Orchid thrips

Chaetanaphothrips orchidii
Appearance:

The adult thrips is yellow to light brown in color, and is 0.8 to 1.3 mm long and 0.15 mm wide. Female have relatively large, red to purple eyes. The color of the wings is light brown with dark brown bands, one at the base of the wings and one halfway the wings. The legs are light in color, light antennae with dark bands. Young stages are light yellow to light orange in color and wingless.

Damage and distribution in the crop:

Orchid thrips lives mainly on leaves and buds. It is not a very mobile species; prefers to sit on a hidden spot under a petiole or between leaves. Eggs are laid in the leaf. After hatching young thrips remain in the vicinity, they barely move away to other places. therefore they are often found in clusters. Adult thrips and younger stages feed on young leaves and buds. Their feeding damage resembles a kind of rust, orange-brown discoloration. Affected buds grow distorted. Orchid thrips mainly causes cosmetic damage.; virus transmission by the species is not known.

lifecycle orchid thrips:

  • female lays about 100 eggs
  • development time 5-6 weeks
  • of which a fairly large part as pupa in the soil
  • female lives 5-6 weeks
  • pupation in the soil

host plants orchid thrips:

  • orchids
  • Anthurium
  • subtropical fruit crops, esp. banana, citrus, avocado

Products against orchid thrips:

Amblydromalus limonicus:

LIMONICA

Franklinothrips vespiformis:

PREDATRIP

Amblyseius swirskii:

SWIRSKI MITE