Many mods give the player a whole host of new weapons and defenses to play with, but the poor biters are left behind. It's time they received an upgrade!
Now, large biters have a chance to give off an EMP blast when they die, temporarily disabling nearby turrets, radars, and logistic & construction robots. Large spitters also have a chance to EMP with their spit.
The larger the enemy and the higher the evolution factor, the bigger the chance of EMP is.
Gun turrets and flamethrower turrets are only disabled by EMP for half as long as laser turrets, to encourage using mixed defenses.
Big Worms have a high chance to cause a large EMP blast with their spit, to make turret creep more challenging.

Forum thread: https://forums.factorio.com/viewtopic.php?f=93&t=22294