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Tebuthiuron 80% WDG

Tebuthiuron 80% WDG – Soil-Residual Herbicide for Total Vegetation Control

Tebuthiuron 80% WDG è un persistent urea herbicide formulated as a water-dispersible granule, designed for long-term suppression of broadleaf weeds, grasses, and woody plants in non-crop areas (industrial sites, railways) and select crops (sugarcane, pineapples). As a photosynthesis inhibitor (PSII, HRAC Group 5), it provides 1–2 years of residual control through root uptake and soil mobility, making it ideal for low-maintenance vegetation management .

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Specifiche tecniche

Parametro Specificazione
Principio attivo Tebuthiuron 80% (w/w)
Classe chimica Substituted urea (PSII inhibitor)
Tipo di formulazione Granuli disperdibili in acqua (WDG)
Modalità d'azione Blocks electron transport in PSII → disrupts photosynthesis
Target Vegetation Broadleaves, grasses, shrubs (Cynodon, Amaranto, Acacia)
Solubilità Moderate (2,500 mg/L at 25°C)
Emivita del suolo DT₅₀: 180–360 days (persistent)
Durata di conservazione 3 years (store at 10–30°C in dry conditions)

Critical Use Restrictions

  • Non-Selective: Total vegetation control – avoid near desirable plants.

  • Groundwater Hazard: High leaching risk (GUS index: 3.8) – prohibited in sandy soils or near aquifers .

  • Global Bans: Withdrawn in EU (2002) and Australia; restricted use in USA/Canada .

Linee guida per l'applicazione

Usi registrati:

Sito Dosaggio (kg/ha) Target Vegetation Metodo
Industrial Sites 4.0–8.0 Brush, perennial grasses Soil-surface broadcast
Sugarcane (Pre-plant) 2.0–3.0 Cynodon dactylon, Sorgo halepense Incorporazione del terreno
Silvicoltura 3.0–6.0 Woody invasives (Acacia) Spot treatment

Pratiche chiave:
⚠️ Attivazione: Requires 25–50 mm rainfall within 10 days.
⚠️ Zone cuscinetto: 100m from water bodies, 500m from croplands.
⚠️ Single Application Limit: ≤8 kg/ha/year to reduce leaching risk .

Profilo ambientale e di sicurezza

Parametro Dati Stato normativo
Tossicità per i mammiferi Moderate (Rat oral LD₅₀: 644 mg/kg) Classe II dell'OMS (moderatamente pericoloso)
Ecotossicità Extremely toxic to fish (LC₅₀: 0.09 mg/L) EPA Restricted Use Pesticide (RUP)
Legatura del terreno Koc: 80 (high leaching potential) GUS index: 3.8 (high risk)
Intervallo di rientro 48 ore Full PPE mandatory

Vantaggi e limitazioni

Vantaggi:
✅ Long-Term Control: 12–24 months suppression after single application.
✅ Efficiente dal punto di vista dei costi: Reduces mechanical clearing by 80% in trials.
✅ Gestione della resistenza: Efficace contro le erbacce resistenti al glifosato.

Limitazioni:
⚠️ Non-Target Damage: Root zone migration kills adjacent vegetation.
⚠️ Persistenza: Residual activity limits land reuse (wait 24+ months for sensitive crops).

Stato normativo globale

Regione Status Key Restrictions
U.S.A. Restricted Use (EPA Reg. No. 352-399) Certified applicators only; groundwater monitoring
Canada Limited registration (PMRA Dir. 2017-01) Prohibited in areas with <60 cm soil depth
Unione Europea Banned (2002) —
Brasile Approved for sugarcane (2021) Mandatory 500m crop buffers

Handling & Storage

  • Imballaggio: 25 kg moisture-proof bags with inner liner.

  • Immagazzinamento: Secure, ventilated area; separate from food/feed.

  • Spill Response: Contain with absorbent material; collect in sealed containers.

  • Disposizione: Incinerate at licensed facilities (>1,000°C) .

FAQ

Q: Can tebuthiuron be used near water?
UN: No – groundwater contamination risk; 100m buffer required from aquatic systems .

Q: How to remediate contaminated soil?
A: Activated charcoal (1–2% w/w) or microbial remediation (Pseudomonas spp.) over 6–12 months .

Q: Alternatives for eco-sensitive areas?
A: Passa a indaziflam (lower persistence) or mechanical/thermal weeding.

⚠️ Compliance Notice:
Questo prodotto è highly regulated due to environmental persistence. Always:

  1. Conduct soil percolation tests before application.

  2. Consult local groundwater vulnerability maps.

  3. Mantenere detailed application records for auditing.

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Shengmao (Anhui) Agricultural Technology Development Co., Ltd. è un fornitore ed esportatore di fiducia di prodotti agrochimici di alta qualità, specializzato in pesticidi, erbicidi, fungicidi e soluzioni per la protezione delle piante. Ha sede ad Anhui, in Cina

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