Dithianon
Description
Dithianon is a potent active ingredient belonging to the quinone chemical group, widely used in global horticulture as a reliable contact fungicide. Its primary purpose is to establish a protective coating on the surface of leaves and fruit, effectively preventing fungal spores from germinating and penetrating into the plant tissue. It acts as a preventative shield, making it a cornerstone in modern disease management programs.
The mechanism of action for Dithianon involves the inhibition of enzymes containing sulfhydryl groups, which are vital for the fungal cell respiratory processes. By interfering with these biochemical pathways, the substance effectively neutralizes pathogens at the very beginning of the infection cycle. Because it acts on multiple metabolic sites, the risk of fungal pathogens developing resistance is significantly reduced, preserving its long-term efficacy.
Dithianon is predominantly utilized for the treatment of pome and stone fruits, specifically targeting apple and pear scab, as well as moniliosis and various leaf spot diseases. Its superior ability to resist being washed off by rain ensures consistent protection during unpredictable weather conditions, which is essential for maintaining healthy orchards and high-quality harvests throughout the growing season.
Application of Dithianon should be executed using standard spray equipment to achieve uniform coverage of the crop canopy. As a contact fungicide, its efficiency is directly related to the thoroughness of the application. It is compatible with many other insecticides and fungicides, though it should not be mixed with highly alkaline substances to avoid potential degradation or loss of chemical stability.
- High resistance to wash-off by rain
- Excellent preventative activity against fungal spores
- No cross-resistance observed in major orchard pathogens
- Compatible with integrated pest management (IPM) practices
Safety is paramount when handling Dithianon; operators must wear appropriate personal protective equipment including gloves, goggles, and respiratory masks. It is essential to strictly follow the label instructions regarding pre-harvest intervals to ensure safety for consumers. Furthermore, ensure that all waste and runoff are managed correctly to prevent environmental contamination, particularly in aquatic ecosystems where the product may be harmful.
Status in the European Union
Approved in the EU
- CAS number
- 3347-22-6
- Approved from
- 01.06.2011
- Approval until
- 31.01.2027
- ADI
- 0.01 mg/kg bw/day
- ARfD
- 0.12 mg/kg bw
- AOEL
- 0.0135 mg/kg bw/day
Regulatory status data: EU Pesticides Database © European Union, CC BY 4.0. EU status is for reference only and does not replace national registration in your country.