Can microbial inoculants be used on orchids in winter?

Microbial inoculants need to meet these key points, and microbial inoculants cannot be used on orchids in winter. The beneficial microbes in microbial inoculants are generally more active when the soil is at 18-25°C; when the temperature drops below 15°C, their activity begins to decline, and at 10°C they enter a dormant state or become very weak. Since winter temperatures are low, applying microbial inoculants to orchids has little effect and easily leads to waste.