How to recognize two-spotted spider mite

The color of twospotted spider mites can differ according to the host plant, varying from orange, light yellow or light green to red, brown or almost black. Adult spider mites have two dark spots on their flanks. During heavy infestation numerous webs made from silky threads can be found on the plant. Females usually deposit eggs on the underside of the leaves in these webs. The first larval stage has three pairs of legs. Starting from the second larval stage, mites have four pairs of legs. These are called the protonymph stage (second stage) and deutonymph stage (third stage). The two dark spots on the body darken when the mites age. Females enter diapause during unsuitable conditions (short day length, low temperatures and food) shortage. Mites in diapause are colored red.  

Two-spotted spider mite Tetranychus urticae
Two-spotted spider mite
Two-spotted spider mite Tetranychus urticae close-up
Two-spotted spider mite close-up

Two-spotted spider mite damage and distribution

Two-spotted spider mites are usually found on the underside of leaves and on growth tips of plants. Feeding damage expresses itself as small light spots. Feeding damage inhibits plant growth en causes reduced yield. During heavy infestation the leaf will die. In addition, webs and feeding damage cause cosmetic damage in ornamentals.   

Two-spotted spider mite Tetranychus urticae - damage
Two-spotted spider mites forming web

Life cycle two-spotted spider mite

  • about 80 eggs per female
  • 6-8 generations per season
  • at 20°C : egg to adult in 17 days
  • at 30°C: egg to adult in 7 days
  • no development at 12 °C

Host plants two-spotted spider mite

  • very polyphagous
  • tomato, eggplant, cucumber, bean
  • potted plants
  • rose
Our products against

Two-spotted spider mite

PHYTOSEIULUS PERSIMILIS

Effective against
– Two-spotted spider mite

MACROLOPHUS PYGMAEUS

Effective against
– Whitefly and thrips
– Spider mite
– Tomato looper

SPIDEX

Effective against
– Two-spotted spider mite

SPIDEND gall midges against spider mite

SPIDEND

Effective against
– Two-spotted spider mite

LIMONICA - Amblydromalus limonicus, roofmijt

SPICAL

Effective against
– Two-spotted spider mite
– Tarsonemid mite
– Citrus mite

Common mite species

Two-spotted spider mite

False spider mite
Tarsonemid mite
Citrus
mite