We have so many places here with massive bamboo growing. I put it down to people dumping bamboo out bush and it surving and growing.Plenty of good organic products come in bottles. I’ve only had 3 spotted red spider mites but that was after I got clones given to me and I didn’t put them in quarantine first other than that I know we have Broad’s but I haven’t come across them and I’m not sure if we have Russets over here.
Depending where you are you might find collecting IMO a bit tricky conventional farming practices really fucked up the soil life in 90% of farmable land,try and find a big patch of bamboo I find that’s where I get good collections most of the time