3种喷雾助剂对螺虫乙酯和联苯菊酯防治金钗石斛菲盾蚧的增效作用.docx

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1、3种喷雾助剂对螺虫乙酯和联苯菊酯防治金钗石斛菲盾蚣的增效作用刘迎陈青梁晓伍春玲表1添加3种助剂后22.4%螺虫乙酯悬浮剂药液表面张力、叶面接触角和最大持留量的变化Tab. 1 Changes of surface tension, contact angle and maximum retention of spirotetramat 22.4%SC liquid after adding three adjuvants助剂Adjuvant质量浓度-Concentration/(mg L-1)表面张力Surface tension接触角Contact angle最大持留量Maximum ret

2、ention平均值Mean value/(mN m-1)变化率Rate ofchange/%平均值Mean value/0变化率Rate ofchange/%平均值Mean value/(mg cm-2)变化率Rate ofchange/%快速渗透剂T100030.H0.58-17.436.10.5e-25.43.110.11a23.850032.90 4加一 9.638.40.2d-20.63.080.25a22.825034.30.7c-5.939.70.3c-18.02.790.lllb11.0有机硅100026.20.3l-28.030.00.2i-37.93.070.2022.3DA

3、10150027.20.2h-25.432.50.1h-32.83.010.13lb19925031.30.2f-13.933.50.3:-30.72.850.23lb13.7植物油类助100029.10.3e-20.034.60.2f-28.43.260.28a30.0剂HZS50032.30。-11336.50.3e-24.63.13O.12B24.625033.40 2cd-8.338.10.4d-21.22.95O.15lb17.7药液对照3640.3b4840.2b2.51O.16b清水对照72.30.2a65.40.2a1.650.11c注：同列数据后不同小写字母表示差异显著(K0

4、.05)。Note Different lowercase letters in the same column show significant difference (P0.05).表2添加3种助剂后100 g/L联苯菊酯乳油药液表面张力、叶面接触角和最大持留量的变化Tab. 2 Changes of surface tension, contact angle and maximum retention of bifenthiin 100 g/L ECliquid after adding three adjuvants助剂Adjuvant质量浓度一Concentration/(mg L

5、-1)表面张力Surface tension接触角Contact angle最大持留量Maximum retention平均值Mean value/(mN m-1)变化率Rate ofchange/%平均值Mean value/0变化率Rate ofchange/%平均值Mean value/(mg-cm2)变化率Rate ofchange/%快速渗透剂T10003LX0.4 盘-5.727.70.5f-32.33.040.05a17.450032.60. lcd-3.730.90.2e一 24.42.910.16ab12.425032 80.3c一 3.037.80.2c-7.72 840

6、09ab9.7有机硅DA101100029 7O,3f-12.12O.3O.3h-50.42.960.19a14.250030.10.2f-10.825.60.5e-37.52.850.04ab9.92503O.3O.3f- 10.330.40.2e-25.62.810.17at,8.5植物油类助剂100031.3O.2e-7.526.70.5f-34.63.140.12a21.4HZS50032.002cde-5.230.40.3*-25.73.020.02B16.725032.3O.2cd-4.536.50.4d-10.82.880.10ab11.3药液对照33.80.4b40 90.5b

7、2.590 1清水对照72.30.2，65.40.2a1.650.11c注：同列不同小写字母表示差异显著(K0.05)。Note: Different lowercase letters in the same column show significant difference (P0 05).摘要：为探索添加喷雾助剂对螺虫乙酯和联苯菊酯防治石斛菲盾蛇的增效作用及机理，研究了 3种喷雾助剂快速渗透剂T、有机硅助剂DA101和植物油类助剂HZS对药液物理性状的影响和添加助剂前后药剂的室内毒力和田间防效。结果表明：3种助剂均可降低22.4%螺虫乙酯悬浮剂和100 g/L联苯菊酯乳油药液的表面张力

8、和叶面接触角，并增加了药液在金钗石斛叶片的最大持留量；添加3种喷雾助剂均提升了螺虫乙酯和联苯菊酯对石斛菲盾蛤若虫的室内毒力，其中快速渗透剂T对螺虫乙酯、植物油类助剂HZS对联苯菊酯的增效作用最强，增效比分别达34.4%和24. 3%；田间防效表明添加快速渗透剂T对螺虫乙酯、添加植物油类助剂HZS对联苯菊酯防治石斛菲盾蛤均有较好的增效作用，快速渗透剂T对螺虫乙酯的防效提高了 8. 2%22. 8%,植物油类助剂HZS对联苯菊酯的防效提高了 10.6%27.5也 综上，添加喷雾助剂对药剂防治石斛菲盾蛤具有明显的增效作用，生产实践中适宜推广应用。Key：喷雾助剂；螺虫乙酯;联苯菊酯;石斛菲盾蛤;增效

9、作用：S435. 672： AAbstract： To make clear the synergism and mechanisms of three sprayadjuvants on spirotetramat and bifenthrin against Phenacaspisdendrobii, the influence of three spray adjuvants (fast penetratingagent T, organosilicon additive DA101 and vegetable oil auxiliariesHZS) on physical proper

10、ties of pesticide liquid, the synergisticeffects on indoor virulence and field control effect wereinvestigated in this study. The results indicated that adding thethree spray adjuvants could reduce the surface tension, contactangle and also increase the retention of pesticide liquid ofspirotetramat

11、22. 4% SC and bifenthrin 100 g/L EC. Spray adjuvantscould increase the indoor virulence of spirotetramat and bifenthrin.Synergistic effect of adding fast penetrating agent T onspirotetramat and adding HZS on bifenthrin were better than that ofthe other two adjuvants and the synergism ratio was 34. 4

12、% and 24. 3%,respectively. Field experiments showed that the addition of fastpenetrating agent T had a good synergistic effect on spirotetramatfor controlling P. dendrobii in different concentrations and thesynergism ratio was between 8. 2%-22. 8%, as we11 as the synergismratio of HZS to bifenthrin

13、was between 10. 6%-27. 5%. So, adding sprayadjuvants on spirotetramat and bifenthrin have an obvious synergisticeffect for the control of P. dendrobii and this is suitable forpopularization and application in production practice.Keywords： spray adjuvant； spirotetramat； bifenthrin； Phenacaspisdendrob

14、ii Kuwana； synergismDOI： 10. 3969/j. issn. 1000-2561. 2021. 12. 026金叙石斛(Dendrobium nobile Lindl),又名吊兰花、扁金钗，因其特殊的生存环境和卓越的滋补功效具有较高的药用价值1,金钗石斛以茎入药，其药用功效在神农本草经和本草纲目中均有记载，同时金钗石斛也属于一种兰科重要的观赏花卉植物。金钗石斛自然条件下对生长环境要求十分苛刻，生长缓慢，加之过度的采掘和利用，野生金钗石斛已近乎濒危。近年来，组培快繁技术和人工仿野生栽培技术的快速发展有效解决了这一药用植物的市场需求问题海南温湿度和环境气候适宜，有天然的发展药用石斛的生长环境。海口羊山地区依托独特的生态环境和丰富的火山石资源，仿野生金钗石斛种植面积逐年增加，在实现精准扶贫的同时，也打造了海南健康产业新名片。石斛菲盾妹(Phenacaspis dendrobii Kuwana)属同翅目盾妹科，是金钗石斛上一种重要的害