leaf issue on seed potatoes

[rxkeith]

i have TPS potatoes growing in solo cups in an east facing upstairs window.
the problem is the leaf tips are slowly turning brown which spreads to the entire leaf with what i would call a shiny
or silvery cast. the leaf then dries up, and falls off. i am wondering if i should toss them, or repot them to bigger pots
to see if they grow out of it before planting into the garden with the rest of the tomatoes, and potatoes. i don't
want to infect the main crop if i don't know what i am dealing with.
i have tried looking up foliage diseases. our satellite internet is painfully slow especially when photos are involved.
what i have found so far, doesn't match up with what i am seeing.
any thoughts?



keith

[brownrexx]

I have never had a foliage issue on my potatoes but they are susceptible to Late Blight. Have you looked at photos of LB on potatoes?