Published on 31/07/2025
Fortunately, Bolide from ADAMA NZ provides a robust solution to a number of important diseases (Septoria, leaf and stripe rust and powdery mildew), particularly when tank mixed with Phoenix Fungicide. This multi-layered approach will both improve disease control and reduce the risk of fungicide resistance developing, helping to maximise crop yields.
Bolide contains an innovative combination of two different DMI (demethylation inhibitors –group 3) active ingredients – epoxiconazole and prochloraz – which complement each other by tackling different strains of Septoria. By ‘stacking’ these complementary actives, you can comprehensively protect your crops from disease and reduce the risk of fungicide resistance at the same time.
New Zealand trials have shown that Bolide provides a strong start to septoria fungicide programs, and outperforms products which only feature a single DMI when it comes to disease control and protecting crop yields.
Bolide is an all-rounder DMI fungicide. Absorbed via the stem and foliage, it moves upwards and outwards to protect new growth. It’s an effective and flexible fungicide option and can be used at a variety of different growth stages depending on your needs.
For early season Septoria control, the best time to use Bolide is at T1 to protect the emerging leaf 3. An infected leaf 3 can easily infect leaf 2 and the flag leaf so keeping leaf 3 clean is crucial as your crop reaches maturity.
During wet seasons where there’s increased Septoria pressure, or if you need to control eyespot or stripe rust, Bolide can also be used earlier at T0.
Later season diseases such as rust, powdery mildew and ear disease complex can also be addressed with Bolide as it combines protectant, curative, and eradicative properties. Apply at T3 if needed.
While Bolide offers control and protection for a range of diseases at various application timings, following fungicide resistance guidelines is advised. Do not use another DMI with Bolide. No more than 3 DMI (triazole) sprays should be applied to a crop, including seed treatment. Fungicides from different groups should be used in rotation or mixed with each other to reduce the development of fungicide resistance.
Septoria can seriously damage your crops, so it’s important to maintain effectiveness and prevent further fungicide resistance from developing. That’s why ADAMA suggests mixing Bolide with Phoenix Fungicide at T1 to improve results and strengthen resistance management.
Phoenix Fungicide (group M4) works against Septoria at a cellular level, inhibiting spore germination, cell division and reducing energy production in the mitochondria. Currently there is no known resistance to Phoenix Fungicide anywhere in the world. Phoenix Fungicide doesn’t inhibit DMI uptake so your applied dose will have maximum speed and effect.
For more information about how Bolide and Phoenix Fungicide can protect your valuable crops, please contact your local ADAMA Commercial Manager.