Hello I am new here. just got my first juniper bonsai. I live in Nebraska and don't think I can leave the tree out all winter. any suggestions?
also I have a crabapple in my yard that has rust so I am fairly certain that if I leave my tree outside it will get cedar apple rust.
read that junipers can not live inside.

Read a couple of topics, this is a regularly asked question.
Junipers must be outdoors. They do not belong indoors and will die.

'Some junipers are not sensitive to this fungus, but if you have one that is: get rid of the crabapple or the juniper.

paulsan wrote: also I have a crabapple in my yard that has rust so I am fairly certain that if I leave my tree outside it will get cedar apple rust.

This would mean you have junipers in the region too. Rust is an annual occurance on the rosaceae host, as far as I know. So it gets infected from another juniper.