The European commission directive EC 128/2009 calls for monitoring pests and pathogens of major crops. The monitoring data may be analysed for trends over time, including tests for a potential loss of biodiversity in the domain of plant pests and pathogens. The monitoring programs carried out in Luxembourg since 2007 provided evidence for an increasing role of yellow rust and a decreasing role of brown rust on winter wheat. Vast inter-annual variability was observed at the level of Fusarium head blight and mildew symptoms on winter wheat as well as at the level of Ceutorhynchus counts in oilseed rape, but no trend towards extinction could be demonstrated. Septoria leaf blotch was present in winter wheat at high levels towards the end of all seasons. The maximum number of Brassicogethes aeneus individuals found per main stem and season on oilseed rape increased slightly but significantly between 2007 and 2017. Substantial evidence for highly dynamic changes in the pest populations was found, but no evidence for the vanishing of the monitored species could be demonstrated.

欧洲委员会指令EC 128/2009要求监视主要农作物的病虫害和病原体。可以分析监测数据的随时间变化的趋势，包括测试植物有害生物和病原体领域中生物多样性的潜在损失。自2007年以来在卢森堡执行的监测计划为黄锈病在冬小麦中的作用增强和棕锈病的作用降低提供了证据。在冬小麦的镰刀菌枯萎病和发霉症状水平以及油菜中的Ceutorhynchus计数水平上都观察到了巨大的年际变化，但是没有发现灭绝的趋势。到整个季节结束时，冬小麦中都存在高浓度的Septoria叶斑病。芥菜的最大数量 在2007年至2017年之间，油菜籽上每个主要茎和每个季节发现的个体略有增加，但显着增加。发现了有害生物种群高度动态变化的大量证据，但没有证据表明所监测物种的消失。