- Unique modes of action
- Low environmental impact and toxicity
- Lower spray rate compared to other biologicals
- No cross-resistance between Serifel and conventional chemical fungicides
How it works
The active ingredient in Serifel® is bacillus amyloliquefaciens strain MBI600 (min 5.5 x 10^10 cfu/g). Serifel forms a ‘shield of protection’ against a broad spectrum of plant pathogens using three modes of action: competition for space, competition for sustenance and the production of antifungal metabolites.
When the Serifel spores are the first to occupy the limited space on the plant, they physically exclude plant pathogens from occupying the same space. Serifel then depletes the supply of nutrients available to the pathogen spores on the plant surface, causing any pathogen spores on the plant surface to die. The antifungal metabolites produced by Serifel, surfactin and iturin, penetrate pathogen cell membranes, disrupting cell function and causing cell death on the plant’s surface.
It is critical Serifel is used preventatively rather than curatively because Serifel cannot eliminate pathogen spores that have already infiltrated the plant’s surface.