Department of Management, Technology and Economics, Agricultural Economics and Policy, ETH Zürich, Zurich, Switzerland.
Strategic Research Division Plant Protection, Agroscope, Wädenswil, Switzerland.
Pest Manag Sci. 2019 Oct;75(10):2820-2829. doi: 10.1002/ps.5397. Epub 2019 Apr 1.
In 2017, we investigated measures adopted by Swiss grape growers in response to Drosophila suzukii by conducting a survey presenting information obtained from 372 growers on 1708 vineyards.
We found the strategies adopted to be heterogeneous and largely dependent on grape variety (table vs. wine grapes). We identified six clusters of control methods to combat D. suzukii, the most important of which involves using a combination of control methods such as insecticides, mass trapping and sanitation measures, especially pinching of foliage or mowing and mulching. Grape growers in our sample rely primarily on information from public institutions or other growers and the majority plan to continue taking sanitation measures to combat D. suzukii.
Our results suggest that strategies adopted in Switzerland differ widely, not only between growers, but also at a vineyard and regional level. Thus, policies and extension services should be targeted (e.g. to varieties and regions) and tailored to types of growers. We find that preventive measures are important when combatting D. suzukii and can reduce post-infestation measures such as pesticide usage. In our sample, biological insecticides, such as kaolin, played a vital role in the control of D. suzukii and merit further support. © 2019 Society of Chemical Industry.
2017 年，我们通过对 372 位种植者的 1708 个葡萄园的信息调查，研究了瑞士葡萄种植者针对果蝇采取的措施。
我们发现采用的策略具有异质性，且在很大程度上取决于葡萄品种（餐桌葡萄与酿酒葡萄）。我们确定了 6 种防治果蝇的控制方法群，其中最重要的是结合使用杀虫剂、大量诱捕和卫生措施，尤其是掐叶或修剪和覆盖。我们调查样本中的葡萄种植者主要依赖于公共机构或其他种植者的信息，大多数人计划继续采取卫生措施来防治果蝇。
我们的研究结果表明，瑞士采用的策略差异很大，不仅在种植者之间，而且在葡萄园和地区之间都存在差异。因此，政策和推广服务应该有针对性（例如针对品种和地区），并针对不同类型的种植者进行调整。我们发现，在防治果蝇时，预防措施很重要，可以减少虫害后的措施，如使用农药。在我们的样本中，生物杀虫剂，如高岭土，在防治果蝇方面发挥了重要作用，值得进一步支持。© 2019 英国化学学会。
