| 蒲小明，林壁润，沈会芳，张景欣，黄宁.化学药剂增效配方对辣椒疫病的控制作用[J].广东农业科学,2014,41(9):104- |
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化学药剂增效配方对辣椒疫病的控制作用 |
| Control effect of chemical synergistic formulaon pepper phytophthora blight |
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| DOI： |
| 中文关键词: 辣椒疫病 共毒系数 悬浮剂 盆栽试验 |
| 英文关键词: pepper phytophthora blight co-toxicity coefficience suspension concentrates pot experiment |
| 基金项目:国家公益性行业（农业）科研专项（20100300）；广
东省自然科学基金（S2013010012424）；国家自然科学基金（3130
0118，81373320）；广东省国际合作项目（2012B050500014）；广州市
科技计划项目（12C14071616） |
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| 摘要点击次数: 1588 |
| 全文下载次数: 612 |
| 中文摘要: |
| 采用菌丝生长速率法测定了9 种化学药剂对辣椒疫病菌的毒力，其中烯酰吗啉（EC50=0.48 滋g/mL）和氟
吡菌胺（EC50=0.32 滋g/mL）的毒力最强。共毒系数测定结果表明，百菌清颐氟吡菌胺为1颐9 和烯酰吗啉颐氟吡菌胺为2颐8
时，表现出增效作用，分别配制成20%百窑氟悬浮剂和20%烯窑氟悬浮剂。盆栽试验结果表明，处理后10 d，20%烯窑氟
悬浮剂2 000 倍对辣椒疫病的防治效果在96%以上；20%百窑氟悬浮剂1 000 倍对辣椒疫病的防治效果为75%左右。
20%烯窑氟悬浮剂2 000 倍对辣椒疫病的防治效果与对照药剂50%烯酰吗啉可溶性粉剂1 000 倍液的防治效果相
当，显著高于68.75%银法利悬浮剂1 000 倍的防治效果。 |
| 英文摘要: |
| The toxicity of 9 fungicides against pepper phytophthora blight were tested with mycelium growth rate
method. The results indicated that the highest toxicity of fungicides were dimethomorph (EC50=0.48 滋g/mL) and fluopicolide
(EC50 =0.32g/mL). The synergisms were chosen by the method of co -toxicity coefficience, and the ratios were that
chlorothalonil /fluopicolide (1-9) and dimethomorph/fluopicolide (2-8). The 20% suspension concentrates (SC) were prepared
with best synergism ratio. After 10 d treatment, the pot experiment reuslts showed that the control effect of dimethomorph/
fluopicolide 20% SC diluted 2 000 times was up to 96%; the control effect of chlorothalonil/fluopicolide 20% SC diluted
1 000 times was 75%. Statistic analysis indicated that the control effect of dimethomorph/fluopicolide 20% SC diluted 2 000
times was equal to dimethomorph 50% SC diluted 1 000 times and higher than that of 68.75% Infinito SC diluted 1 000
times significantly. |
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