Biofungicide consortium for vascular wilt disease management in golden berry crops
A microbial biofungicide based on Trichoderma virens Gl006 and Bacillus velezensis Bs006 consortium for managing vascular wilt disease (Fusarium oxysporum f. sp. physali) in golden berry, offering preventive biocontrol through synergistic microbial action for nursery and transplant applications.
Overview
This biofungicide solution addresses vascular wilt disease in golden berry crops caused by Fusarium oxysporum f. sp. physali, a pathogen that threatens productivity in this important fruit. The technology leverages a synergistic microbial consortium combining Trichoderma virens Gl006 and Bacillus velezensis Bs006, two beneficial microorganisms that work together to suppress the pathogen. By applying microbial consortia rather than single strains, the approach improves the consistency and reliability of biocontrol in crops, giving growers a more dependable alternative to conventional chemical fungicides.
The value proposition centers on delivering an environmentally friendly disease management tool that reduces dependence on chemical pesticides while protecting crop yields. Initial validation has demonstrated significant disease reduction, making this consortium a promising candidate for commercial biofungicide development with precise use directions for growers.
Technical specifications
Key features:
- Bacillus velezensis Bs006 supernatant combined with both Bs006 and Gl006 cells reduced disease incidence by 61 percent through preventive applications in nursery and transplant stages
- B. velezensis spores adhere to T. virens hyphae and conidia without causing damage or affecting Gl006 germination in root exudates
- Simultaneous application of the consortium with the pathogen achieved 71 percent disease reduction in a synergistic manner
- Compatible interaction between both microorganisms confirmed on root surfaces
- Designed for integration with other biocontrol measures including Trichoderma koningiopsis Th003, lactic acid bacteria, and chitosan
Mode of action:
The consortium works through complementary mechanisms: Bs006 produces bioactive compounds in its supernatant that suppress the pathogen, while the physical association between Bs006 spores and Gl006 hyphae enhances colonization of the root surface and creates a protective barrier against pathogen infection.
Technology readiness level
The technology is currently at an advanced research and validation stage. Laboratory and controlled-environment studies have confirmed the synergistic activity and compatibility of the consortium. Future validation work will characterize the eco-physiological responses of Gl006 to environmental factors including pH, temperature, radiation, and humidity to determine formulation stability. Researchers will also evaluate the viability of a preliminary mass production system at laboratory scale, determine dose-response relationships under greenhouse conditions, and assess compatibility with other disease control measures. These steps are essential before developing a commercially viable biopesticide product with precise application guidelines for growers.
About Corporación Colombiana de Investigación Agropecuaria
AGROSAVIA is a Colombian decentralized public entity of mixed non-profit participation dedicated to agricultural science, technology, and innovation. The organization focuses on generating scientific knowledge and developing agricultural technology through research, technological adaptation, and the dissemination of technical expertise. Its operations are organized into specialized innovation networks, including cacao, fruits, vegetables, livestock, permanent crops, and roots and tubers. By bridging the gap between advanced research and practical application, AGROSAVIA develops improved crop varieties, such as biofortified beans and sugarcane, and establishes integrated management protocols to enhance agricultural productivity and sustainability.
These efforts are vital for Colombian agricultural producers, providing them with the tools and knowledge necessary to improve competitiveness, ensure sustainable natural resource management, and raise their quality of life. Through initiatives like field schools and the provision of technical assistance, the corporation facilitates the transfer of technology and information to small-scale farmers. By fostering collaboration between the public and private sectors, AGROSAVIA acts as a key driver for technical change in the national agricultural sector, helping producers modernize their practices and address challenges related to climate resilience and food security.
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