How does Fusarium spread through Cannabis plants?
Recognize the ideal conditions, possible entry points, and methods of transmission for a Fusarium infection to spread through a cannabis facility.
Research has shown that Fusarium can be challenging to manage due to its ability to produce long-lived spores. According to a study by Summerell and Leslie (2011), Fusarium species can remain dormant in soil for years, making it difficult to eradicate once established. Meaning proactive mitigation is more economical and effective than battling an established infection.
This blog explores the ideal conditions for this pathogen to thrive, the possible entry points, and transmission methods, highlighting the importance of proactive measures to manage and prevent Fusarium infections
Download our Fusarium Fact Sheet for more information.
Ideal Conditions for Fusarium to Thrive
Fusarium can survive in various conditions, however, certain environmental factors can significantly enhance its growth and spread:
Temperature and Humidity: Fusarium thrives in warm and humid conditions, typically between 20-30°C (68-86°F). High humidity levels create an environment conducive to fungal growth, making cannabis facilities with poor ventilation particularly vulnerable.
Soil and Water: Fusarium prefers soils that are moist and rich in organic matter. Overwatering and poor drainage can create a breeding ground for this pathogen. Additionally, contaminated water sources can introduce and spread this pathogen within the facility.
Plant Stress: Plants that are stressed due to inadequate nutrition, physical damage, or other environmental factors are more susceptible to Fusarium infections. Healthy plants have better natural defenses against pathogens.
Possible Entry Points and Methods of Transmission
The primary entry points and transmission methods include:
Infected Soil and Growing Media: Fusarium can persist in soil for years. Introducing contaminated soil or growing media into a cannabis facility is a common way for the pathogen to enter and spread.
Consider sterilizing your coco medium with our step-by-step guide.
Contaminated Tools and Equipment: Tools, pots, and other equipment that come into contact with infected plants or soil can easily transfer Fusarium to healthy plants. Ensuring that all tools are sanitized regularly is vital.
Read about proven tool sterilization techniques in our guide.
Human Activity: Workers can inadvertently spread Fusarium through their hands, clothing, and footwear. Implementing strict hygiene protocols can significantly reduce the risk of transmission.
Reference our S.T.O.P. Pathogens Program Guide to establish sanitation guidelines in your facility.
Water: Pathogen spores can be present in irrigation water. Using contaminated water sources or not properly treating recycled water can introduce the pathogen to the plants.
Test the water in your facility for fungal pathogens with our Water System Panel.
Proactive Mitigation Measures
Proactive measures make it possible to manage and prevent pathogen infections effectively. By understanding how Fusarium spreads and implementing rigorous sanitation, water management, and environmental control practices, cannabis growers can keep Fusarium infections to a manageable level. Remember, being proactive is more economical and effective than battling an established infection. Stay vigilant and maintain high standards of hygiene and plant care to protect your crops from Fusarium wilt.
Sources:
Summerell, B. A., & Leslie, J. F. (2011). Fifty years of Fusarium: How a young genus grew into a mega-diverse genus. Fungal Diversity, 50, 215-232.
About TUMI Genomics
TUMI Genomics is advancing cannabis cultivation by bringing biological insights to help commercial growers thrive. Through comprehensive preventative solutions, superior pathogen diagnostics, and AI-driven insights, TUMI Genomics is helping cultivators start clean and stay clean. The unrivaled diagnostics, transparent validation and industry-leading pathogen detection innovations provided by TUMI Genomics are raising the standards of commercial cannabis cultivation. The team at TUMI Genomics is composed of deeply experienced Ph.D. molecular biologists, bioinformaticians, business strategists, and accomplished serial entrepreneurs.
Media Contact: Hailey Spencer, Marketing Director
Research Inquiries: Tassa Saldi, Ph.D., Co-Founder and CSO
