Is It Allowed to Kill Ants?
Shaikh Al-Albānī, may Allāh have mercy on him, said:
There are many things that Allāh has created, like ants for example, that are not permissible to kill because there’s no benefit in killing them; but despite that, if some harm comes to Muslims themselves, their wealth and property, or their crops due to the presence of some animals or insects, then at that point it becomes permissible to kill [those animals or insects] from which such harm is coming about.
Silsilah Al-Hudá wa-l-Nūr, 389, 00:50:28.
Translated by Mikail ibn Mahboob Ariff