Manzebria+

Manmetbria combines mancozeb with metalaxyl, and it remains the reference treatment for downy mildew in vine, potato and tomato. The design is deliberate: metalaxyl is systemic and moves inside the plant to stop established infection, while mancozeb is a multi-site protectant that shields the surface and — just as importantly — protects metalaxyl from resistance, which develops fast when it is used alone.

Characteristics

• —The standard treatment for downy mildew and late blight
• —Metalaxyl works systemically inside the plant
• —Mancozeb protects the surface and guards metalaxyl against resistance
• —Covers vine, potato and tomato
• —Mancozeb also supplies manganese and zinc as a side benefit
• —FRAC Groups M3 and 4

How it works

Metalaxyl inhibits ribosomal RNA synthesis in oomycetes, stopping the water moulds that cause downy mildew and late blight. Mancozeb is a multi-site dithiocarbamate that inactivates several fungal enzyme systems at the surface. The multi-site partner is not optional — metalaxyl used alone loses effectiveness within a few seasons.