Seed potatoes are essentially the same as normal potatoes and come in the same varieties. The main difference is seed potatoes are more likely to sprout into new plants than others, so they are desirable for any home gardener interested in raising potatoes. Like many other root vegetables, potatoes are susceptible to diseases, especially fungus. Most diseases can be prevented by dipping the potatoes in a fungicide solution.
Cut the potato into pieces once eyes begin to form. Each piece should have one eye.
Mix a fungicide solution in a bucket or jar that's at least 6 inches tall with an opening large enough to fit the largest potato piece. Follow the directions on your product to ensure the solution is effective. Make sure the fungicide level is high enough to completely submerge the potato pieces.
Grab a potato piece with a pair of tongs. Be sure to get a firm grip so the potato doesn't slip out of the tongs.
Dip the potato in the fungicide and let it soak for 10 minutes. The potato will be covered in the fungicide and should absorb a small amount for added protection.
Repeat the process for all additional potato pieces. You can do multiple pieces at a time, but be sure each piece is completely submerged.