Q.Blackberries in pots and chiggers
We are trying to grow blackberries in pots. Blackberries grown in the wild attract chiggers. Will the blackberry plants we have in pots on our patio and deck also attract chiggers? We live in Texas which does have a chigger problem. If chiggers naturally gravitate to blackberries, how can we protect our plants from them?

I found no reports of potted commercial Blackberry plants attracting chiggers.
Here is a link with container care information.
https://www.gardeningknowhow.com/edible/fruits/blackberries/container-grown-blackberries.htm