Pesticides that can no longer be used become waste. These obsolete, unwanted and banned pesticide becomes stocks. In rural areas, pesticide waste tends to build up wherever farming and pest control activities are practiced. They have accumulated in almost every developing country or economy in transition over the past several decades, posing threats to environment and public health. Stockpiles of old pesticides and associated waste, are often poorly stored, generating toxic chemicals leaks into the environment and contaminating water and soil. Wherever pesticides are used, they generate discarded pesticide containers. It is a common practice in developing countries to re-use pesticides containers for domestic purposes to store food or water. With people unaware of the dangers and health risks of reusing them, poisoning accidents, particularly involving children, are very common and can lead to severe illness and death.

FAO works closely with governments, industry, and civil society organizations around the world on developing solutions to prevent and dispose of obsolete pesticides and associated waste, and to manage empty containers in agriculture. FAO has developed an extensive training programme, published guidelines and other resources for countries to effectively and safely dispose of stockpiles; implement specific measures to avoid their re-accumulation; and ensure proper treatment of empty containers.

FAO has developed a series of tools and guidance material on pesticides related waste management.