Anisum Essential Oil as a Natural Bio-molluscicide for Slug Control

茴香精油作为天然生物杀软体动物剂，用于控制蛞蝓

• 批准号: BB/X012018/1
• 负责人: Chedly Tizaoui
• 金额: $ 4.16万
• 依托单位: Swansea University
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2023
• 资助国家: 英国
• 起止时间: 2023 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=BB%2FX012018%2F1
• 关键词: Anisum; Essential; Oil; Natural; Bio

Terrestrial molluscs (slugs, snails) feed on a wide range of crops, causing considerable crop losses worldwide. They can devastate crops in a short period of time. Furthermore, feeding damage increases crop susceptibility to pathogens. Both are heavily attacked by slugs. It is estimated that the total annual cost to the UK industry from not controlling slugs in arable crops is over £100 million. Metaldehyde was the main pesticide used to control slugs in arable crops in the UK. It is often detected above the drinking water standard for pesticides. The withdrawal of metaldehyde and several other molluscicides has promoted an urgent search for safe alternatives. An essential oil from anisum seeds shows promise as a benign, sustainable molluscicide. This project focuses on: (1) recovery of the bioactive fraction of oil extracted using an inexpensive microwave-based method and (2) evaluating different formulations of the bioactive fraction. At least two formulations will be evaluated for delivery in drip irrigation, conventional sprayers and drilled during seed sowing or planting. Particular attention will be given to encapsulation of the AEO in inexpensive, proven matrices such as alginate, chitosan and cyclodextrin. Initial trials will be conducted in glasshouse studies with the optimised formulations and carefully selected controls being tested in experimental field trials, conducted on two important arable crops (oilseed rape, wheat). The commercial potential of the products for use as contact molluscicides, repellents and antifeedants will be evaluated by the industry partner, Crop IQ Technology, in field trials which determine optimum application rates and frequency of application. Development of innovative molluscicides will be of immense benefit to growers in both the agricultural and horticultural sectors. Unlike current products, AEO is short lived, therefore, there should be no residues but this will be verified by GC-MS analysis of plant tissue and produce. This six month study will provide CropIQ the opportunity to determine if the formulations need improvement and for development of business plan with a clear route to market.

陆生软体动物（蛞蝓、蜗牛）以多种作物为食，在世界范围内造成了相当大的作物损失。它们可以在短时间内摧毁庄稼。此外，取食损害增加了作物对病原体的易感性。它们都遭到了蛞蝓的猛烈攻击。据估计，由于无法控制可耕种作物中的蛞蝓，英国工业每年的总成本超过1亿英镑。在英国，二乙醛是用于控制耕地作物中鼻涕虫的主要杀虫剂。它经常被检测出超过饮用水标准的农药。二乙醛和其他几种杀螺剂的退出促使人们迫切地寻找安全的替代品。从茴香种子中提取的精油有望成为一种良性的、可持续的杀软体动物剂。该项目的重点是：(1)利用廉价的微波方法回收提取的油的生物活性部分；(2)评估不同配方的生物活性部分。将评估至少两种配方，以滴灌、传统喷雾器和播种或种植时钻孔的方式施用。将特别注意将AEO包封在廉价的、经过验证的基质中，如海藻酸盐、壳聚糖和环糊精。初步试验将在温室研究中进行，在两种重要的可耕地作物（油菜、小麦）上进行的试验性田间试验中对优化配方和精心选择的对照进行测试。该产品的商业潜力将由行业合作伙伴Crop IQ Technology在田间试验中评估，以确定最佳的施用率和施用频率。创新杀螺剂的开发将对农业和园艺部门的种植者产生巨大的好处。与目前的产品不同，AEO的寿命很短，因此应该没有残留物，但这将通过植物组织和产品的GC-MS分析来验证。这项为期六个月的研究将为CropIQ提供机会，以确定配方是否需要改进，并制定具有明确市场路线的商业计划。