Selective and systemic herbicides derived from urea. Effective for cereal and vegetable
crops, also used for weed control in non-cultivated areas.
Animals most affected
Cattle, dogs, (other species).
Widely used in a large variety of forms and preparations: wettable (dispersible)
powder, thickened liquids, microgranules, granules and emulsions. Poisoning follows
direct ingestion of the agrochemical product. This, however, is rare as a massive
quantity of the substance needs to be ingested for poisoning to occur.
Ingestion of forage plants treated with the chemical under normal conditions of use
does not result in poisoning.
Compounds in this category
Chlorotoluron, chloroxuron, diuron, isoproturon, karbutilate, linuron, metabenzthiazuron,
metobromuron, metoxuron, monolinuron, neburon, tebuthiuron, thiazafluron.
Compounds of low toxicity, considered non-toxic to fish. For toxic doses, see entries
for individual compounds.
periods of depression, with prostration, anorexia, motor incoordination;
occasionally respiratory difficulties;
haematuria and hypersalivation may occur.
Generally good prognosis.
Non-specific and not very marked:
congestion of the gastrointestinal tract, liver and kidneys;
haemorrhages on the surface of the heart and lungs.
No antidote. Symptomatic care only, promote excretion.