Plant Nematode Problems and Their Management in Thailand
Thailand has exported agricultural commodities to many countries around the world and one of the most important export requirements is nematodes-free agricultural products.Two important quarantine nematode pests including Radopholus similis,contaminated in some export ornamental and aquatic plants,and Meloidogyne enterolobii,an important root-knot nematode species recently identified in some crops,have been reported in Thailand.Currently,the molecular technique based on the Polymerase Chain Reaction(PCR) is applied to rapidly identify and confirm the presence of both nematodes in export agricultural products.In managing these nematodes,Thai authority has implemented a policy to reduce pesticide usage and promote biological control alternatives.Accordingly,the fungi Trichoderma hazianum has been studied and shown to reduce the infection of root-knot nematodes (M.enterolobii)and to delay nematode development.Vetiver grasses (Vetiveria zizanioides),especially the ethanol extracts,affected nematode vitality and possessed the repellent activity to M.incognita.Furthermore,the sesquiterpene acid,the potential substance with repellent activity,was found in 2-month-old vetiver grasses.Consequently,effective management of quarantine nematodes will help reduce the problem of nematode contamination and support the export of agricultural products to overseas countries.
Kansiree Jindapunnapat Buncha Chinnasri
Department of Entomology and Plant-Pathology, Faculty of Agriculture, Khon Kaen University, Khon Kae Department of Plant-Pathology, Faculty of Agriculture, Kasetsart University, Bangkok,Thailand
国际会议
西安
英文
46-49
2019-10-28（万方平台首次上网日期，不代表论文的发表时间）