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董文统1, 刘君昂1*, 周国英1, 张茜1,2, 何苑皞1, 苏圣淞1.降香黄檀炭疽病药剂筛选及林间防效[J].植物保护,2017,43(3):222-227.

降香黄檀炭疽病药剂筛选及林间防效

The screening and field efficacy of effective fungicides against anthracnose of Dalbergia odorifera

投稿时间：2016-06-23 修订日期：2016-08-15

DOI：

中文关键词: 降香黄檀炭疽病药剂筛选林间防效

英文关键词:Dalbergia odorifera anthracnose pesticide screening field efficacy

基金项目:国家林业公益性行业科研专项(201304402)

作者	单位
董文统1, 刘君昂1*, 周国英1, 张茜1,2, 何苑皞1, 苏圣淞1	1. 中南林业科技大学,森林有害生物防控湖南省重点实验室经济林培育与保护省部共建教育部重点实验室, 长沙 410004 2. 湖南汽车工程职业学院, 株洲 412001

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中文摘要:

为了筛选出防治降香黄檀炭疽病的环境友好型药剂,本文测定了10种杀菌剂的室内毒力,并从中筛选出毒力较强的药剂进行林间防效试验。结果表明:25%丙环唑EC,60%唑醚·代森联WG和40%氟硅唑EC对降香黄檀炭疽病菌的毒力较强,其EC50分别为0.12,0.15和1.12 mg/L。其他供试药剂的EC50分别为:75%百菌清WP 231.42 mg/L，10%苯醚甲环唑WG 3.60 mg/L，80%醚菌酯WG 1.58 mg/L，70%甲基硫菌灵WP 4.51 mg/L，3%中生菌素WP 19.36 mg/L，80%代森锰锌WP 79.76 mg/L，80%多菌灵WP 11.47 mg/L。考虑到氟硅唑、唑醚·代森联价格较高,建议将这两种药剂使用在降香黄檀苗木炭疽病的防治上。人工林炭疽病的防治采用25%丙环唑EC、80%醚菌酯WG、70%甲基硫菌灵WP和3%中生菌素WP,每隔15 d依次施用,林间防治效果达到71.53%,明显高于其他防治方法。因此,在人工林降香黄檀炭疽病的防治中采用这4种药剂每隔15 d依次施用可以有效控制降香黄檀炭疽病的暴发。喷雾时间应选择在阴天或晴天早晨露水干后8:00-10:00或者15:00-17:00。

英文摘要:

In order to screen pesticides against anthracnose of Dalbergia odorifera, the indoor toxicity and the field control efficacy of ten fungicides were investigated. 25% propiconazole EC, 60% pyraclostrobin·metiram WG and 40% flusilazole EC showed the strong virulence against anthracnose of D.odorifera with EC50 values of 0.12, 0.15 and 1.12 mg/L, respectively. The EC50 of 25% chlorothalonil EC was 231.42 mg/L, 10% difenoconazole WG was 3.60 mg/L, 80% kresoximmethyl WG was 1.58 mg/L, 70% thiophanatemethyl WP was 4.51 mg/L, 3% zhongshengmycin WP was 19.36 mg/L, 80% mancozeb WP was 79.76 mg/L, 80% carbendazim WP was 11.47 mg/L. Of all the tested pesticides, 40% flusilazole EC and 60% pyraclostrobin·metiram were recommended to control seedling anthracnose of D. odorifera because of their higher price. The 25% propiconazole EC, 80% kresoximmethyl WG, 70% thiophanatemethyl and 3% zhongshengmycin WP were recommended for prevention and control of anthracnose on plantation of D.odorifera. When these four pesticides were applied in turn every 15 days, the control effect reached 71.53%, which was significantly higher than that of other control methods. It should be sprayed between 8:00-10:00 am on cloudy or sunny day, or between 15:00-17:00.

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