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Wetting and adhesion behavior on apple tree leaf surface by adding different surfactants

文献类型： 外文期刊

作者： Gao, Yue 1 ; Lu, Junjiao 1 ; Zhang, Pengjiu 1 ; Shi, Gaochuan 2 ; Li, Ying 3 ; Zhao, Jinyu 4 ; Liu, Zhongfang 1 ; Yang, J 1 ;

作者机构： 1.Shanxi Acad Agr Sci, Inst Plant Protect, Lab Integrated Pest Management Insect, 81 Longcheng St, Taiyuan 030031, Shanxi, Peoples R China

2.Shanxi Acad Agr Sci, Inst Cotton Res, Yuncheng 044000, Shanxi, Peoples R China

3.Shanxi Acad Agr Sci, Taiyuan 030031, Shanxi, Peoples R China

4.Shanxi Acad Agr Sci, Inst Plant Protect, Taiyuan 030031, Shanxi, Peoples R China

5.China Agr Univ, Coll Sci, Beijing 100094, Peoples R China

关键词： Surfactants; Surface tension; Contact angle; Work of adhesion; Beta-cyfluthrin

期刊名称：COLLOIDS AND SURFACES B-BIOINTERFACES （ 影响因子：5.268； 五年影响因子：4.957 ）

ISSN： 0927-7765

年卷期： 2020 年 187 卷

页码：

收录情况： SCI

摘要： Objective: This study was conducted to investigate the wetting behavior of different surfactant solutions on the leaf surfaces of apple during the fruit formation stage. Methods: Five surfactants, including C12E5, Tween-20, Triton X-100, DTAB, and SDS were evaluated in this study. The contact angle, surface tension, adhesion tension, work of adhesion, and solid-liquid interface tension of droplets on the leaf surface were determined by the drop method. Results: The results showed that the nonionic surfactants C12E5 and Triton X-100 had better wetting effects than other surfactants. Moreover, when the concentration of C12E5 and Triton X-100 was 1x10(-3) mol/L, the leaves reached a completely wet state. Toxicity measurement showed that the incubation rate of Carposina niponensis eggs decreased gradually with increasing content of C12E5 or Triton X-100. Additionally, field efficacy analysis showed that adding C12E5 or Triton X-100 significantly improved the beta-cyfluthrin 3% water emulsion (EW) against C. niponensis. Conclusions: These results indicate that the surfactants C12E5 and Triton X-100 can significantly improve pesticide application, which will be helpful for reducing pesticide use and developing new pesticides.

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