Tomato plant with red spider mite (I think)

RSM - red spider mite - is almost invisible to the naked eye - you can really only see them with a magnifier, so maybe not the bug you can see? They also make a very fine webbing which is usually visible between the stem and leaf petioles. Not easy to eradicate on edible plants, although constant spraying of dilute washing-up liquid might give some control. I suspect your bug is something else, there are a few other very small red mites ( harvest mites ) which are quite harmless. If they move quickly they are usually predators and harmless, it's the slow moving bugs that are usually pests. Any chance of a photo?

Thank you*Nan*, I did actually advise him to spray with diluted washing up liquid, not sure if I can get a photo, will see!

I have advised him that we are very unlikely to be making chutney, but it would be good to end up with a few edible tomatoes!

I washed blackfly off a dahlia with the hosepipe. It seemed to work well. I just avoided the flowers.