Amarillo’s red blotch

I was weeding my garden and I saw this on my moms amyrillos. my mom has had these amyrillos for twenty years, and I’m not well kept up in botany, and I googled what it could be, the search results came up as red blotch, which was treated theu taking out. th infected leafs and soaking the bulbs. any tips would help. they haven’t bloomed in years and I’d love to see their bloom. they’re in soil, in the groun, and they’re very much connected together. any tips at all?