Formulation of Matrine Oil-Based Suspension Concentrate for Improving the Wetting of Droplets and Spraying Performance
文献类型： 外文期刊
作者： Li, Meng 1 ; Wang, Zhen 1 ; Meng, Huanwen 1 ; Dong, Baozhu 1 ; Deng, Xile 2 ; Zhou, Hongyou 1 ;
作者机构： 1.Inner Mongolia Agr Univ, Coll Hort & Plant Protect, Hohhot 010020, Peoples R China
2.Hunan Acad Agr Sci, Hunan Agr Biotechnol Res Inst, State Key Lab Hybrid Rice Biol & Control Weeds, 2 Yuanda Rd, Changsha 410125, Peoples R China
关键词： matrine; oil-based suspension concentrate; emulsifier; formulation; wettability; spray performance
期刊名称：AGRONOMY-BASEL （ 影响因子：3.7； 五年影响因子：4.0 ）
ISSN：
年卷期： 2023 年 13 卷 7 期
页码：
收录情况： SCI
摘要： Matrine is an efficient, low-toxicity, and environmentally friendly botanical pesticide; however, it is mainly applied as a soluble concentrate (SL) with a limited utilization rate that is unsuitable for ultra-low-volume spraying and unmanned aerial vehicles. Therefore, a matrine formulation (such as an oil-based suspension concentrate, OD) is more effective. In this study, matrine ODs were prepared with three kinds of emulsifiers (VO/02N, VO/03, and VO/01). The storage stability, suspensibility, viscosity, surface tension, contact angle, droplet density, fraction of coverage, maximum retention, indoor control, effect of adhesion tension, and adhesion work of matrine ODs were studied. All three types of matrine ODs had favorable stability, and the wetting and spraying performance of the matrine ODs were more effective than those of the matrine SLs. Among the three types of matrine ODs, the viscosity, wettability, spray performance, and maximum retention of the suspension made with emulsifier VO/03 were superior to those of the other two emulsifiers, and they were more effective in controlling Spodoptera frugiperda. Increasing the solution concentration improved the spreading velocity of the droplets on the solid surface and the wettability. The matrine OD prepared from emulsifier VO/03 had the most effective wettability and spraying properties, and it can be used for ultra-low-volume spraying and aerial application. This study offers new insights into the efficient use of plant-based pesticides.
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