Table 2.
Most frequently used pesticides (active ingredients; ordered from most frequently use to the least frequently used) in agricultural farms in the Zarcero County, Costa Ricaa.
| Active ingredient | Commercial names | Chemical subgroup | Group of action |
| Chlorothalonil | Bravo, Bravonil, Knight, Talonil, Thalonex, Folio Gold, Odeon | Chloronitriles | Fungicide |
| Benfuracarb | Oncol | Carbamates | Insecticide |
| Mancozeb | Dithane, Mancol, Ridomil, Titan | Dithiocarbamates | Fungicide |
| Boscalid | Bellis, Endura | Pyridinecarboxamids | Fungicide |
| Carbendazim | Afin, Cozaid, Crotonox, Carbendazina | Benzimidazoles | Fungicide |
| Acephate | Acefate, Orthene, Yucal | Organophosphates | Insecticide |
| Phorate | Forato, Thimet, Thimetoato, Timefor | Organophosphates | Insecticide |
| Fenamiphos | Fenemiphos, Nemacur | Organophosphates | Insecticide |
| Chlorpyrifos | Agromil, Batazo, Baygon, Lorsban, Solver, Terminator, Swat | Organophosphates | Insecticide |
| Glyphosate | Atila, Evigras, Ranger, Round Up | Glycine derivatives | Herbicide |
| Carbofuran | Carbodan, Curator, Furadan | Carbamates | Insecticide |
| Cypermethrin | Best, Cascabel, Cipermetrina, Combat, Cruz Verde, Tigre, Excalibur | Pyrethroids | Insecticide |
| Propamocarb | Acrobat CT, Previcur, Proplant, Prevalor | Carbamates | Fungicide |
| Paraquat | Gramoxone, Preglone, Rafaga | Bipyridiliums | Herbicide |
| Propineb | Antracol, Inicol, Taifen | Dithiocarbamates | Fungicide |
aModified from: Ramírez et al, 2016 [32]. Pesticides are ordered from most frequently used to the least frequently used.