Bane of Arthropods is an enchantment in Minecraft that is applied to a weapon and increases damage to arthropod (jointed) monsters, namely: spiders, blue spiders, bees, silverfish and endermites.
Additional information about the Bane of Arthropods enchantment
Each additional level of the Bane of Arthropods enchantment on a sword or axe adds 2.5 (♥ × 1.25) additional damage to each hit on arthropods only.
The enchantment also inflicts Slowness IV on an arthropod when hit, with a random duration between 1 and 1.5 seconds at level I, increasing the maximum duration by 0.5 seconds each level, up to 3.5 seconds with Bane of Arthropods V.
The Sharpness enchantment, Cleaving enchantment, and Bane of Arthropods enchantment are mutually exclusive. However, if commands are used to have two or more of these enchantments on the same item, the effects stack.