List of pesticides

List of low-impact pesticides

Low-impact pesticides belong in Class 5 of the provincial government's Réglement sur les permis et les certificats pour la vente et l'utilisation des pesticides.

Pesticides included in Class 5 do not require any preparation, they are ready to use. They can be put on the market if their volume or their weight is equal to or less than a litre or kilogram.

The low-impact pesticides are those authorized inside and outside day-care centres and primary and secondary schools (Pesticide management code). Moreover, Ville de Longueuil's pesticide application by-law permits only the application of the products on the soil of sensitive areas and adjacent areas (parks, day-care centres, schools, churches, health establishments).

Authorized active ingredients


  • Borax
  • Acetamipride
  • Insecticide soap
  • Siliceous dioxide (diatomaceous earth)
  • Boric acidMethoprene
  • Disodium octaborate tetrahydrate
  • Iron phosphate
  • Spinosade


  • Sulphur
  • Calcium sulphur or calcium polysulphur


  • Acetic acid
  • Mixture of capric and pelargonic acids
  • Weedkilling soaps

All approved bio-pesticides

List of pesticides forbidden at all times

Forbidden active ingredients


  • Carbaryl
  • Dicofol
  • Malathion


  • Benomyl
  • Captane
  • Chlorothalonil
  • Iprodione
  • Quintozene
  • Methyl thiophanate


  • 2,4-D esters
  • 2,4-D form acid
  • 2,4-D amine salts
  • 2.4-D sodium salts
  • MCPA esters
  • MCPA amino salts
  • MCPA potassium or sodium salts
  • Mecoprop form acid
  • Mecoprop amine salts
  • Mecoprop potassium or sodium salts
  • Dimethyl chlorthal