My front lawn is about 25% grass, 10% bermuda grass and the rest is oxalis and white clover.

10 years ago when I re-did this lawn it had tons of bermuda grass in it. At that time I read to stimulate the bermuda grass to really grow by fertilizing and then watering well and waiting for it to grow a bit before using Round UP. That idea worked well.

I will do that again this time to the small area where the bermuda has returned.

My question is should I fertilize the oxalis and white clover before killing them with the appropriate weed killer?

Maybe they don't need to be stimulated to grow a lot as bermuda grass apparently does to get the best kill.

Thanks,
Ginny