Getting rid of English ivy

I do gardening for folks, specifically poison ivy removal, a small one person (73) operation. Can anyone suggest ways to get rid of English ivy, pachysandra and periwinkle (myrtle)? I'm thinking that besides pulling it, continuously mowing and mowing it and/or weedwacking might really be a good way to go. One client recently moved into a house with lots of pachysandra and periwinkle and wants to replace them with native perennials.

Cardboard is on way to smoother it.

The preferred method is to top the ivy with 6"-12" of wood chips if those are available in your part of the world.  The key factor here is the 6" to 12" to block any sun rays.

A combination of beating it down hard and then covering it with wood chips will do the job. You will need a lot. Ivy and those other plants are all hard to kill.

Beat them down to bare earth with a mower/weedwacker/tiller/hoe/hogs/whatever, then cover deep with wood chips, at least a foot deep, and make sure you go all around, beyond where you think the edges are.

Keep an eye on it, and if anything green ever shows itself, rip it out and dump an extra foot of chips all around. In my experience poison ivy can come back the following year, from energy stored in the roots. So keep it covered deep all through this summer and winter, and past next year's growing season.

Some people use black tarps with the sun beating down in the heat of summer to bake the ground. This can work, but you need hours of direct hot sunlight for several weeks. If you have this, you can do it faster. But wood chips will improve the soil for long-term health. The black tarp method is more like a quick fix to kill everything.

Thanks! I'll suggest that to my client who has already used cardboard on an another area of her yard. I'm always rescuing cardboard from the curb so can provide that. It's a very suburban yard with grass and ornamentals but I think she's be open to this, although not sure where to put a whole bunch of chips in that pristine landscape!