When is a product defined as a plant protection product?

The European Regulation on plant protection products 1107/2009 uses the following definition: 'products, in the form that they are supplied to the user, consisting of or containing active substances, safeners or synergists, and intended for one of the following uses:

• the protection of plants or plant products against all harmful organisms (...)
• influencing the life processes of plants, such as substances influencing their growth, other than as a nutrient;
• the storage of plant products (...);
• the destruction of undesired plants or parts of plants (...);
• the limitation or prevention of undesired growth of plants (...).