EN-STRIP / Encarsia formosa
EN-STRIP / Encarsia formosa

EN-STRIP / Encarsia formosa

Parasitic wasp
Use En - Strip for biological control of greenhouse whiteflies (Trialeurodes vaporariorum) and tobacco whiteflies (Bemisia tabaci) in the third and fourth 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 EN - STRIP
Rate (ind./m2) m2/ unit Frequency Interval (days) Remarks
Preventive 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 En-Strip work
Female adult parasitic wasps parasitize the third and fourth larval stage of the whitefly. Additionally, host feeding also occurs.

Application En - Strip
  • Open package carefully 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 En - Strip preventively and at the first sign of pest presence.
Best working conditions En - Strip
Optimal working conditions for En - Strip require a minimum 24 hour average greenhouse temperature of at least 17°C/63°F. At lower temperatures it is recommended to use the cards with half the amount of pupae.
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 En - Strip, 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 beneficials. Check here