Watch Joe's report...

They're a familiar site in gardens and parks up and down the UK, but there are worries that bee numbers are being hit by chemicals used by some farmers.

A group of MPs is calling on the government to ban a number of these pesticides, which are used to protect crops from insects.

Some of the sprays contain chemicals that have been linked to the deaths of bees.

The European Union has called for a ban on these chemicals too.