、丙草胺/MCPA-硫代乙基+西草净和丙草胺/苄嘧磺草胺+硫代苯威+苯噻草胺。我们的研究结果表明，抗SU L。无柄花对不同作用方式的除草剂没有产生多重抗性。特别是酰胺类或苯氧基类除草剂是有效的防治措施。
Abstract Sulfonylurea (SU) herbicides, known for their high herbicidal activity and low mammalian toxicity, were used since 1988 to control Limnophila sessiliflora and other broadleaf weeds on rice fields at Sennan Village, Akita Prefecture, Japan. Since 1996, control of L. sessiliflora with the SU herbicides was no longer satisfactory. Two greenhouse studies at Tohoku National Agricultural Experiment Station and one experiment in the rice fields at Sennan Village were conducted in 1997 to confirm L. sessiliflora resistance to SU herbicides and to compare herbicide treatments for control of SU-resistant L. sessiliflora . Greenhouse studies showed that the L. sessiliflora biotype from Sennan Village was cross-resistant to four SU herbicides, including bensulfuron-methyl (BSM), pyrazosulfuron-ethyl (PSE), imazosulfuron (IMS), and ethoxysulfuron (ETS). The resistant biotype was 300–900 times more resistant to SU herbicides than the susceptible biotype from Omagari, Akita based on GR 50 (50% growth reduction) values. Standard treatments of pretilachlor and pentoxazone or mixtures of simetryn + MCPA-thioethyl, ETS + pyrazolate + pretilachlor, BSM + cafenstrole + daimuron, and BSM + daimuron + cafenstrole + azimusulfuron applied postemergence controlled SU-resistant L. sessiliflora . In the field experiment, mixtures of IMS + cafenstrole + daimuron and BSM + mefenacet failed to control L. sessiliflora , but herbicide treatments controlling SU-resistant L. sessiliflora included postemergence applications of mixtures of esprocarb + dimethametryn + PSE + pretilachlor and BSM + thiobencarb + mefenacet and sequential applications of pretilachlor/thiobencarb + simetryn + MCPB, pretilachlor/bifenox + SAP, pretilachlor/MCPA-thioethyl + simetryn, and pretilachlor/BSM + thiobencarb + mefenacet. Our results suggest that the SU-resistant L. sessiliflora had not developed multiple resistances to herbicides with different modes of action. In particular, amide or phenoxy herbicides were effective control measures.