Ioxynil
Action/Use:
- Herbicide
Use:
Postemergence for seedling weeds (bindweed, buttercup, chickweed, cornflower, dandelion, fat hen, groundsel, mayweed, mustard, plantain, shepherdspurse, smartweed, speedwell, etc.) in cereals. Belgran*, Certrol* DS for sugarcane. Actril* DS for sugarcane, citrus, rice, and oil palm. Iotox* for sports turf.
Identification
Common Name(s): Ioxynil (ISO, BSI, WSSA)
Chemistry
Properties: Tech: cream colored. Colorless solid. Melting point 212-213.5°C (phenol), 59-60°C (octanoate). Solubility (%w/v at 20°-25°C): sodium salt: acetone 12, tetrahydrofurfuryl alcohol 65; octanate: methanol 9, ethanol 8, n-propanol 15, acetone 10, cyclohexanone 50, benzene 65, methylene chloride 70, chloroform 65, carbon tetrachloride 60, naphtha 70.
Mode of Action / Resistance Management
Chemical Group: Nitrile
Mode of Action: Inhibition of photosynthesis at photosystem II
Action Group: HRAC Group C3; WSSA Group 6
Registration
U.S.A.: Not marketed.
Outside U.S.A.: Axall* in New Zealand; Brittox* in Ireland; Maytril* in Ethiopia and Kenya.
Environmental Guidelines
Hazards: Fish: LC50 (48 h) (soft water) 3-4 mg/l (harlequin). Bee: Slightly toxic
Water Solubility: % w/v at 20°-25°C: Ioxynil sodium salt, 14; ioxynil octanoate, insoluble
Safety Guidelines
Signal Word: WARNING
Toxicity Class: II
Toxicity: (Rat): Oral LD50 phenol 110 mg/kg, octanoate 390 mg/kg
Suppliers and Branded Products
Basic Producers:
Bayer CropScience (Actril*, Oxytril*, Totril*)
Makhteshim Agan Group (Iotril*)
Formulators' Trade Names:
B.V. Industrie- & Handelsonderneming Simonis (Wopro-ioxynil*)
VAPCO, Veterinary & Agricultural Products Mfg. Co. Ltd. (Hawk*, Hocks*)
Premix Products:
+ Benazolin+ Bromoxynil
- Asset* — Bayer CropScience
+ Bentazone+ Dichlorprop-P
- Basagran* Ultra-P — BASF Corporation
+ Bifenox+ Mecoprop
- Foxpro* — Bayer CropScience
+ Bifenox+ Mecoprop-P
- Charade* — Makhteshim Agan Group
- Foxpro* D+ — Makhteshim Agan Group
- Foxtril Super* — Makhteshim Agan Group
+ Bromoxynil
- Briotril* — Makhteshim Agan Group
- Luxet*
- Oxytril* CM — Bayer CropScience
+ Bromoxynil+ Ethofumesate
- Nortron* Leyclene — Bayer CropScience
+ Bromoxynil+ Fluroxypyr
- Trilin* — Makhteshim Agan Group
+ Bromoxynil+ Isoproturon
- Doublet* — Bayer CropScience
- Tromb* — Bayer CropScience
- Twin-Tak* — Bayer CropScience
+ Bromoxynil+ Isoproturon+ Mecoprop
- Terset* — Bayer CropScience
+ Bromoxynil+ Mecoprop
- Axall* — Bayer CropScience
- Briotril* MS — Makhteshim Agan Group
- Brittox* — Bayer CropScience
- Maytril* — Bayer CropScience
- Oxytril* M — Bayer CropScience
- Trionyl* — Agriphar S.A.
+ Bromoxynil+ Mecoprop-P
- Image*
+ 2,4-D
- Actril* DS — Bayer CropScience
+ Dicamba+ Dichlorprop
- Banlene Solo* — Bayer CropScience
+ Dichlorprop
- Actril* S — Bayer CropScience
+ Dichlorprop+ MCPA
- Actril* 3 — Bayer CropScience
+ Dichlorprop-P
- Novergazon* EVN — Nufarm Americas Inc.
+ Isoproturon
- Astrol* — Bayer CropScience
+ Isoproturon+ Mecoprop
- Arelon* Kombi — Bayer CropScience
- Belgran* — Bayer CropScience
- Galop* — Bayer CropScience
- Isotril* — Bayer CropScience
+ Mecoprop
- Auroch*
- Certrol* H
- Ektar*
- Iotox* — Bayer CropScience
- Maestro* II
- Mylone* — Bayer CropScience
Discontinued Names:
Anitop*
Aurigal*
Basagran* Ultra
Erasol*
Post-Kite*
Tetroxone* M
Topkill*
Vega* Plus
