Farm Business Survey, School of Natural and Environmental Sciences, Newcastle University, Newcastle upon Tyne, UK.
School of Natural and Environmental Sciences, Newcastle University, Newcastle upon Tyne, UK.
Pest Manag Sci. 2019 Jan;75(1):125-133. doi: 10.1002/ps.5189. Epub 2018 Oct 9.
Neonicotinoid seed dressings on oilseed rape were banned in the European Union (EU) from December 2013. A survey of > 200 farms was conducted in England in the 2014/15 and 2015/16 seasons to assess the impact of the ban on changes in crop area, crop losses to cabbage stem flea beetle (CSFB), insecticide use and the economics of oilseed rape production.
The area of oilseed rape grown fell in both seasons, with CSFB identified as the third most important reason for the decrease. Crop losses to CSFB were 3% and 5% in the respective seasons, with clear variation by county. There were clear differences in the crop area treated (1.14 vs 0.77 million ha) and the number of insecticide applications per crop (2.0 vs 1.4) to combat CSFB in 2014/15 and 2015/16, respectively. Within the derogation area counties there was a clear reduction in the number of applications per crop when neonicotinoid-treated vs non-treated seed was used (1.0 vs 1.9), respectively.
Increasing resistance to pyrethroid insecticides in combination with the neonicotinoid seed dressing ban is likely to have significant impacts on the viability of growing oilseed rape in England particularly where CSFB activity/risk is high. © 2018 Society of Chemical Industry.
自 2013 年 12 月起，欧盟已禁止在油菜籽上使用新烟碱类种子处理剂。2014/15 和 2015/16 季节，在英格兰对超过 200 个农场进行了一项调查，以评估该禁令对作物面积变化、小菜蛾（CSFB）造成的作物损失、杀虫剂使用情况和油菜籽生产的经济影响。
两个季节的油菜籽种植面积均有所下降，CSFB 被确定为下降的第三个主要原因。CSFB 造成的作物损失分别为 3%和 5%，各县差异明显。防治 CSFB 的作物处理面积（分别为 114 万和 77 万公顷）和每茬作物的杀虫剂使用次数（分别为 2.0 和 1.4）存在明显差异。在豁免地区，使用新烟碱类处理种子与未处理种子相比，每茬作物的施药次数明显减少（分别为 1.0 和 1.9）。
与新烟碱类种子处理剂禁令相结合，拟除虫菊酯类杀虫剂抗性的增加可能会对英格兰油菜籽种植的可行性产生重大影响，特别是在小菜蛾活动/风险较高的地区。 © 2018 英国化学工业协会。
