Tiny Holes in Orchid Petals: Thrips Damage & Control

Thrips: The Invisible Flower Destroyers

Tiny holes in orchid petals, especially on one plant, suggest thrips—microscopic insects that rasp petal tissue. They prefer sweeter-sap flowers and hide in buds, making them hard to spot.

Control Strategy

1. Buy thrips-labeled insecticide at garden center (pyrethrin or systemic).
2. Apply per label; repeat per schedule (eggs hatch later).
3. Drench pot media to kill pupae.
4. Discard old media at repotting.
5. Use sticky traps for adults.

Monitoring

• Inspect with 10x hand lens & bright light.
• Google "thrips" for identification.
• Other culprits possible—observe before spraying flowers (some sprays damage petals).