harbringer of pestilence question.

[Kronox]

Could someone clarify how the harbringer of pestilence pet damage increase part works?

it says : your wrath increases the damage of diseases from you and your pet by 20% per stack.

What exactly is the interaction with the pet? pets as far as I am aware don't have diseases.
Does it buff any nature dmg from the pet?

thanks!

[Ironcloak]

@Kronox Some of the new Undead pets have diseases.