Raspberries and bindweed

Good morning and welcome! Bindweed is a pain, I would cut the stems down to ground level and carefully pull away whatever you can without damaging the plants, the rest will die in situ. The bindweed roots are usually fairly close to the surface but expand laterally so are likely to be tangled with the Raspberry roots meaning that even stems away from the plant are likely to be totally immovable. For this reason keep cutting the vines down to the soil until you cut the canes then embark on a more thorough dig out. You could surround the plants with cardboard to deprive the bindweed of light but it will always shoot through any gaps so keep it cut down. At the end of the season you may even want to think about taking the plants up and digging it all out to prevent future flare ups but  this would involve sieving the soil to get every last piece of root out as even a tiny piece left in the ground can grow back.

The alternative is using a chemical weedkiller but I don't use these, so another forumite would have to advise on that one.

Good luck!

Good advice so far. When it appears again in spring, and it will no matter that you think you've got it all out - wrap it around a cane/stick away from the raspberry growth, if you can,and use glyphosate weedkiller, the kind you paint on the leaves is the easiest to use without collateral damage. https://www.amazon.co.uk/Evergreen-Garden-Care-Ltd-Weedkiller/dp/B005ZALTF0

These weeds are difficult to control with glyphosate as by the time they sprout in the Spring the raspberries are also starting to grow. I know, I have tried it. In fact it worked well but there were a few gaps after that.

These raspberries have probably been there a long time. The will have virus and will not be at their best. You are probably just as well to plant a new row. Bare root canes are not expensive. Avoid accepting gifts of offsets from other plotholders, they will almost certainly have virus.

Keep the old row for next years fruit and then dig them out. You will get a small crop from the new ones, by year three they will be in full flow.

Plant viruses show as an irregular green and yellow "mottled" pattern on the leaves and not to be confused with a shortage of feed where the green and yellow pattern follows the veins of the leaf. Personally, if you think they look healthy and you like the variety, I'd dig up the strongest ones and put them into pots. This will give you chance to have a really good dig over your bed using a fork rather than a spade so you don't chop the roots up and make more! If you do it now, there should be enough warmth in the season for any re-growth which you can remove. I'd also get some compost, manure, mushroom compost or topsoil (and coarse grit and sand if your soil is heavy) so you can dig it into the beds.