Clopyralid
Action/Use:
- Herbicide
Use:
A highly translocated, selective herbicide active primarily through foliage of broadleaf herbaceous weeds. For control in barley, canola, corn, mint, oats, wheat, sugarbeets, spinach, turnips, CRP, Christmas tree plantations, fallow land, grasses grown for seed, noncropland, and permanent grass pastures. SureStart* for use only on herbicide-tolerant field and silage corn. Momentum* for use on barley and wheat (spring, durum). Sendero* for control of mesquite.
Identification
Common Name(s): Clopyralid (ANSI, BSI, ISO draft)
Chemistry
Properties: Colorless crystals. Melting point 151-152°C. Solubility (20°C) in acetone 153 g/kg; cyclohexanone 387 g/kg; xylene 6.5 g/kg.
Mode of Action / Resistance Management
Chemical Group: Pyridine carboxylic acid
Mode of Action: Action like indole acetic acid (synthetic auxins)
Action Group: HRAC Group O; WSSA Group 4
Registration
Outside U.S.A.: Dow Shield* in UK. Momentum* in Canada.
Environmental Guidelines
Soil Particle Adsorption: Clopyralid has seeping or leaching capabilities
Water Solubility: 1,000 ppm
Safety Guidelines
Signal Word: DANGER
Toxicity Class: I
Toxicity: (Rat): Oral LD50 4300 mg/kg. (Rabbit): Dermal LD50 >2000 mg/kg. Causes eye damage, skin irritation
Handling/storage Cautions: Store above 28°F or warm to 40°F and agitate before use
Protective Clothing: Protective eyewear.
Suppliers and Branded Products
Basic Producers:
Agriphar S.A. (Cliophar*)
Albaugh, Inc. (Spur*)
Dow AgroSciences LLC (Dow Shield*, Lontrel*, Reclaim*, Stinger*, Transline*)
Fertiagro Pte. Ltd. (Fertrel*)
Nufarm Americas Inc. (Clean Slate*, Garrison*)
United Phosphorus Ltd. (Clopyr*)
Formulators' Trade Names:
Hektas Ticaret T.A.S. (Phaeton*)
B.V. Industrie- & Handelsonderneming Simonis (Wopro-clopyralid*)
Stockton Agrimor AG (Boss*)
Willowood Ltd. (Pirate*, Trelan*)
Premix Products:
+ Acetochlor+ Flumetsulam
- SureStart* — Dow AgroSciences LLC
- TripleFLEX* — Monsanto Co.
+ Aminopyralid
- Sendero* — Dow AgroSciences LLC
+ Benazolin
- Benazalox* — Bayer CropScience
+ Bensulfuron-methyl
- Ke Caote* — Nanjing Red Sun Co., Ltd.
+ 2,4-D
- Commando* — Albaugh, Inc.
- Curtail* — Dow AgroSciences LLC
- Cutback* — Nufarm Americas Inc.
+ 2,4-D+ Dicamba
- Millennium Ultra* 2 — Nufarm Americas Inc.
+ Flumetsulam
- Hornet* — Dow AgroSciences LLC
+ Fluroxypyr
- Colt* — Loveland Products, Inc.
- Momentum* — Viterra Inc.
- TruSlate* — Nufarm Americas Inc.
- WideMatch* — Dow AgroSciences LLC
+ Fluroxypyr+ MCPA
- Hat Trick* — Loveland Products, Inc.
- TruSlate* Pro — Nufarm Americas Inc.
- Weld* — Winfield Solutions, LLC
+ MCPA
- Commando-M* — Albaugh, Inc.
- Curtail* M — Dow AgroSciences LLC
- Cutback* M — Nufarm Americas Inc.
+ Triclopyr
- Brazen* — Nufarm Americas Inc.
- Confront* — Dow AgroSciences LLC
- Redeem* — Dow AgroSciences LLC
Discontinued Names:
Accent Gold*
Aurigal*
Battleship*
Galaxy*
Millennium Ultra Plus*
Pyramid*
Scorpion* III
Sinder*
Tango*
