Efficacy of mineral oil combined with insecticides for the control of aphid virus vectors to reduce potato virus Y infections in seed potatoes (Solanum tuberosum)
Efficacy of mineral oil combined with insecticides for the control of aphid virus vectors to reduce potato virus Y infections in seed potatoes (Solanum tuberosum)
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矿物油与杀虫剂联合控制蚜虫病毒载体以减少种薯（Solanum tuberosum）马铃薯病毒 Y 感染的功效
DOI：
10.1080/09064710.2011.583936
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发表时间：
2012
期刊：
影响因子：
--
通讯作者：
S. Nielsen
中科院分区：
文献类型：
--
作者：
L. M. Hansen;S. Nielsen
摘要蚜虫是植物病毒的主要传播媒介。马铃薯Y病毒（PVY）是影响丹麦马铃薯作物的最重要的蚜传病毒。由于种薯种植策略的改变，丹麦的种薯区正从平均温度较低的地区向平均温度较高的地区转变。这意味着蚜虫可能更早地侵染马铃薯作物，并且蚜虫的种群发展可能更快，因此PVY可能更容易在种薯作物中流行。为了减少PVY的传播，用矿物油和杀虫剂的组合进行了为期3年的实验。在2005年和2007年，当蚜虫数量非常高时，几乎所有的植物都感染了PVY。在2006年，蚜虫数量较少，感染植物的比例较小，并且发现在矿物油处理的地块中PVY发病率较低的趋势，但超过8%的阈值。即使在地块中，系统的烟碱类化合物的应用和非常少的蚜虫被记录，没有显着减少PVY的侵染水平被发现。本实验表明，矿物油和杀虫剂施加到马铃薯作物，每周6周的时间，以防止蚜虫传播的PVY没有显着降低马铃薯中的PVY侵染水平。
Abstract Aphids are major vectors of plant viruses. Potato virus Y (PVY) is the most important aphid-transmitted virus affecting potato crops in Denmark. Because of a changed seed potato growing strategy, the seed potato area in Denmark is changing from regions with a low average temperature to regions with a higher average temperature. This means that the aphids may infest the potato crops earlier and the population development of the aphids may be faster, and consequently PVY may more easily become epidemic in seed potato crops. With a view to reducing the spread of PVY a 3-year experiment was carried out with a combination of mineral oil and insecticides. In 2005 and 2007 when a very high number of aphids were present, nearly all plants were infected with PVY. In 2006 with a lower number of aphids a smaller proportion of the plants were infected, and a tendency to a lower PVY incidence in mineral-oil treated plots was found, but more than the 8% threshold value. Even in plots where systemic neonicotinoids were applied and very few aphids were recorded, no significant reduction in infestation level of PVY was found. The present experiment shows that mineral oil and insecticides applied to potato crops each week for a 6-week period as protection against aphid transmission of PVY did not significantly reduce the level of PVY infestations in potatoes.