Methidathion
Action/Use:
- Acaricide/Miticide
- ;
- Insecticide
Use:
Alfalfa weevil in alfalfa; scales in citrus; spider mites, bollworm, budworm, lygus bug, and whitefly in cotton. For use in almonds, artichokes, clover for seed, kiwifruit, mangoes, nursery stock, olives, pecans, pome and stone fruits, safflower, sunflower, and walnuts.
Identification
Common Name(s): Methidathion (ANSI, ISO, BSI, ESA); ; DMTP (JMAF)
Chemistry
Class: Organophosphate.
Properties: Colorless crystals. Melting point 39°-40°C. Volatility slight. Rapidly metabolized in plants. Readily soluble in acetone, benzene, and methanol.
Mode of Action / Resistance Management
Chemical Group: Organophosphate
Mode of Action: Acetylcholine esterase inhibitor
Action Group: IRAC Group 1
Registration
U.S.A.: U.S. EPA has cancelled all uses.
Environmental Guidelines
Hazards: Fish, Bee: Toxic
Water Solubility: 240 ppm at 20°C
Safety Guidelines
Signal Word: DANGER (EC), WARNING (WP)
Toxicity Class: I, II
Toxicity: Tech (Rat): Oral LD50 25-54 mg/kg. Dermal 1546 mg/kg; Inhalation 3.6 mg/l (4 h). (Rabbit): Dermal LD50 200 mg/kg. Nonirritating to eyes; slightly irritating to skin.
Handling/storage: Store in dry, well-ventilated, secure area out of reach of children and animals
Suppliers and Branded Products
Basic Producers:
Agro-Care Chemical Industry Group Limited (Agrocid*)
Agsin Pte. Ltd. (Supra*)
Fertiagro Pte. Ltd. (Fertidathion*)
Gowan Company (Supracide*)
Makhteshim Agan Group (Suprathion*)
Pilar AgriScience (Canada) Corp. (Pilarsuper*)
Syngenta (Supracide*, Ultracid*, Ultracide*)
Zagro Singapore Pte. Ltd. (Supra*)
Formulators' Trade Names:
Agro Chemicals Industries Ltd. (ACI) (Supera*)
Hektas Ticaret T.A.S. (Suprathion*)
Kuang Hwa Chemical Co., Ltd. (Medacide*)
Milenia Agrociencias S.A. (Suprathion*)
Polsas Chemicals and Machinery Co. (Bumerang*)
SAFA TARIM A.S. (Supramet*)
B.V. Industrie- & Handelsonderneming Simonis (Wopro-methidathion*)
SM-BT Co., Ltd. (SM* Methion)
VAPCO, Veterinary & Agricultural Products Mfg. Co. Ltd. (Ultracidin*)
Premix Products:
+ Buprofezin
- Fire* — Wangs Crop-Science Co., Ltd.
Discontinued Names:
Datimethion*
Supracidin*
Ultra*
