This exact same issue was present on my hops, and after a lot of investigation i found to be riddled with mites (especially the red spider mite). Grab a suspect leaf, put it over a sheet of white paper and tap the leaf. Inspect the paper and be prepared for a battle if it is mites.I’m having the same thing on a couple of my hops. I’d agree with Dan’s - just the season - but I can’t say for sure. I’ve had those bugs for three years running, without the yellowing, etc, so I don’t think it’s them.
Did you check for mites? Mite damage looks a bit like the leaves are dying off.My Hallertau looks like it's died off already. It produced about 5 flowers that I could see. I haven't been able to get around here to water them much lately which probably hasn't helped as the rain hasn't been around for a couple of weeks. Not sure what to do with it really, its best yield was in its first year in a pot, last season it dropped off and now this year hardly anything. The Cascade plant didn't produce as much either but it grew really well and I still got over 100g dry from it.
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Seem to be on top of it. Resprayed a few days later to catch the next gen and looks to have calmed down [emoji4]did you get those vine hoppers sorted almonte? might need a follow up spray in a few days as eggs hatch and next generation of larvae come onto the scene.
Cut off all the crap, sick, weathered, dead leaves gives encouragement for new growth. That's all you can do as well as feed them nicely and hope for a late harvest. I got sunburned Red Earth in the last few 40c+ weather. Also sunburned chillies that is a new thing.