Koppert Terranem (Heterorhabditis bacteriophora)

Koppert Terranem (Heterorhabditis bacteriophora)
Koppert Terranem (Heterorhabditis bacteriophora)

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Product Overview

Koppert Terranem is specially designed to help control beetles (grubs) effectively. It contains Heterorhabditis bacteriophora, a type of entomopathogenic nematode (EPN), Thread Worms, which specifically targets larvae of different species of beetles (grubs), particularly garden chafers (Phyllopertha horticola). It's also deemed effective against dung beetles from the genus Aphodius and Serica brunnea, Hoplia spp. It works when the nematodes look for grubs to penetrate them. It feeds on its content, but also excretes specific bacteria from their digestive tracts at the same time. The host tissue will be converted into products by these bacteria, making it easier for nematodes to ingest. The grubs will turn from white-beige to red-brown in color, become slimy and may die within a few days after application.

Koppert Terranem is available in two sizes:

  • The small pack comes in a box with a bag that contains 50 million Heterorhabditis bacteriophora larvae (worms).
  • The large pack comes in a box with 2 bags that contain 500 million Heterorhabditis bacteriophora larvae (worms), 250 million per bag.


Features and Specs

Active Ingredient Heterorhabditis bacteriophora - entomopathogenic nematode (EPN)
Target pests Larvae of various species of beetle (grubs), particularly those of the garden chafer (Phyllopertha horticola). Also effective against Serica brunnea, Hoplia spp. and dung beetles from the genus Aphodius.
For use in Greenhouses and field crops
Application * See below
Shelf Life See package for expiration date
Storage temperature: 36-43F (2-6C)
In a dark place
Special Features It effectively controls different species of beetles (grubs)
Shipping Weight 1.00 lbs
Manufacturer Koppert Biological Systems (Mfg. Number: 72700)


Preparation of spray solution

  • Put the contents of the pack into a bucket containing 10 litres of water (15-20 degrees Celsius)
  • Stir well and leave to soak for 20-30 seconds
  • Stir well once again and pour the entire solution into the spray tank
  • Top up until the required amount of solution is in the tank
  • Spray immediately after preparation
  • Use the whole pack in one go, as the distribution of nematodes in the pack is not homogenous!

Application and dose

  • Carry out determination to identify the beetle type and stage of development 
  • Aerate the turf before applying TERRANEM by means of vertidraining, pricking or slitting
  • On the evening before applying TERRANEM, pre-sprinkle the soil surface (5-10 mm)
  • Spray a wetting agent on the evening before applying TERRANEM
  • Keep the soil surface moist after the first water treatment has taken place
  • If possible, use a watering can or sprinkler to administer 5 mm water to the turf 1 to 2 hours before applying TERRANEM
  • Spray over a moist soil surface (for example after a rain shower or after using the sprinkler)
  • Use a watering can, sprinkler system, backpack spray unit or vehicle-mounted spray unit
  • Remove all filters to avoid blockages. Spray nozzle opening 0.5 mm (500 microns)
  • Pressure: max. 12 bar
  • You should preferably spray during cloudy weather conditions or at the beginning or end of the day
  • Avoid applying the nematodes in direct sunlight
  • Mix continuously in order to prevent nematodes sinking to the bottom
  • Water the turf after application in order to wash the nematodes into the soil
  • Keep soil moist for the first two weeks after application

Environmental conditions

  • The moisture content of the soil must be high
  • Optimum soil temperature: between 14 and 33 degrees Celsius

Important!The quantities of this product used should be adjusted to the mode of action of the product and the results that can be expected in the crop in which the product is applied. Your local Koppert consultant or recognised distributor will be able to advise you on the correct use. 
Koppert Biological Systems can not be held liable for unauthorised use.

Storage and handling

  • Shelf life: see package for expiry date
  • Storage temperature: 2-6 degrees Celsius
  • In a dark place


  • Larvae (third stage): size 0.6 mm long
  • Other stages: develop inside host 

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