Tricyclazole 40%SC for Real-World Rice Blast Control

If you’re evaluating a Fungicide that actually cuts through rice blast pressure without drama, the Tricyclazole 40%SC from CNAGROCHEM (Chinese ICAMA) keeps coming up in field notes and distributor chats. I’ve walked fields where it was used; results looked clean, and growers kept asking for repeat stock. It’s made at No.1810 Tower B, Jinyuan Building, 152 Huai'an Road, Yuhua District, Shijiazhuang City, Hebei Province, China—worth noting for traceability and import docs.

What’s inside and why it matters

Tricyclazole is a melanin-biosynthesis inhibitor (FRAC code 16) targeting Magnaporthe oryzae. In plain terms, it disrupts the pathogen’s appressorium formation—so less penetration, less lesion spread. In practice, that translates to fewer panic sprays at booting. And yes, as a Fungicide, it plays nicely in rotation with strobilurins or SDHIs to manage resistance.

Formulation process and QC (quick but real)

Materials: technical tricyclazole ≥98% purity, wetting/dispersing agents, antifreeze, deionized water. Method: premix → high-shear dispersion → bead-mill to D90 ≈2–5 μm → let-down → in-line filtration → filling. Testing: a.i. by HPLC; CIPAC suspensibility MT 184; wet sieve (75 μm) ≤2%; accelerated storage 54°C/14 d; cold stability; viscosity (Brookfield). Standards referenced: FAO/JMPS specs where available, CIPAC MT methods, plus OECD-style storage checks.

Where it fits (and where it shines)

• Prophylactic sprays at tillering to booting; curative action is modest—don’t wait for heavy lesions.
• Programs rotating a Fungicide FRAC 16 with QoI/SDHI to slow resistance.
• High-humidity rice belts (SE Asia, South Asia, coastal zones) where blast pressure spikes overnight.
• Distributors needing ICAMA-backed registration data and white-label options.

Field feedback and sample data

In demo strips across Mekong Delta and eastern India, distributors reported ≈30–55% reduction in new blast lesions vs. untreated and a steadier panicle fill. Lab batches I saw had a.i. 40.2–40.6%, suspensibility 78–90%, and no visible caking after 14 days at 54°C. To be honest, water quality and nozzle choice still make or break any Fungicide—use clean water and medium-fine droplets.

Practical notes (the small things that matter)

• Tank-mix: jar test first; avoid highly alkaline water. Add a non-ionic wetter if leaves are waxy.
• Program: 1–2 sprays pre-booting; switch MOA after 10–14 days. It’s a Fungicide, not a silver bullet.
• Storage: keep sealed; shake well—SCs settle a bit, that’s normal.
• Certs: ICAMA registration; typical plants run ISO 9001/14001—ask for current certificates.

Citations

1. FRAC. Fungicide Resistance Action Committee Code List (MBI, Code 16). https://www.frac.info/
2. CIPAC. Collaborative International Pesticides Analytical Council – MT 184 (suspensibility), MT 46.3 (accelerated storage). https://www.cipac.org/
3. IRRI Rice Knowledge Bank. Rice blast management guidelines. https://knowledgebank.irri.org/