The aim of this study was to assess the effectiveness of several treatments to control the spread of PVY (Potato virus Y) in seed potato crops. Field trials were conducted over a number of years in the Ardenne region of Belgium. Chemical treatments, including sprays of mineral oil, insecticide and a mix of them, were tested along with other treatments such as vegetal oil, plant slurries and Siliforce®. Agronomic treatments such as straw mulching and early vine killing were also evaluated. Trials using the same experimental design were conducted for 6 years but with different protection strategies each year. The key lessons emerging from this research are the following: (i) the use of mineral oil is an efficient way to protect seed potato crops against the spread of PVY, although the protection is incomplete; (ii) insecticides do not work (especially those of the pyrethroid group), although systemic insecticides provide added protection if mixed with mineral oil when activity of winged aphids is high; (iii) vegetal oil (rapeseed oil) protects the crop but at a lower level than mineral oil; (iv) slurries and Siliforce® do not provide control of PVY; (v) early killing of potato vines reduces PVY incidence in seed tuber lots; (vi) straw mulching increases the protection level in crops treated with mineral oil and may reduce the number of mineral oil sprays required.

这项研究的目的是评估几种控制PVY（马铃薯Y病毒）传播的有效性。）播种马铃薯。在比利时的Ardenne地区进行了多年的现场试验。测试了化学处理方法，包括矿物油，杀虫剂及其混合物的喷雾，以及诸如植物油，植物泥浆和Siliforce®等其他处理方法。还评估了农艺处理方法，例如秸秆覆盖和早期葡萄藤杀灭。使用相同实验设计的试验进行了6年，但每年采用不同的保护策略。这项研究得出的主要经验教训如下：（i）使用矿物油是一种保护马铃薯种苗免受PVY传播的有效方法，尽管这种保护还不够完善；（ii）杀虫剂不起作用（尤其是拟除虫菊酯类的杀虫剂），当翅性蚜虫的活性较高时，如果与矿物油混合使用，内吸性杀虫剂可提供额外的保护；（iii）植物油（菜籽油）保护作物，但其含量低于矿物油；（iv）浆料和Siliforce®不提供对PVY的控制；（v）尽早杀死马铃薯藤可以减少种子块茎中PVY的发生；（vi）秸秆覆盖增加了用矿物油处理过的农作物的保护水平，并可能减少了所需的矿物油喷雾剂的数量。