How to Say "infestation" in Spanish
The Spanish word for “infestation” is “plaga” — B1 level. This is a very common word in everyday Spanish.
Examples
La plaga de langostas destruyó toda la cosecha.
The plague of locusts destroyed the entire harvest.
Necesitamos un exterminador para deshacernos de esta plaga de cucarachas.
We need an exterminator to get rid of this cockroach infestation.
La zona rural sufrió una plaga de mosquitos este verano.
The rural area suffered a mosquito plague this summer.
Always Feminine
Since 'plaga' ends in '-a', it is a feminine noun, so you must use 'la' or 'una' before it: 'la plaga' (the plague).
Using 'Peste' Incorrectly
Mistake: “Using 'peste' when talking about crop damage or insects.”
Correction: While 'peste' means 'plague' (especially historical diseases), 'plaga' is the better word for modern problems like insect infestations or agricultural pests.
Related Translations
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