How to Kill Thrip Larvae in Water

Written by dawn gibbs
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Thrips are winged insects, some of which damage plants by piercing the foliage. They can cause markings on the leaves of the plant, and may eventually stunt plant growth. Thrip larvae are 1/20 inch long or less and do not have wings. Thrips live on a variety of plants, including avocado, citrus trees, fig trees and some vegetables. Killing thrip larvae with water involves removing them from the plant and drowning them.

Skill level:
Moderately Easy

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Things you need

  • White paper or sheet
  • Bucket
  • Spray bottle
  • Water

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  1. 1

    Place a piece of white paper or a white sheet under the plant. Fill a bucket with water. Fill a spray bottle with water.

  2. 2

    Shake the plants vigorously to knock off any thrip larvae and adults. Examine the plant for any further larvae. Spray them with water from the spray bottle to knock them off onto the paper.

  3. 3

    Remove the paper or sheet from under the plant. Dunk it in the bucket of water to drown the thrip larvae.

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