What is it called when an insect is taken over by a fungus?

Question

I saw it happen on a nature show but the show was in French. The insect eats the fungus then the fungus will use the insect and grow out of it.

Answer 1

actually fungus are parasites that means they depends on other animals for their feeding. Animals actually dont seek for fungus to eat they might take in fungus while eating other dead animals.

THANX

Answer 2

It is called fungal disease of insect, when it happens naturally. When humans use the fungus on insect pests, it is called biological control.

    Some insect species, including many pests, are particularly susceptible to infection by naturally occurring, insect-pathogenic fungi. These fungi are very specific to insects, often to particular species, and do not infect animals or plants.  Fungi have considerable epizootic potential and can spread quickly through an insect population and cause its collapse. Because fungi penetrate the insect body, they can infect sucking insects such as aphids and whiteflies that are not susceptible to bacteria and viruses.

    Several fungal species have potential as microbial insecticides and, in some countries, are commercially available in formulations that can be applied using conventional spray equipment.