五种喷雾助剂对240 g/L螺螨酯悬浮剂和15%哒螨灵乳油防治木瓜秀粉蚧的增效作用
投稿时间:2019-03-29      点此下载全文 HTML
引用本文:杨石有,张蕊,张贺,等.五种喷雾助剂对240 g/L螺螨酯悬浮剂和15%哒螨灵乳油防治木瓜秀粉蚧的增效作用[J].农药学学报,2019,21(4):531-537.
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作者单位E-mail
杨石有 海南大学 林学院, 海口 570228
2. 海南大学 热带作物学院, 海口 570228 
 
张蕊 仲恺农业工程学院 农业与生物学院, 广州 510225
海南大学 林学院, 海口 570228
2. 海南大学 热带作物学院, 海口 570228 
 
张贺 中国热带农业科学院 环境与植物保护研究所, 海口 571101  
王红刚 海南大学 热带作物学院, 海口 570228  
王洪星 海南大学 林学院, 海口 570228
2. 海南大学 热带作物学院, 海口 570228 
 
陈银华 海南大学 热带作物学院, 海口 570228 yhchen@hainanu.edu.cn 
基金项目:现代农业产业技术体系建设专项资金(CARS-11-HNCYH)
中文摘要:为探索喷雾助剂对药液物理性状的影响及防治木瓜秀粉蚧的增效作用,室内条件下研究了添加5种喷雾助剂[芦荟精油、有机硅助剂silwet408、渗透剂JFC-2、氮酮和增效醚(PBO)]对240 g/L螺螨酯悬浮剂和15%哒螨灵乳油表面张力、扩展直径以及最大持留量的影响,并测定了添加喷雾助剂对2种供试药剂防治木瓜秀粉蚧Paracoccus marginatus的增效作用。结果表明:5种助剂均能显著降低药液的表面张力、增大扩展直径并提高药液持留量;室内毒力测定结果表明,5种助剂对240 g/L螺螨酯悬浮剂和15%哒螨灵乳油的毒力具有不同程度的增效作用,增效比分别达5.1%~26.1%和22.7%~41.8%,其中JFC-2和PBO的增效作用较为明显。田间试验结果表明,JFC-2和PBO可提高2种供试药液对木瓜秀粉蚧的田间防效,尤其对高浓度药液的增效作用更为明显,其中JFC-2对240 g/L螺螨酯悬浮剂防效的增效比在10.3%~24.6%之间,增效醚对15%哒螨灵乳油防效的增效比在12.1%~28.9%之间。
中文关键词:喷雾助剂  渗透剂  增效醚  螺螨酯  哒螨灵  木瓜秀粉蚧  增效作用  田间防效
 
Synergistic effect of five spray adjuvants on spirodiclofen 240 g/L suspension concentrate and pyridaben 15% emulsifiable concentrate for the control of Paracoccus marginatus
Abstract:The effects of spray adjuvants on physical properties of two insecticides and the synergistic effects against Paracoccus marginatus were investigated in this study. The effects of surface tension, expanded diameter, maximum retention on spirodiclofen 240 g/L suspension concentrate(SC) and pyridaben 15% emulsifiable concentrate(EC) were determined under indoor conditions after the addition of five spray adjuvants (aloe essential oil, silicone silwet408, JFC-2, azone and PBO). In addition, the synergistic effect between the adjuvants and two insecticides were evaluated. The results indicated that the spray adjuvants can significantly reduce the surface tension, increase the expansion diameter, retention and indoor virulence. Spray adjuvants can increase the indoor virulence of spirodiclofen 240 g/L SC and pyridaben 15% EC by 5.1%-26.1% and 22.7%-41.8%, respectively. JFC-2 and PBO were more effective for the increase of the synergistic effects with spirodiclofen 240 g/L SC and pyridaben 15% EC. Field experiments showed that JFC-2 and PBO improved the field control effect of two insecticides in different concentrations against P. marginatus, especially for that in high concentrations. The synergistic effect between JFC-2 and spirodiclofen 240 g/L SC was 10.3%-24.6%, and that between PBO and pyridaben 15% EC was 12.1%-28.9%.
Key words:spray adjuvant  JFC-2  PBO  spirodiclofen  pyridaben  Paracoccus marginatus  synergism  field control
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