The “intensive & chemical-farming” for the past 50 years all over the world have been detrimental to soil health and water quality, leading to an increase in plant diseases and other pest problems. Important soil-borne pathogens include fungi, fungi-like organisms, bacteria as well as viruses and plant parasitic nematode. Soil-borne diseases are one of the major factors contributing to low yields of agro- products. Most soil-borne pathogens are difficult to control by conventional strategies such as the use of resistant cultivars and synthetic pesticides. Soil application of fungicides is expensive and deleterious to non-target microflora. Biological control has become a critical component of plant disease management and it is a practical and safe approach in various crops. Bio-protectants provide a unique opportunity for crop protection, since they grow, proliferate, colonize and protect the newly-formed plant parts to which they were not initially applied. Most soil-borne plant pathogens causing root and foot rots in older plants are usually less prevalent in organic farm than in conventional/chemical farms.
Organic farming is gaining worldwide acceptance and is becoming a major tool for sustaining the quality of degraded soils. There is considerable interest in substituting biologically-based inputs for chemicals to manage plant diseases because of concerns over environmental or human health. One such approach is to apply organic amendments to soils to suppress soil-borne diseases. The use of bio-agents, such as bio-fertilizers or bio-pesticides is an integral part of organic farming, especially in vegetable cultivation. The nature of the organic amendments, the microorganisms present, the properties of the soil, and environmental conditions are key factors that can influence the populations of soil-borne plant pathogens and the crop to be protected. Using organic amendments, antagonistic microorganisms and phyto-chemicals in controlling soil-borne root infecting fungi offers an alternate strategy to the prevalent use of synthetic pesticides.
Review on soil-borne pathogen/diseases research in Taiwan and other countries (or Review on biocontrol of soil-borne pathogen/diseases research in ASPAC countries). | Paper：
Dr. Chaur-Tsuen Lo
National Formosa University
Soil microbiology and its interaction with plant health in agro ecological systems
The soil-borne pathogen/diseases problems and management strategies for annual crops (some vegetable, tomato, chili, root and tuber crops etc): Experience from Vietnam
Dr. Nguyen Duc Huy
Dept. Plant Pathology – Vietnam National University of Agriculture
Importance of the microbial quality of commercial biofertilisers and biopesticides and how CMBP network can contribute to improve them in SEA. | PPT：
Dr. Didier Lesueur
Common Microbiology Biotechnology Platform (AGI-CIAT-CIRAD), CIAT Asia office
Application of bio-products to control plant parasite nematodes and soil born diseases on black pepper and coffee in Vietnam.
Dr. Nguyen Thi Chuc Quynh
Efficacy of bio-pesiticides developed by Jianon Enterprise Co., Ltd. for controlling of soil-borne diseases caused by Ralstonia solanacearum and Fusarium spp. in Taiwan.
Dr. I-Chang Yang
Jianon Enterprise Co., Ltd., Taiwan