农达对水葫芦象甲的影响

农达对水葫芦象甲的影响

丁建清;王韧;付卫东;陈志群

中国农业科学院生物防治研究所

收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:1998-11-08 发布日期:1998-11-08

EFFECTS OF ROUNDUP ON THE MORTALITY OF EGGS,LARVAE AND ADULTS OF NEOCHETINA EICHHORNIAE

DING Jian-qing;WANG Ren;FU Wei-dong;CHEN Zhi-qun

Institute of Biological Control,CAAS,Beijing 100081

Received:1900-01-01 Revised:1900-01-01 Online:1998-11-08 Published:1998-11-08

摘要/Abstract

摘要：

用４１％农达加水分别稀释３０、１００、３００、１０００和３０００倍，在室内测试了对水葫芦象甲的影响。结果表明，象甲卵和初孵幼虫直接接触药液对孵化率和化蛹率没有明显的影响。将药液直接喷施于成虫体表后再饲喂新鲜健康的叶片对象甲存活没有明显的影响。用不同浓度药液处理的叶片饲喂象甲成虫１月后，存活率分别为１０．０％、４５．０％、４２．５％、６６．７％和７７．５％，对照为７２．５％。室外种群动态试验发现，用１００倍以下药液处理有象甲成虫和幼虫的水葫芦小区３个月后，水葫芦和象甲全部死亡；而用３００倍以上农达处理的小区内象甲仍保持一定的种群数量。本项研究表明低浓度农达对象甲比较安全，可与象甲配合控制水葫芦。

Abstract:

The effects of Roundup on the mortality of the water hyacinth weevil, Neochetina eichhorniae were tested in the laboratory. Results showed that eggs and larvae of the weevil were not effected by contacting with Roundup at various concentrations from 0.14mg/ml to 13.67mg/ml. No marked effect was noted when adult weevils were sprayed with Roundup then reared on fresh clean water hyacinth leaves, but when reared on leaves treated with Roundup, mortalities increased with increase of concentration. Field plot tests showed that 0.14mg/ml Roundup spray was safe to the weevils, so Roundup at lower concentration is considered compatible with the water hyacinth weevil in biocontrol program.

丁建清;王韧;付卫东;陈志群 . 农达对水葫芦象甲的影响 [J]. , DOI: .

DING Jian-qing;WANG Ren;FU Wei-dong;CHEN Zhi-qun

. EFFECTS OF ROUNDUP ON THE MORTALITY OF EGGS,LARVAE AND ADULTS OF NEOCHETINA EICHHORNIAE[J]. , DOI: .