Tired of Spraying — Then Watching Disease Come Back Anyway?

You sprayed. You covered every leaf you could reach.

Three days later, a wet night rolled through — and by morning, the disease hadn't even slowed down.

Meanwhile it kept moving — leaf to leaf, plant to plant — and the whole time, one question sat in the back of your mind:

"Is this actually protecting anything? Or am I just spraying to feel like I'm doing something?"

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The Breaking Point

My breaking point came when I stood in a field I'd treated just three days earlier — and watched the protection fail in real time. Not just fade. Fail.

• ⏱ Time & Money Wasted — You stop work, mix product, walk the field. The spots show up again anyway.
• 🍃 Disease Left Behind — Surface-only products only defend what they physically touched. Anything new that grows in after that is left completely exposed.
• 🌧 Wet Weather Accelerates Everything — Every spray window shrinks. Reapplication cycles stack up. You're always one storm behind.

"Surface-contact products only defend what they touched — anything new that grows in after that is left completely exposed."

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Then I Found Out What Actually Protects From Within

Most growers expect a systemic product to look the same as what they've been using. The difference isn't visible in the bottle — it shows up in the field, three weeks into a wet season.

The difference isn't in how it sprays.

It's in what happens after it lands.

Prosaro's active ingredients — Prothioconazole and Tebuconazole — are absorbed by the plant and move systemically through tissue. Protection doesn't stop at the leaf surface. It travels with the plant as it grows.

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How RZXEA™ Prosaro Changes Everything

SYSTEMIC PROTECTION CYCLE — 2 Days After Application

PROTECTION THAT TRAVELS WITH GROWTH — NOT JUST WHERE YOU SPRAYED

Contact fungicides only sit on the surface where they were applied.

Once they wash off, break down, or new leaves emerge — the protection is gone.

RZXEA™ Prosaro works differently.

Its two active ingredients, Prothioconazole and Tebuconazole, are absorbed by the plant and move systemically with growth.

You don't have to recoat every new leaf that emerges.

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The Science in Plain English

Think of it as two very different kinds of defense.

Contact products are like sunscreen — they only protect the spots you covered, and one good rain or new growth and that protection fades.

RZXEA™ Prosaro is more like a vaccine — once absorbed by the plant, protection keeps working as the plant keeps growing, without needing to reapply to every new part that emerges.

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Visible Protection. Systemic Solution.

"Our family's grown wheat for three generations, and every spring the rust comes back. I'd tried surface-level products before — they only ever treated the symptom, never the cause. After one full season with RZXEA™ Prosaro, recurrence dropped noticeably, and the new heads came in cleaner than I'd seen in years."

— Mark Thompson, Kansas, USA (Wheat Grower)

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Season-by-Season: What Protection Actually Looks Like

"I used to be a contact-spray guy — spray it, see it, trust it. What changed my approach was getting the crop to absorb the active ingredient so protection grows right alongside it."

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Why It Works: What's Actually Inside

You deserve to know exactly what you're applying — and why it works.

Prothioconazole — The Systemic Engine

A broad-spectrum systemic fungicide active ingredient classified under FRAC Group 3 / DMI.

After absorption, it interferes with fungal sterol biosynthesis — the biological pathway fungi depend on to grow and spread.

What it means for you: Protection doesn't stop at the surface. It keeps covering the plant as it grows.

Tebuconazole — The Established Triazole Partner

A globally documented triazole active used in professional cereal disease programs for decades.

Works on the same DMI pathway as Prothioconazole, adding both preventive and early curative coverage.

What it means for you: A second line of defense that reinforces the first — not duplicates it.

The Dual-Triazole DMI System — Why Two Actives Matter

Both compounds target fungal sterol synthesis (FRAC Group 3 / DMI) — a well-established, technically validated pathway. Not an untested new gimmick.

What it means for you: Fewer gaps in your program during the weeks that matter most.

Systemic Absorption Technology

Active ingredients are absorbed by plant tissue and transported systemically with growth.

What it means for you: Even leaves that emerge after application stay within the protection window.

Preventive + Curative Action Design

Designed for both disease risk period prevention and early-stage control.

What it means for you: No need to wait until symptoms are severe — and no need to bet everything on one "catch-all" application.

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RZXEA™ Prosaro vs. Contact-Only Fungicides

The problem with contact-only products: They act only on the surface where sprayed — one risk window, and new growth is left completely exposed.

The RZXEA™ Prosaro advantage: Systemic coverage + dual preventive-curative logic, without depending on perfectly timed reapplication.

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From Growers Like You

"We run a barley farm and deal with leaf spot every season — always a step behind. This time we applied RZXEA™ Prosaro ahead of the risk period, and by end of season the field showed noticeably fewer affected areas."

— James Fletcher, Norfolk, United Kingdom (Barley Grower)

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"I lost a week of work to a single storm wiping out a contact spray application. That was the last time. The systemic approach is just a completely different level of reliability."

— David MacLeod, Saskatchewan, Canada (Grain Grower)

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"A neighbor suggested I try a systemic approach. Three applications in, the new leaves are noticeably cleaner — and I'm not glued to the weather forecast anymore."

— Klaus Weber, Bavaria, Germany (Wheat Grower)

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Pro Tips: Getting the Most from Prosaro

🔧 Equipment

Ensure even coverage using recommended spray equipment. Treat all label-specified areas thoroughly, avoiding missed spots.

⚗️ Mixing Ratio

Strictly follow label mixing ratios. Standard reference ratio: 10g per 10L of water (approximately 1:1000 dilution). Fine-tune within label range based on disease pressure and crop density. Do not significantly adjust concentration without label guidance.

👷 Personnel Safety

Observe all label-specified PPE requirements. Keep people and pets out of treated areas until dry. Follow all re-entry interval instructions.

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A Crucial Timing Note

Systemic protection works best when it's already in the plant before disease pressure peaks.

The best time to act was before the disease risk emerged.

The second-best time is now.

Also important:

Avoid relying on a single FRAC Group 3 / DMI product repeatedly over time.

Rotate different modes of action according to label instructions and resistance management guidelines.

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Frequently Asked Questions

Q: How soon will I see results with RZXEA™ Prosaro?

Systemic fungicides work over a growing season rather than in hours. Results reflect reduced disease progression and cleaner new growth — not an overnight visual change. Always evaluate per label guidance.

Q: Is it suitable for all crops?

No. Apply only to crops registered on the product label for your region. Verify label information before purchase and use.

Q: How much area does one bottle treat?

Mixed at the standard ratio (15g per 15L water), coverage area depends on label usage instructions and may need adjustment based on disease pressure and crop density.

Q: How long before harvest can I apply this?

You must strictly observe the Pre-Harvest Interval (PHI) specified on the local product label. This varies by crop and region.

Q: Can this be rotated with other fungicides?

Yes — and it's recommended. Per resistance management principles, rotate different FRAC mode-of-action products to avoid resistance risk from prolonged single-mode use.