Can you identify the problem with these golden wax bush beans

Question: These bush beans have turned increasingly yellow and though they have started to produce - each day they are getting worse. I thought maybe rust or spider mites but the rest of my greenstalk planter looks great ( these are top 2 levels) and I don’t see any bugs. They were my first succession so I thought I’d go ahead and let them come in and harvest then remove them. Leaves are starting to turn brown, dry out and fall out.

responder: An Ask Extension Expert Replied May 23, 2023, 7:26 PM EDT
response: sorry, but I cannot tell anything from the description or photo. look at the base of the stem. Is there any discoloration or white growth on the stems and surrounding soil?

responder: The Question Asker Replied May 23, 2023, 8:47 PM EDT
response: Get Outlook for iOS    From: ask=<personal data hidden> <ask=<personal data hidden>> on behalf of Ask Extension <<personal data hidden>> Sent: Tuesday, May 23, 2023 7:26:29 PM To: Marida Bruggeman <<personal data hidden>> Subject: Re: Can you identify the problem with these golden wax bush beans (#0101605)

responder: The Question Asker Replied May 23, 2023, 11:29 PM EDT
response: I don’t see any white spots but was able to get some better pictures.

responder: An Ask Extension Expert Replied May 24, 2023, 8:49 AM EDT
response: I am pretty sure it is a nutrient deficiency - quite possibly potassium. Are you growing in compost or potting soil?

responder: The Question Asker Replied May 24, 2023, 11:01 AM EDT
response: Interesting - I’m growing in a container - stacking greenstalk planter and it’s the top layers. Soil has potting soil, worm castings, and melorganite at planting. Every 2 weeks I water in either Morbloom 0-10-10 or Miracle gro (12-8-8?)    Remaining plants in other 5 layers look great except for a chewed spot here or there.    This shows the other three greens talks I have - there is a peek of my problem child there at the back.    Below these bush beans I have edamame and patio variety tomato.    If you are right it could be that since it gets waters by an internal channel - top to bottom- nutrients leeched down.    Looks like disease- but I’m a 2nd year gardener so I could be totally wrong.    What do you think and what would you try? I’m harvesting beans from these daily and they will get yanked out soon - but I’m concerned about the rest of the planter. When I pull these I will amend the soil before replanting.    I love this ask extension service!  Marida          Get Outlook for iOS    From: ask=<personal data hidden> <ask=<personal data hidden>> on behalf of Ask Extension <<personal data hidden>> Sent: Wednesday, May 24, 2023 8:49:19 AM To: Marida Bruggeman <<personal data hidden>> Subject: Re: Can you identify the problem with these golden wax bush beans (#0101605)

responder: An Ask Extension Expert Replied May 24, 2023, 11:51 AM EDT
response: Marida, the only way to get to the bottom of this is with a $6 tissue analysis. I would contact the Beaufort County extension office about bringing in a sample to be sent to the lab. Bean samples should be the 3 uppermost mature leaves per plant (1 leaf has three leaflets) Beaufort Extension Office Phone:<personal data hidden> Mailing Address18 John Galt RoadBeaufort, SC 29906

responder: The Question Asker Replied May 24, 2023, 12:23 PM EDT
response: Ok - Since they will only be around another week or so I’ll just move on. I appreciate the help!  Marida      Get Outlook for iOS   From: ask=<personal data hidden> <ask=<personal data hidden>> on behalf of Ask Extension <<personal data hidden>> Sent: Wednesday, May 24, 2023 11:51:57 AM To: Marida Bruggeman <<personal data hidden>> Subject: Re: Can you identify the problem with these golden wax bush beans (#0101605)