Nemeses

The farmer's nemeses were the locusts that ate his crops year after year.

The city's nemeses, potholes, made for a bumpy and frustrating commute.

Her addiction to alcohol was one of her nemeses.

The chef's nemeses, a lack of fresh ingredients and poor kitchen equipment, limited his culinary creations.

The homeowner's nemeses, termites, caused extensive damage to the structure of their house.