Organic Fungicides for Fungal Disease Management
Biological and botanical disease control, used the way fungicides work best — ahead of the infection rather than after it.
Prevention is most of the result
Fungal disease is driven by weather. Leaf wetness duration, humidity and temperature determine whether spores present in the field succeed in infecting the crop, which is why an outbreak can appear across a district within days of a wet spell. Once infection has established inside plant tissue, most control products can slow its spread but cannot restore what is already lost.
That places biological and botanical fungicides firmly in the preventive half of a programme. Applied ahead of a high-risk weather window, with good coverage of the tissue you are protecting, they can hold pressure down. Applied to a crop already showing widespread lesions, they will disappoint. Spray intervals and coverage matter more here than with almost any other input.
Resistance and rotation
Fungal populations develop resistance quickly under repeated exposure to a single mode of action. Rotating modes across the season is not an optional refinement — it is what keeps the products that still work, working. Biological options widen the set of modes available to rotate through.
Target diseases, crops and application intervals are product-specific and regulated. Where the product page states them, they come from that product’s documentation; contact our field team for a recommendation matched to the disease you are facing.
Frequently asked questions
What is a bio fungicide?
A bio fungicide uses biological organisms or plant-derived compounds to suppress fungal pathogens, rather than synthesised chemistry. It is used mainly preventively, ahead of the conditions that favour infection.
Should fungicide be applied before or after disease appears?
Before, wherever possible. Fungal infection is driven by leaf wetness, humidity and temperature, and once it is established inside plant tissue most products can only slow its spread. Applications timed ahead of a high-risk weather window are far more effective than a response to visible lesions.
Why rotate fungicides?
Fungal populations develop resistance quickly when exposed repeatedly to a single mode of action. Rotating between modes across the season preserves the effectiveness of the products you rely on.
Which fungicide is right for my crop?
It depends on the disease, the crop and the stage of the season. Contact Indochem Agrovet with those details and our field team will advise from the range.