Malvin w.g.

Technical capacity of Malvin w.g. contact fungicide

The efficacy of Malvin w.g. is based on the active ingredient Captan, belonging to the phthalimide class. This is a classic contact fungicide with a pronounced multi-site mode of action. Unlike systemic agents that block specific enzymatic processes, Captan inhibits a broad spectrum of pathogen biological functions — from amino acid metabolism to cellular respiration. This is critical for preventing the development of resistance in apple scab and grapevine downy mildew pathogens.

Engineering solution: formulation

The product is available in water-dispersible granules (WG), a technological standard for modern crop protection. The technical value of this formulation lies in the stability of the suspension during tank mixing. The granules disintegrate rapidly, forming a fine dispersion that adheres tightly to the epicuticular wax of leaves and fruits. This creates a durable protective 'screen' that prevents fungal spore germination upon contact with the plant surface.

Usage guidelines

• Application: To ensure high efficacy, uniform coverage of the entire leaf surface is essential, as Malvin w.g. does not possess systemic redistribution.
• Application rates: 1.5–2.5 kg/ha depending on the phytosanitary conditions and the crop development stage.
• Frequency: Up to 3–4 treatments per season are allowed. It is essential to strictly observe the pre-harvest interval (PHI) of 30 days to ensure compliance with food safety standards.

Manufactured by Arysta LifeScience S.A.S. (Noguères, France), this fungicide serves as a preventive protection tool. Its Class 3 hazard rating requires standard safety precautions; however, its contact mechanism makes it an indispensable component of anti-resistance strategies, alternating with systemic fungicides to maintain the productivity of orchards and vineyards.