Eretmocerus eremicus is a tiny parasitic wasp (less than 1 mm. in length). The targets of eretmocerus eremicus are mainly Glasshouse whitefly and Tobacco whitefly in the second and third larval stage. Female adults are pale lemon / yellow colored with green eyes and clubbed antennae. Male adults have longer, elbowed antennae and are brownish-yellow in colour.
Life cycle and relative effectiveness
Adults allocate whitefly hosts by olfaction. The female adult lays her eggs (about 3 to 5 per day) between the whitefly nymphs and the leaf surface. An egg hatches (depending on climate conditions) within four days. The larvae develops as an external-internal parasite. Once the whitefly pupae stage is reached, the wasp larvae releases digestive enzymes and begins ingesting the semi-liquid body parts of the pupae. After approximately 12 days the (adult) eretmocerus chews its way out of the whitefly cadaver, leaving a round hole.
Application and dose
Eretmocerus eremicus is effective at a temperature between 25°C and 30°C and is less susceptible to pesticides than encarsia formosa. Illuminated cultivation: deployment schedule (2x)
Storage and handling
Eretmocerus eremicus supplied in bottles (15.000) or strips (3.000 or 15.000) depending on the amount of parasitic wasps. Keep the bottles horizontally, in darkness, at a temperature between 8°C – 10°C. Maximum storage time of two days.