PROBLEM TO BE SOLVED: To achieve an agent for controlling root-lesion nematode, exhibiting excellent safety on men and beasts and on the environment, capable of being executed at a low cost, and having high controlling effects on a root lesion nematode of a representative kind of plant-parasitic nematodes providing terrible damage to a crop and to provide a controlling method using the controlling agent.SOLUTION: The controlling agent for root-lesion nematode is obtained by using an extract of easily available raw coffee beans in which natural active ingredients that are easily degraded by heat or the like are contained abundantly without being degraded. The controlling method uses the controlling agent.COPYRIGHT: (C)2013,JPO&INPIT【課題】人畜や環境に対する安全性等に優れ、低コストで実施することが可能であり、作物に対して甚大な被害をもたらす植物寄生性線虫の代表種であるネグサレセンチュウに対して高い防除効果を有する防除剤を実現し、これを用いた防除方法を提供する。【解決手段】入手が容易で、熱などで容易に分解してしまう天然の有効成分が分解されずに豊富に含まれている生コーヒー豆の抽出物を用いたネグサレセンチュウの防除剤とこれを用いた防除方法を提供する。【選択図】図1
