Toxicity in the pesticides for bees
Source: INTA Mendoza
In the chemical products market, so necessary for the control of plagues and illnesses, some are dangerous to hives and its habitants. Because of this, the beekeeper must have knowledge of the chemicals that could kill his/her bees.
In
general it is necessary to remind the beekeepers –they are the most affected- as well
as the agricultural producers, the importance of reading the label of the product to be
used, so to avoid any damage; in this label we can find the level of danger to bees.
Highly toxic
The following are highly dangerous products for bees due to their levels of toxicity. It is recommended to move the hives at least 2000m away from the place where these products are going to be sprayed and to wait at least 10 days before moving the hives back. This information is very important for beekeepers that offer pollination services.
| Active Ingredient | Name | Observations |
| Azinfos metil | Cotnion. Gusathion. Insecticide-acaricida | By contact, ingestion of fruits w/pits and seed (tomato) |
| Carbaril Sevín 85 S | Carbaryl. Insecticide. Toxic ULV |
By contact, ingestion.
Aerial application. |
| Clorpirifos | Lorsban. Insecticide. | Contact/ingestion/inhalation, alfalfa, sunflower, fruits w/ seeds. |
| Diazinon . |
Diazol. Insecticide
liquid Toxic |
contact, ingestion,
inhalation onions, peach trees, apple trees. |
| Dimetoato Perfekthion. | Rogor L Insecticide |
contact, ingestion, alfalfa, peaches, apples, pears |
| Fosmet Imidan (contacto/ingestión) | Fosmet Imidan Insecticide-acaricide | Alfalfa, fruits w/pits and seeds |
| Mercaptotion Malathion. | Agrithion. Insecticide | contact, ingestion Alfalfa, fruits w/pits and seeds, sunflower |
| Metidation Supracid. | Suprathion. Insecticide | contact, ingestion. Alfalfa, peaches, fruits w/seeds. |
Non-toxics
These products do not affect the bees. It is recommended for beekeepers that offer pollination services to advise its usage to yield producers and seed producers (clients).
| Active Ingredient | Name | Observations |
| Mineral Oils | Acemin R. Acemver R. Insecticide-acaricida |
Contact with Fruits w/pits and seeds |
| Amitraz | Mitac 20 CE. Acaricida | Contact, ingestion Fruits w/seeds |
| Bacillus thuringiensis | Dipel. Insecticide biológico | Ingestion alfalfa, fruits, sunflower |
| Clofentezine | Clofentezine Acaristop 50 SC. Acaricida | Contact, in fruits w/seeds |
| Dicofol Kelthane | Acarin. Acaricida |
Contact, in fruits w/seeds |
| Fenbutatin óxido | Torque 55. Acaricida | Contact W/apple trees |
| Quinometio-nato | Morestan. Fungicida-acaricida | Contact/preventive/
healing fruits w/pits and seeds |
Non-toxic under certain conditions
Slightly toxic if sprayed with temperatures under 7.21° C. If the temperature is superior to 15.5° C, the active ingredients gain their toxicity for the bees, this is why is not recommended under these conditiones.
| Active Ingredient | Name | Observations |
| Abamectin sobre este insecto | Agrimec. Vertimec. Insecticide-acaricida |
Contact/ingestion. It degrades fast on melon, watermelon and pear leaves and it has no residual action. |
| Carbaril Sevín. | Carbaryl, Insecticide. Formulaciones líquidas | Contact, ingestion fruits w/pits and seeds |
| Endosulfan | Thionex. Thiodan. Insecticide |
Contact, ingestion. Innocuous until a concentration of 1.5% Alfalfa, fruits w/seeds, sunflower |
| Esfenvale-rato | Halmark 10, Sumi-Alpha. Insecticide | Contact/ingestion sunflower, apple and pear trees |
| Formetanato clorhidrato |
Dicarzol 50 PS. Acaricida | Contact, ingestion Citrus |
| Imidacloprid Se aconseja como aficida |
Confidor. Insecticide (sistémico) | Fruits w/pits |
| Oxamil | Oxamil Vidate. Acaricida | Contact, ingestion fruits w/seeds |
| Permetrina | Permetrina Ambush. Pounce. Insecticide |
Contact, ingestion alfalfa, fruits w/pits and seeds sunflower |
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