A dirty wheelie bins and food caddy could attract

Ants

Ants only come into your wheelie bins to look for food. 

They are attracted to anything that’s sweet and sticky, 

Flies

 The fly lays eggs, which turn into maggots. 

Sometimes, it may seem like the maggots appear from nowhere, but it's just that you didn't notice the fly

Maggots

"Maggot" is another word for larva. After a pupal stage, maggots turn into flies.

Wasps

Open bins will attract greedy wasps looking for a cheap, sweet meal. Keep you bins away from the house and make sure the lid is on properly.

Rats

The most common species within the UK is the common or brown rat, which is physically strong, can jump up to three meters and can squeeze through a gap of less than 2.5 cm. Rats will seek out any environment that provides food, water and shelter.

Foxes

The numbers of foxes living in an area is totally dependant on the availability of food. The more food there is the more foxes there will be.