ERCAL / Eretmocerus eremicus
ERCAL / Eretmocerus eremicus

ERCAL / Eretmocerus eremicus

Parasitic wasp
Use Ercal for biological control of greenhouse whitefly (Trialeurodes vaporariorum) and tobacco whitefly (Bemisia tabaci) in the second and third larval stage.
Each box contains cardboard strips with 5 cards each, wrapped in plastic, with parasitized whitefly pupae.
  • 10 cardboard strips, hatching 3,000 parasitic wasps
  • 50 cardboard strips, hatching 15,000 parasitic wasps
Dosage ERCAL
Rate (ind./m2)
m2/ unit
Interval (days)
 1,5 - 3
1000 - 2000
 7 - 14
  Light curative  
 3 - 6
500 - 1000
 min. 3x
release until control
is achieved
  Heavy curative  
 min. 3x
release until control
is achieved
The information given below is merely indicative. Tailored advice can be provided if information is available on the local factors that need to be taken into account, such as the crop, the climate conditions and the level of infestation. For the correct approach, please consult a specialist of our company.
How does Ercal work
Adult female parasitic wasps parasitize the second and third larval stage of the whitefly. Additionally, host feeding also occurs.

Application Ercal
  • Carefully open package inside the greenhouse
  • Bend and tear off the strips opposite from the mounting hole
  • Suspend the cards in the crop, if possible approximately 75 cm under the plant head
  • Avoid direct sunlight
  • Do not touch the pupae
  • Use Ercal preventively and at the first sign of pest presence.
Best working conditions Ercal
Optimal working conditions for Ercal require a minimum 24 hour average greenhouse temperature of at least 20°C/68°F. However, successful introduction is possible at lower temperatures. Eretmocerus eremicus also stays activeat temperatures above 30°C/86°F.
Biological beneficials have a very short life expectancy and therefore need to be introduced into the crop as soon as possible after receipt. Failure to do so can have a negative impact on their quality. In case you do need to store Ercal, please follow the instructions below.
  • After receipt: 1-2 days
  • Storage temperature: 8-10°C
  • In the dark
Pesticides can have (in)direct effects on biological solutions. Check here