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)

作　　者：雷仲仁[1] 问锦曾[1] 谭正华[1] 王音[1] 谢志庚 李顺功 吴福海 

机构地区：[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

出　　处：《植物保护》2003年第1期17-19,共3页Plant Protection

基　　金：科技部公益研究专项资助项目 (3 40 0 7)

摘　　要：20 0 2年在天津大港以绿僵菌LA0 6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 4 8g ,其分生孢子含量为 1 37× 10 12 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%。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 (1.37×10 12 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.

关 键 词：绿僵菌油剂 防治 东亚飞蝗 田间试验 

分 类 号：S433.2[农业科学—农业昆虫与害虫防治]