【摘要】 对2年生三七进行了蓟马危害症状调查及药剂防治试验。结果显示,危害夹马石村2年生三七的蓟马主要是烟蓟马,主要危害2年生三七的叶片,导致叶片发黄、受害组织枯死或部分穿孔。对烟蓟马的田间药效试验结果表明,20%丁硫克百威、全红速效性好、持效期长。药后10 d调查,其防效分别达到99.5%和99.37%;其次是金亮瓜、40%速扑杀,防效分别达98.49%和97.59%。在三七叶片烟蓟马的化学防治中可以交替使用上述4种农药。更多还原

【Abstract】 The damage status and preventive insecticide experiment of Thrips were studied using two-year panax notoginseng at Jiamashi village,Matang town,Wenshan county.The results showed that the type of thrips was T.tabaci which infects panax notoginseng at Jiamashi village.It harms the leaves of two-year panax notoginseng.The symptoms include yellow leaves,dead tissuea,nd holes at leaves.The insecticide field experiment on T.tabaci showed that 20 % Carbosulfan and all red took effect faster and last longer time.The efficiencies were 99.5 % and 99.37 % respectively 10 days after the insecti-cides were used.Golden and 40 % Supracide also showed promising results.The efficiencies were 98.49 % and 97.59 % re-spectively 10 days after the insecticides were use It is suggested that four insecticides mentioned above should be alternatively applied on the insecticide prevention of T.tabaci for Panax notoginseng leaves.更多还原