A Radroach is a type of mutated insect, found throughout Equestria. When the megaspells fell they mutated and grew in size. Compared to other wasteland wildlife, they're barely considered a real threat, but they will not hesitate to attack a pony, especially in large numbers.
Radroach.
~ 
Cazra
Radroaches continue to act like pests, much like their pre-war counterparts. They are usually found in great abundance, hiding in old pre-war ruins. They are fairly easy to kill, a pony can kill one just by stomping on it with their hooves.
In Other Stories[]
Project Horizons[]
It is mentioned that they are kept at bay in Tenpony Tower, by a special Talisman, called a pesticide Talisman.
The Ditzy Doo Chronicles[]
Ditzy Doo notes on occassion, that Radroaches don't bother ghouls, mainly due to their already rotted flesh.
Silence[]
They were seen in various abandoned buildings in New Hampshore by Zero's fellow teammate, Carbon Monoxide, who made easy work at killing a fairly large number of Radroaches, but also covering himself in Radroach filth in the process.
Notes[]
- Due to their relatively high numbers in abandoned buildings, Littlepip mistook a Hospital full of Hospital Horrors as being full of Radroaches.
- A Pesticide Talisman will prevent Radroaches from entering or breeding inside a building. (Project Horizons)
- Are the least mutated insects featured in the series and side stories.