For pic 1, looks like possibly potassium and/or phosphorus deficiency. Manganese deficiency appears possible due to vein yellowing on mostly newer leaves.
2nd pic seems to be bacterial wilt (specifically Pseudomonas solanacearum).. Or copper defiency (Which iirc shouldn't usually affect potatos....). Cut a cross section of the stem and see if it is discolored and brown. Post pictures. See: https://plantpath.ifas.ufl.edu/rsol/Trainingmodules/BRPotato_Module.html
>Pseudomonas solanacearum not R. solanacearum
Fuck that shit I didn't know they re-fucking classified this shit when it's still debated
>I do try and orient them where they can get as much sun as possible. The abruptness of them wilting makes me question whether it's some sort of disease, since for a couple months they were going strong.
Disease only happens when the entire disease triangle is met. What is your Köppen climate classification, potato cultivar, photoperiod and chilling hours? Those are important factors (Temperature inversion is not a big factor in potatos aside from killing them unlike kiwi).
Easiest way to check is to cut off a portion of the stem and hold it in water. If at the bottom of the cut you see this cloudy /distorted trail released it's usually a bacterial infection. Strelok also needs to sterlize the tools as well (Alcohol works well imho)
If potato famine
strelok fucking used GMO self suiciding plants instead of fucking heirloom seeds I will be very sad.
>t. plant pathology class in college and being an agriculture degree holder
I usually deal with fruits and nuts huur durr gay joke
so feel free to toss me questions. Specifically I do work on Persimmons and kiwis.
you fooking what mate???????