Koppert Ercal (Eretmocerus eremicus)

Koppert Ercal (Eretmocerus eremicus)

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Product Overview

Koppert Ercal is an exceptional product that's specially designed to help control whiteflies. The Eretmocerus eremicus, a type of parasitic wasp, specifically targets the second and third larval stage of tobacco whitefly (Bemisia tabaci) and glasshouse whitefly (Trialeurodes vaporariorum). Host feeding takes place when adult female wasp parasites the larva of the whitefly. You will see visible results after 2 weeks by the appearance of first parasitized pupae which will turn yellow in color and is independent of species. It's very easy to use; simply suspend the cards at approximately 75 cm under plant head or on plants that you want to protect from whiteflies. It is not recommended to be placed in areas with direct sunlight.

Koppert Ercal is available in two sizes:

  • The small box contains 3,000 Parasitic Wasps pupae on 50 cards, 60 wasps per card.
  • The large box contains 15,000 Parasitic Wasps pupae on 250 cards, 60 wasps per card.


How-to Video

Features and Specs

Active Ingredient Eretmocerus eremicus (parasitic wasp)
Target pests Glasshouse whitefly and tobacco whitefly
For use in Greenhouses
Application Suspend the cards in the crop, if possible approximately 75 cm under plant head. Not in direct sunlight.
Color Female adults: Lemon-yellow
Male adults: Brownish-yellow
Special Features Effective in controlling glasshouse and tobacco whiteflies. Eretmocerus eremicus is less susceptible to pesticides.
Parts Included 50 cards
Shipping Weight 1.00 lbs
Manufacturer Koppert Biological Systems (Mfg. Number: 433)


How-to Video


  • Open package carefully inside the greenhouse
  • Bend strips and tear off. Start tearing opposite hang-up hole
  • Suspend the cards in the crop, if possible approximately 75 cm under plant head
  • Not in direct sunlight
  • Do not touch the pupae

Environmental conditions

Eretmocerus eremicus performs best at a 24 hour average greenhouse temperature greater than 68F (20C). However introductions can start at lower temperatures.

At higher temperatures (above 86F/30C) Eretmocerus eremicus stays active.

Storage and handling

Biological beneficials have a very short life expectancy and therefore need to be introduced into the crop as soon as possible after receipt. Storing them for a period can have a negative impact on their quality and is only possible under the conditions described below. Koppert B.V. is not liable for any loss of quality if the product is stored for longer than recommended and/or under incorrect conditions.

  • Storage after receipt: 1-2 days
  • Storage temperature: 47-50F (8-10C)
  • In the dark


Eretmocerus eremicus is less susceptible to pesticides than Encarsia formosa.

Intensive deleafing (in tomatoes) hinders the population build up of whitefly parasites.


Female adults: lemon-yellow

Male adults: brownish-yellow, thick antennae

Other stages: develop inside host


The introduction rates of this product should be adjusted to the mode of action of the product and the results that can be expected in the crop where the product is applied. Your local Koppert consultant or recognized distributor will be able to advise you further.

Only use products that are permitted in your country/state and crop. Check local registration requirements.

Koppert Biological Systems can not be held liable for unauthorized use.

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