CAJ | 학술논문

为筛选出防治由苎麻疫菌引起的棉铃疫病的有效化学药剂，采用菌丝生长速率法测定了9种杀菌剂（40％五氯硝基苯粉剂、50％福美双可湿性粉剂、80％三乙膦酸铝可湿性粉剂、80％代森锰锌可湿性粉剂、70％甲基托布津可湿性粉剂、722 g/L霜霉威盐酸盐水剂、250 g/L嘧菌酯悬浮液、52.5％噁酮·霜脲氰水分散粒剂、46.1％氢氧化铜水分散粒剂）对棉铃疫病病原菌的室内毒力，并通过田间药效试验评价了不同杀菌剂对棉铃疫病的防治效果。田间药效试验结果表明：46.1％氢氧化铜水分散粒剂和80％三乙膦酸铝可湿性粉剂防治效果较好，3次施药后对棉铃疫病的防治效果分别为67.74％、44.68％、36.54％和45.16％、44.68％、32.69％，防效相对稳定，可优选用于棉铃疫病的防治。
위사선출방치유저마역균인기적면령역병적유효화학약제，채용균사생장속솔법측정료9충살균제（40％오록초기분분제、50％복미쌍가습성분제、80％삼을련산려가습성분제、80％대삼맹자가습성분제、70％갑기탁포진가습성분제、722 g/L상매위염산염수제、250 g/L밀균지현부액、52.5％오동·상뇨청수분산립제、46.1％경양화동수분산립제）대면령역병병원균적실내독력，병통과전간약효시험평개료불동살균제대면령역병적방치효과。전간약효시험결과표명：46.1％경양화동수분산립제화80％삼을련산려가습성분제방치효과교호，3차시약후대면령역병적방치효과분별위67.74％、44.68％、36.54％화45.16％、44.68％、32.69％，방효상대은정，가우선용우면령역병적방치。
In order to screening effective chemical fungicides to control cotton boll blight caused by Phytophthora boehmeriae Sawada, the virulences of the 9 tested fungicides ( 40% quintozene powder, 50% thiram wettable powder, 80% fosetyl aluminum wettable powder, 80% mancozeb wettable powder, 70% thiophanate methyl wettable powder, 722 g/L propamocarb hydrochloride aqueous solution, 250 g/L azoxy strobin suspending agent, 52.5% evil ketone cymoxanil water dispersible granule and 46.1% cupric hydroxide water dispersible granule ) against the pathogen Phytophthora boehmeriae were determined by the mycelial growth rate test , while the control efficacy was evaluated by field trials.The results showed that after 3 times application, 46.1% copper hydroxide WG and 80% fosetyl-aluminium WP exhibited a significant control efficacy ( 67.74%, 44.68%, 36.54% and 45.16%, 44.68%, 32.69%) against cotton boll blight, and the control efficacy was relatively stable.These two kinds of fungicides could be used to control cotton boll blight in agriculture practice.