As you consider your spring disease management programme for your cereal crops, there’s one multisite fungicide that should be front of mind.
In the last couple of months - following our popular cereal disease control webinar - we’ve covered the value of alternative plant protection products like IODUS and THIOPRON.
This month, we want to dig deeper into the benefits of THIOPRON and make sure you know how to apply it correctly to maximise its effectiveness.
The importance of a multisite fungicide
Multisites are important because of their protective mode of action. Unlike single site systemic fungicides such as SDHIs, QiI and azole, they show little sign of resistance issues.
Using them in cereal fungicidal programmes helps to protect the valuable single site chemistry we have and reduce resistance pressure.
The loss of multisite fungicide chlorothalonil (CTL) continues to impact cereal disease management, but thankfully, alternative options like THIOPRON are now well proven in the field.
THIOPRON is an innovative liquid multisite fungicide. Part of our flagship Natural Plant Protection range, its natural, zero-residue sulphur active provides highly effective control of a range of diseases.
Where to use
THIOPRON can be applied across a wide range of cereal crops, including wheat and barley.
It’s particularly effective as a preventative control of foliar diseases, and works well to prevent early infections of septoria tritici, powdery mildew and rhynchosporium.
What are the benefits of THIOPRON?
THIOPRON is an ideal natural multisite partner. It has equivalent or better control compared with conventional multisite products, and has no known resistance. It has:
• Excellent compatibility
• Enhanced rainfastness
• Optimised leaf coverage
• Good dose flexibility (2.0 – 3.0 L/ha depending on varietal resistance and disease pressure)
How does it work?
The fine sulphur particles in THIOPRON react on the leaf surface to produce hydrogen sulphide gas, which is toxic to pathogens including septoria tritici and powdery mildew. The gas works as an anti-sporulant, preventing early infections and reducing the spread of disease if it is already present.
When to apply THIOPRON
You can use THIOPRON from growth stage 31-61 of cereal crops. We recommend two applications per crop.
For winter wheat and winter barley, the optimum timing to apply THIORPON is at T1 and again at T2.
How to apply
THIOPRON’s dosage can be adjusted according to crop variety and disease pressure. We recommend a working rate of 2.0 to 3.0 L/Ha in your tank mix with your standard T1 and T2 fungicide.
If you’re growing Septoria-susceptible varieties, THIOPRON should ideally be included at 3l/ha at both T1 and T2 to optimise performance. In lower pressure scenarios, 2l/ha would suffice.
Our best use guidelines for THIOPRON:
Prior to loading the sprayer:
• Ensure all filters are clean and sprayer tank is washed out from previous operation
• Ensure 100 mesh (150μm) filters are used on the sprayer
• Ensure a minimum water volume of 150L/ha (ideally 200L/ha)
Loading the sprayer:
• Part fill the sprayer to ensure there is adequate water for the THIOPRON to disperse into
• Ensure sprayer is agitated while filling
• If applying as a tank mix then add antifoams, WP or WG formulations to the tank first
• Shake each THIOPRON container vigorously before opening.
Find out more detailed information about THIOPRON here.
