Berry Plant Purchases and Transplanting Question

I've never met a berry I didn't love and, once I get relocated and settled, I plan to grow so many berries folks'll think I'm crazy as a betsy bug!

But, one thing concerns me from watching homesteaders and gardeners on the YouTube.  I've heard several of them say the berry plants they either purchased, or were given, and planted in their yards, came with invasive and prolific weed species that they're having a devil of a time trying to get rid of.  (Like the mulberry weed, which has nothing to do with the mulberry fruit.)  Some of the folks even said they came with a pest they never had to deal with in the past either.  

I'm gonna have enough to contend with without blindly bringing in new problems.  Has this been anyone's experience, too?

Hello fellow berry fan Emmett,
I avoid this problematic by bringing in cuttings of the berries I want. It has the advantage of being way cheaper, (usually free), but you might be a little bit later.
Good luck with your berries

I have not experienced invasive plants coming in with berry plants.

A knowledge of reputable growers might be the key.

what sort of berries? unless i’m producing them myself, i prefer to get things like blueberries as bare-root plants. not a lot of places for beasties or invasive seeds to hide that way. have definitely not had had surprises coming from bare-roots.

Anytime you bring something in from outside your property there is a risk of unwanted passengers. As others have said minimising the soil brought in will reduce the risk of weeds (bare root plants tend to be cheaper too!). In the UK you can buy berry plants from certified virus free growers, which reduces the risk of some unwanted diseases. I'm not sure if a similar scheme operates in the US.
I also have grown some shrubs and trees from seed. You have a longer wait for production, but the genetic variation in the resulting plants can be an advantage for less improved fruits, or ones that need no improving from the wild forms.

never had a problem, but most have been bare root.