| 3种杀菌剂对辣椒炭疽病菌的毒力测定 |
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| 引用本文： | 刘曦,甘大武,易图永. 3种杀菌剂对辣椒炭疽病菌的毒力测定[J]. 现代农业科技, 2014, 0(22) |
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| 作者姓名： | 刘曦 甘大武 易图永 |
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| 作者单位： | 1. 湖南农业大学植物保护学院,湖南长沙,410128
2. 湖南农业大学植物保护学院，湖南长沙 410128; 植物病虫害生物学与防控湖南省重点实验室; 植物疾病控制与利用湖南省高校重点实验室 |
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| 摘 要： | 辣椒炭疽病是辣椒上的一种主要病害,为筛选出可有效防治辣椒炭疽病的药剂,采用菌丝生长速率法室内测定了3种杀菌剂和两两混用对辣椒炭疽病菌的毒力。结果表明:单剂中以咪鲜胺、双苯菌胺对辣椒炭疽病菌菌丝生长的抑制作用强,EC50分别为0.144 5、0.147 9μg/m L,精甲霜灵的抑制作用弱,EC50为9.549 9μg/m L;咪鲜胺与双苯菌胺按5∶1和1∶4混用,其共毒系数分别达为198和355,表现为增效作用;咪鲜胺与双苯菌胺按3∶1和精甲霜灵与双苯菌胺按1∶3混用,共毒系数分别为101和105,表现为相加作用。
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| 关 键 词： | 辣椒炭疽病菌 毒力测定 共毒系数 增效作用 |
Toxicity Test of Three Fungicides to Colletotrichum gloesporioides |
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| LIU Xi,GAN Da-wu,YI Tu-yong. Toxicity Test of Three Fungicides to Colletotrichum gloesporioides[J]. Modern Agricultural Sciences and Technology, 2014, 0(22) |
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| Authors: | LIU Xi GAN Da-wu YI Tu-yong |
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| Abstract: | Pepper anthracnose caused by Colletotrichum gloesporioides was a disease on pepper.For screening effective fungicides to control Colletotrichum gloesporioides,three fungicides and their combinations were tested their inhibition to Colletotrichum gloesporioides in laboratory using mycelia growth rate method.The results showed that Prochloraz and SYP-14288 had powerful toxicity with EC500.144 5、0.147 9 μg/m L;Prochloraz mixed SYP-14288 with 5∶1 and 1∶4 showed synergistic effect with co-toxicity index respectively 198 and 355;Prochloraz mixed SYP-14288 with 3 ∶1and metalaxyl-M mixed SYP-14288 with 1∶3 showed additive effect with co-toxicity index respectively 101 and 105. |
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| Keywords: | Colletotrichum gloesporioides toxicity test cotoxicity index synergistic effect |
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