| 雷仲仁1,问锦曾1,谭正华1*,王音1,谢志庚2,李顺功2,吴福海2.绿僵菌油剂防治东亚飞蝗田间试验[J].植物保护,2003,29(1):17-19. |
| 绿僵菌油剂防治东亚飞蝗田间试验 |
| Field trial with Metarhizium oil liquid for controlling Locusta migratoria manilensis (Meyen) |
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| DOI： |
| 中文关键词: 有害生物生物防治 绿僵菌油剂 东亚飞蝗 防治 |
| 英文关键词:pest bio-control Metarhizium oil liquid Locusta migratoria manilensis (Meyen) control |
| 基金项目: |
| 雷仲仁1 问锦曾1 谭正华1* 王音1 谢志庚2 李顺功2 吴福海2 |
| 1.中国农业科学院植物保护研究所 北京100094;2.天津市大港区防蝗站 天津大港300270; *湖南农业大学实习学生; |
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| 中文摘要: |
| 20 0 2年在天津大港以绿僵菌LA06油剂防治东亚飞蝗进行了田间试验。绿僵菌分生孢子系在实验室采用常规双相产孢系统 ,在大米固体培养基上培养产生。油剂用V(大豆油 )∶V(煤油 ) =3∶7配制。试验区选用蝗蝻相对不易迁出迁入的高密度地带 ,3龄蝗蝻占 90%,成点片状密集分布。超低量喷雾 1hm2 喷施绿僵菌油剂1.5L ,含绿僵菌干粉48g ,其分生孢子含量为1.37×1012个。药效调查采用全区密度级别估测法调查试验区虫口密度变化 ,并以笼罩法试验作为旁证。结果表明 ,在施药后 6～9d蝗蝻种群急剧减少 ,第 18天虫口减退率达 81.1%。田间防治与笼罩试验结果一致 |
| 英文摘要: |
| For field trial, the conididia of strain LA06 were produced using a standard two-phase production system on rice and dried in a desiccator to a moisture content of 5%. Just prior to use, the conididia were formulated in kerosene/soybean oil and then transported to the field. Field trial for control of the locusts has been carried out in Dagang Tianjin in 2002. A single plot of about 5.6 hectare of nymphal bands which is separated from others by a river and a dried riverbed was sprayed using the oil formulation with 48 g (1.37×1012 conididia) in 1.5 litre/ha by the hand held ULV sprayers. The population declined 6-9 days and reduced by over 81 1% 18 days after spraying. These results were the same as the caged sampling method. |
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