Description
Tri-Base Blue Fungicide contains 190 g/L Copper (Cu) as Tribasic Copper Sulphate. This Group M1 Fungicide provides professional protectant control for fruit, nut, vegetable, and ornamental crops. Australian growers use this water-based suspension concentrate as a high-efficiency alternative to traditional copper granules. It offers superior coverage and weatherability.
A patented manufacturing process creates ultra-fine copper particles. Approximately 70% of these particles measure less than one micron. This small size ensures a uniform and dense distribution of copper ions across the plant surface. Growers achieve higher protection levels at lower active ingredient rates compared to conventional copper products. The solvent-free formulation remains a staple in Australian disease management programmes.
Tri-Base Blue Fungicide effectively controls major horticultural diseases. These include Downy Mildew in grapes and Black Spot in pome fruit. It also treats Leaf Curl and Shothole in stone fruit. Growers use it for Anthracnose in tropical fruits like mangoes and avocados. It is a critical component for managing Bacterial Canker and Bacterial Spot in vegetable crops.
How does Tri-Base Blue Fungicide work?
It acts as a protectant fungicide. The liquid prevents fungal spores from germinating on plant tissue. By forming a protective chemical barrier on the leaf and fruit surface, it stops the infection before it enters the plant. Its activity against bacterial pathogens also makes it a versatile tool. It manages bacterial blights and spots that many other fungicides cannot control.
What makes the Tri-Base Blue formulation unique?
Nufarm Tri-Base Blue features a unique dual-release profile. When moisture reaches the product, approximately 75% of the copper is released immediately. This ensures rapid protectant activity. The remaining 25% releases slowly as it reacts with atmospheric carbon dioxide. This process provides both immediate knockdown protection and extended residual activity against late-arriving spores.
Can Tri-Base Blue be used in various weather conditions?
Application should occur prior to infection events, particularly when conditions like the “10:10:24” rule (10mm rainfall, 10 °C, 24 hours) are met for primary downy mildew infection. However, do not apply if rain is likely before the spray dries or during the hottest part of the day, exceeding 35 °C. Tri-Base Blue is a copper-based product. You must not apply it to copper-shy crops or cultivars. Apply it during dormant or early growth stages for many fruit trees. Always follow the crop-specific instructions on the label to minimise phytotoxicity risks.
What is the advantage of the liquid formulation?
The water-based, solvent-free liquid is practically odourless and easier to handle, transport, and mix compared to dustier powder alternatives. It also results in reduced visible residue on fruit such as avocado and mango, maintaining consumer appeal.
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