四川省山桐子主要病害种类及防控建议

Major Disease Types of Idesia polycarpa in Sichuan Provinceand Its Prevention and Control Suggestions

山桐子(Idesia polycarpa)是我国优良木本油料作物之一,有极高经济价值和广阔的发展前景。2020年6月至2021年11月,以四川7个山桐子种植园为调查点,通过人工踏查和样地法相结合的方式,对山桐子主要病害种类、危害程度、分布情况、发病特征和发生规律进行了全面细致的调查统计。结果显示,目前在四川危害山桐子的主要病害有8种,即炭疽病、膏药病、锈病、叶斑病、根腐病、茎腐病、叶枯病和地衣病;炭疽病和膏药病发生最为普遍,危害最为严重;夏秋季节是病害发病高峰期。为促进山桐子产业的健康发展,提出多方位结合的防控措施,以构建完备的山桐子病害防控体系,指导山桐子的生产实践。

As one of the excellent woody oil crops in our country,Idesia polycarpa has extremely high economic value and broad development prospects.Taking seven I.polycarpa plantations in Sichuan as the investigation sites from November 2020 to November 2021,the major disease types,hazard level,distribution pattern,characteristics and occurrence regularity of the disease were investigated and recorded in detail by the combination of comprehensive census and sampling method.The results show that there are currently 8 major disease types of I.polycarpa in Sichuan,including anthracnose,plaster disease,rust,leaf spot,root rot,stem rot,leaf blight and lichen disease;the most common and serious diseases are anthracnose and plaster disease,whose incidence peaks are in summer and autumn.Therefore,a multi-directional control measure is proposed to build a complete green prevention and control system of I.polycarpa for guiding its production practice and promoting the healthy development of I.polycarpa industry.