| 蒲小明1，沈会芳1，陈永明2，张景欣1，邱妙文2，孙大元1，张雷斌1，林壁润1.广东烟叶主要真菌病害无公害化学防治药剂筛选试验[J].广东农业科学,2016,43(11):97-102 |
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广东烟叶主要真菌病害无公害化学防治药剂筛选试验 |
| Screening and test of non-polluted chemicals for controlling main tobacco fungal diseases in Guangdong |
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| DOI：10.16768/j.issn.1004-874X.2016.11.015 |
| 中文关键词: 烟草黑胫病 烟草赤星病 化学防治 室内毒力 药效试验 |
| 英文关键词: tobacco black shank tobacco brown spot chemical control laboratory bioassay flied experiment |
| 基金项目:广东省烟草专卖局科技专项（201309，201544000024059）；广州市科技计划项目（2014J4500034）；
广东省农业科学院院长基金（201515） |
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| 中文摘要: |
| 烟草黑胫病和赤星病已成为广东烟叶生产的重要真菌病害，开展其无公害化学药剂筛选和应
用研究势在必行。以烟草黑胫病菌和赤星病菌为研究对象，室内毒力测定结果表明：烯酰吗啉和氟吡菌胺
的对烟草黑胫病菌的毒力最高（EC50 分别为0.56 μg/mL 和0.25 μg/mL），苯酰菌胺对烟草黑胫病菌的毒力
次之（EC50 为1.14 μg/mL）；咪鲜胺对烟草赤星病菌的毒力最高（EC50 为0.26 μg/mL），75% 肟菌· 戊唑
醇水分散粒剂对烟草赤星病菌的毒力较高（EC50 为2.66 μg/mL）。田间试验结果表明：处理后15 d，推荐
药剂50% 烯酰吗啉可湿性粉剂1 500 倍和80% 苯酰菌胺可溶性粉剂2 500 倍轮换施用防治烟草黑胫病的效
果为87.23%；推荐药剂45% 咪鲜胺水乳剂2 000 倍和75% 肟菌· 戊唑醇水分散粒剂2 500 倍轮换施用对
烟草赤星病的效果为82.53%；均显著高于对照药剂的防治效果。研究结果为烟叶真菌病害化学防控提供了
技术指导，促进了烟叶绿色安全生产，保证了烟叶产量和品质。 |
| 英文摘要: |
| The tobacco black shank and brown spot have been become the important fungal diseases in
Guangdong，so it is necessary to study the screening and application of non-polluted chemicals. In this paper，
the research objects were tobacco black shank and brown spot. The results of laboratory bioassay indicated that the
toxicities of dimethomorph and fluopicolide against Phytophtora parasitica var. nicotianae were the highest，and
the values of median effective concentration（ EC50） were 0.56μg/mL and 0.25μg/mL respectively；the toxicity of
Phenylamide was lower than that of dimethomorph and fluopicolide，and the EC50 was 1.14μg/mL. The toxicity of
prochloraz amines against Alternaria alternata was the highest of all，and the EC50 was 0.26μg/mL；the toxicity
of 75% trifloxystrobin·tebuconazole water dispersible granule（ WDG） was lower than that of prochloraz amines，and the EC50 was 2.66μg/mL. The results of flied experiments showed of. after a 15 d-treatment，the control effect
of rotation application of 50% dimethomorph wettable powder（ WP） 1 500× and 80% Phenylamide WP 1 500
× against tobacco black shank was 87.23%；the control effect of rotation application of 45% prochloraz amines
emulsion in water（ EW） 2 000× and 75% trifloxystrobin·tebuconazole WDG 2 500× against tobacco brown spot
was 82.53%；the values of control effect of recommended agents were higher than that of contrast agents（ P < 0.05）.
The research provided technical guidance for chemical control of tobacco fungal diseases，promoted the green safe
production of tobacco，and ensured the yield and quality of tobacco. |
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