Definition

Noun: A substance, specifically an insecticide, designed to kill insect larvae. It targets the immature, often worm-like stage of an insect's life cycle before it develops into an adult.

Usage

A "larvacide" is used in pest control and public health to prevent the maturation of harmful insects, such as mosquitoes, which can spread diseases. It is typically applied to breeding sites like standing water.

Examples

• Noun:
  • Public health officials applied a larvacide to the stagnant pond to control the mosquito population.
  • This larvacide is effective against the larvae of agricultural pests.

Advanced Usage

• As a mass noun: The term can be used to refer to the substance in a general, uncountable sense.
  • The treatment involves the application of larvacide.

Variants and Related Words

• Larvicidal (adjective): Having the property of killing larvae.
  • The larvicidal properties of the chemical were tested.

Synonyms

• Insecticide (a broader term for any substance that kills insects)
• Larval insecticide (a more descriptive synonym)

Notes on Meaning

The word "larvacide" is very specific. It refers only to agents that kill the larval stage. It is not a general term for pesticides, which may target adult insects (adulticides), eggs (ovicides), or other life stages.

Noun

1. an insecticide that kills the larvae of insects