methiocarb

Methiocarb is a carbamate insecticide and molluscicide used to control slugs and snails, as well as certain other pests, in agricultural crops, horticultural settings, and some home gardens. It is distributed in formulations such as baits or pellets designed to attract and kill mollusks and small pests while minimizing direct contact with crops.

Chemically, methiocarb belongs to the carbamate class and acts as a cholinesterase inhibitor. By inhibiting acetylcholinesterase, it causes an accumulation of acetylcholine at nervous junctions, leading to overstimulation of the nervous system, paralysis, and death in target organisms. The toxicity profile reflects sensitivity in non-target species, including birds, fish, and mammals, though the degree of hazard varies with exposure route and dose.

Commonly sold under trade names such as Mesurol, methiocarb is typically applied as rodent or snail bait in controlled settings, including greenhouse crops, vegetables, fruit trees, and ornamentals. Products are labeled with specific directions, rates, and safety precautions; use is highly regulated to reduce risks to non-target wildlife and water systems.

Toxicology and safety considerations emphasize that methiocarb can pose risks to humans and animals if misused. Inhalation or ingestion of bait can produce cholinergic symptoms; thus, protective equipment, child- and pet-proof storage, and adherence to label instructions are essential. Environmental concerns include potential toxicity to aquatic organisms and birds; therefore, applications near waterways or in habitats of sensitive wildlife require caution or are prohibited in some jurisdictions.

Regulatory status varies by country and region, with some areas restricting or banning certain methiocarb uses and others permitting restricted applications under strict labeling and safety controls.