摘要
用"嘧肽菌净"对烟草靶斑病进行了室内抑菌和田间防效试验。结果表明:①6%"嘧肽菌净"水剂对烟草靶斑病菌具有明显抗生作用,稀释600倍液的"嘧肽菌净"能完全抑制其菌丝生长,破坏菌丝细胞,使菌丝原生质凝聚、液泡消失、内含物外渗;②"嘧肽菌净"及对照药剂三唑酮和甲基托布津的抑菌效果较好,有效抑菌中浓度EC50分别为1.059、2.435和9.852μg/mL;③6%"嘧肽菌净"水剂600倍液对烟草靶斑病的相对防效达85.33%,与对照药剂"甲基托布津"750倍液的防治效果相当,优于"金吉尔灭萎"、"三唑酮"等对照药剂。
Tobacco target spot is a tobacco disease caused by Thanatephorus cucumeris （Frank） Donk. The laboratory test showed that 6% Mitaijunjing aqueous solutions （AS） had strong antibiotic effect against Thanatephorus cucumeris （Frank） Donk, after treating with 6% Mitaijunjing AS diluted at 600, the growth of mycelium was completely inhibited, the mycelium cell was damaged, the cytoplast conglomerated, the vacuole disappeared, and the intracellular fluid osmosed. The indoor tested results indicated that the ECs0 values of Mitaijunjing, Triadimefon and Thiophanate- Methyl were 1. 059, 2. 435 and 9. 852 μg/mL, respectively. The field experiments showed that the relative control effect of 6% Mitaijunjing AS diluted at 600 was 85.33% , which was comparable to Thiophanate-Methyl diluted at 750, and better than Carbendazim and Triadimefon.
出处
《烟草科技》
EI
CAS
北大核心
2007年第9期61-64,共4页
Tobacco Science & Technology
基金
国家烟草专卖局科技项目"烟草专用系列生物农药的研制与开发"(110200201009)
辽宁省烟草专卖局科技项目的一部分
关键词
烟草靶斑病
瓜亡革菌
“嘧肽菌净”
抑菌作用
药效
Tobacco target spot
Thanatephorus cucumeris （Frank） Donk
Mitaijunjing
Inhibitioneffect
Control effect
