How to Identify and Get Rid of Thrips on Plants?

What Are Thrips?

Thrips are extremely tiny insects, only 1-2 mm long with slender, elongated bodies. They're so small that it's hard to spot them without looking closely.

Physical Characteristics

  • Body length 1-2 mm, like a tiny sliver
  • Various colors — black, brown, yellow, or pale yellow
  • Two pairs of narrow wings with long fringe hairs along the edges
  • Nymphs are wingless and even smaller than adults

Where Do Thrips Hide?

Thrips favor concealed parts of plants:

  • Deep inside flower centers (at the base of petals)
  • In the crevices of young leaves and buds
  • On the undersides of leaves
  • Between flower bracts and sepals

How Thrips Feed

Thrips have a unique "rasping-sucking" mouthpart:

  1. First, they use their mouthparts to rasp and break the plant epidermis
  2. Then they suck up the fluids that ooze out
  3. Rasped leaves develop silvery-white speckles
  4. Rasped petals become wrinkled, distorted, and discolored

Which Plants Attract Thrips?

  • Roses, roses, and other flowering plants
  • Peppers, eggplants, tomatoes, and other vegetables
  • Orchids, chrysanthemums, and other ornamentals
  • Almost all flowering plants can be affected