Kill specific mobs in gatherer profile

[insanity 11]

Hey,

First of all I would like to point out that this is for vanilla.

I made a gatherer profile that is running to most herb-node locations in a zone. 
My problem is that some of the nodes are "guarded" by 4-5 mobs. I would like to clear these mobs before looting this herb.
How can I manage that?

I dont want to use the "Dismount when entering combat" feature, cause that would slow my route down drastically.

[Droidz 2734]

Hello, use grinder bot