Hello, i have what I think are assassin bugs on my needle plants and my Jerusalem artichokes, my hollyhocks and other plants. Some are black and red and some are black with a white stripe and saddlebags on their back legs. What are these bugs? Are they good or bad?

If you see these bugs in groups, they are not assassin bugs as they are insect predators and will also eat one another. Some types of stink bugs could fit your description.

This link gives images of assassin bugs

https://www.google.com/search?...

This one shows ladybug nymphs, often confused with assassin or wheelbugs

https://www.google.com/search?...

Bedbugs are small, brownish insects. They tend to live in groups in hiding places. To get rid from them, its better to contact the pest control services like pest control Roseville CA as they are experts in solving these problems.