Pollination is a particular form of fertilization in plants in which pollen is transferred from one part of the plant to the other.

Fertilization is more broad and applies to any organism that have male and female reproductive cells fuse to form a new organism.

So all pollination is fertilization, but not all fertilization is pollination. For instance in humans, fertilization occurs when a sperm and egg cell fuse, but this process is not pollination.

Pollination does not differ from fertilization. Pollination is fertilization for plants.

Fertilization occurs when a male cell and female cell (gametes) fuse to produce an embryo (in animals) or seed (in plants). Pollination describes plant fertilization. During pollination, male pollen comes into contact with female cells to produce seeds.