Chemicals used to control pests. Use this tag with questions about how to choose and use pesticides with different plants.
Pesticides can be synthetic or organic such as Neem oil.
The use of pesticides on birds is tightly controlled in most jurisdictions.
Similarly, other pesticides have their dangers. Mammal pesticides (e.g. rat bait) can poison pets and children; herbicides can poison desirable garden plants; and insecticides will kill many beneficial insects. Most are poisonous to humans.