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Early risk of late blight

机译：早疫病的早期风险

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Late cereal drillings, late spring, late potato planting and all the signs are that this could also be a year of late blight. Last season the highest level of late blight (Phytophthora infestans) infection for some years was seen in potato crops. Some growers have had to abandon crops that they were unable to harvest and surviving tubers are beginning to emerge well in advance of this year's crop. Blight can survive over winter on infected tubers and these volunteers will provide a major source ofinfection this spring, warns BPC agronomist Dr Rob Clayton. With such a high level of inoculum it is likely that blight will kick off early. Volunteer control is always an important part of an anti-blight strategy and applications of glyphosate will provide some control of emerging plants. For growers looking longer term at volunteer control, BPC-funded research has shown that glyphosate will reduce the number of volunteers in future crops, but needs to be applied later in the season to have this effect. In the meantime some form of blight control on the lost crops is essential. Where unharvested crops have been put into set-aside, growers can still take action.
机译：谷物播种晚，春季晚，马铃薯播种晚，所有迹象都表明今年也可能是晚疫病的一年。上个季节在马铃薯作物中发现了多年以来晚疫病（疫霉菌）感染的最高水平。一些种植者不得不放弃他们无法收割的农作物，幸存的块茎在今年的农作物生长之前就开始出现。 BPC农艺师Rob Clayton博士警告说，枯萎病可以在受感染的块茎上过冬，这些志愿者将在今年春季提供主要的感染源。接种量如此之高，疫病很可能早就开始了。志愿人员控制始终是抗疫病策略的重要组成部分，草甘膦的应用将为新兴植物提供一定的控制。对于希望长期控制志愿人员的种植者，由BPC资助的研究表明，草甘膦将减少未来农作物的志愿人员数量，但需要在季节后期应用才能产生这种效果。同时，必须对失去的农作物进行某种形式的疫病控制。在未收割的农作物被搁置的地方，种植者仍然可以采取行动。

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