Common Name: Thiodicarb 

Molecular Formula: C₁₀H₁₈N₄O₄S₃ 

Molecular Weight: 354.46 

Form: Pale tan Crystals 

Melting Point: 173-174℃ 

Density: 1.44 

Solubility: In water 35 mg/l (25℃). In Dichloromethane 150, in Acetone 8, in Methanol 5, in Xylene 3 (all in g/kg, 25℃).

Stability: Stable at pH 6, rapidly hydrolysed at pH 9 and slowly at pH 3 (DT50 c. 9 d). Aqueous suspensions are decomposed by sunlight. Stable up to 60℃. 

- Biochemistry:

Cholinesterase inhibitor. Inhibit cholinesterase in insects and make insects lethal. But this is a reversible inhibition. If the insect is not poisoned and killed, the enzyme can be decarbamylated and recovered.

- Mode of Action:

Insecticide with predominantly stomach action, but also limited contact action. As a seed treatment, rapidly translocated systemically through the plant. Molluscicide which provokes paralysis and death.

- Uses:

Control of all stages of major Lepidoptera and Coleoptera pests and some Hemiptera and Diptera on cotton, soya beans, maize, vines, fruit, vegetables, and many other crops at 200-1000 g/ha; seed treatment rates are 2500-10 000 g/tonne. Also used as a molluscicide for control of slugs in cereals and oilseed rape.

- Compatibility:

Incompatible with acidic and alkaline substances, certain heavy-metal oxides, and salts of certain fungicides such as maneb, mancozeb (except WP formulations), cuprammonium carbonate, or Bordeaux mixtures. Not miscible with vegetable oil diluents.

- Toxicity: 

Thiodicarb is a moderately toxic amino acid ester insecticide, safe to fish and birds, no chronic poisoning, no carcinogenic, teratogenic, or mutagenic effects, and safe to crops.

- Feature:

Thiodicarb is mainly stomach toxic, almost no contact effect, no fumigation and systemic effects, strong selectivity, and a short residual effect in the soil.

- Application:

This species has special effects on lepidopteran pests, and has an oviogenous effect. It is not effective against cotton aphids, leafhoppers, thrips and mites. It can also be used to control Coleoptera, Diptera and Hymenoptera pests.

- Instructions

1. Prevention and control of cotton bollworm and cotton pink bollworm During the egg incubation period, use 50-100g of 75% wettable powder per acre and spray 50-100kg of water.

2. Control of Chilo suppressalis and Chilo suppressalis 100-150g of 75% wettable powder per mu, spray 100-150kg of water.