生姜茎基腐病的发生与绿色安全防治技术

为了有效防治生姜茎基腐病,促进生姜产业健康发展,对茎基腐病在莱芜生姜上的危害特点和发生规律进行阐述,并在大量调查和长期生产实践的基础上对茎基腐病的农业防治、物理防治、生物防治等绿色综合防治技术措施进行总结,其中莱芜生姜茎基腐病致病菌为群结腐霉(Pythium myriotylum Drechsler),生姜整个生长期和...

Occurrence and Green and Safe Control Technology of Ginger Stem Base Rot

Abstract: In order to effectively control stem base rot of ginger and promote the healthy development of ginger industry, the harm characteristics and occurrence law of stem base rot of ginger of Laiwu district were expounded and the green and comprehensive control technological measures were summarized based on a large number of investigations and long-term production practice, such as agricultural control, physical control and biological control. Among them, the pathogen of stem base rot of Laiwu ginger was Pythium myriotylum drechsler. Ginger could be infected by the pathogen during the whole growth period and storage period. The field onset period was from May to September, and the peak onset period was from July to August. At this time, it was high temperature and humid, and the disease develops rapidly. According to the investigation, the disease reduced the yield of ginger by 10% -20%. Stem base rot of ginger was a typical soil borne disease. Comprehensive control measures could effectively prevent the occurrence of stem base rot and ensure the quality and safety of ginger products, such as high temperature treatment, soil sterilization, selection of virus-free cultivars, improvement of cultivation technologies and application of biological agents.