tuholaisista

Tuholaisista is the elative plural form of the Finnish noun tuholainen, meaning a pest or harmful organism. In Finnish grammar, tuholainen belongs to the -inen noun class; its nominative plural is tuholaiset, genitive plural tuholaisten, and elative plural tuholaisista. The elative plural expresses origin or topic and is commonly translated as “from pests” or “about pests.”

The form is typically used when referring to pests as a topic of discussion or as a source of information. For example, phrases like “Tietoja tuholaisista” mean “information about pests,” and “Keskustellaan tuholaisista” means “They are discussing pests.” The elative plural appears frequently in agricultural, ecological, and biological texts, reports, and educational materials when addressing pests and their impacts or control methods.

Usage notes and related forms can help with understanding the word family: tuholainen (singular), tuholaiset (nominative plural), tuholaisten (genitive plural), tuholaisista (elative plural). Other -inen nouns follow similar patterns for the same cases, such as vihollinen (enemy) with viholliset, vihollisten, and vihollisista.

See also: tuholaiset, tuholaisten, vihollinen, viholliset, vihollisista.