Potatoes and Blight

I'm reading about the history of the potato. Apparently it's a near perfect food and you can survive healthily on just potatoes and milk. (Yay, think I'll plant some!)

BUT the potatoes we grow in North America and Europe are part of monocultures continuously threatened by ever-evolving potato blight and beetles. Farmers have to treat their fields with a variety of strong pesticides every year and the pests still jump over to gardens and wipe them out. (Ooops.)

Looked around and found a source of heirloom potatoes, both modern and Andean adapted for North America. They're sold as seeds rather than tuber pieces, but the variety ought to offer more pest resistance.

https://www.cultivariable.com/product/potato/potato-varieties/tps-broad-tetraploid-mix/

Detailed info on potato seeds and how to grow them:

https://www.cultivariable.com/instructions/potatoes/how-to-grow-true-potato-seeds-tps/#planting

Also found that sweet potatoes and yams are two different kinds of tubers that are unrelated to potatoes, but also highly nutritious. People have called sweet potatoes "yams" but they're different. So more genetic variety.