TERRANEM

Unit of packaging
Heterorhabditis bacteriophora (entomopathogenic  nematode)
Pack- size: 2 bags in a box
Contains: 2 x 250 million larvae (third stage) in inert carrying carrier material
 
Target
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.

 

Preparation of spray solution

• put the contents of the pack into a bucket containing 10 litres of water (15-20°C)
• 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!

 

Release rates

Rates
TERRANEM	dosage	m²/unit	interval (days)	frequency	remark
preventive	-	-	-	-	-
curative (small-scale infestations)	500000/m²	1000	-	1x	early application
curative (large-scale infestations)	500000/m²	1000	21-28	2x	early and late application

 

Application and dose

• 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 (at least 2-5 litres per m²) 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°C 

Storage and handling

• shelf life: see package for expiry date
• storage temperature: 2-6°C
• in a dark place

Appearance
Larvae (third stage): size 0.6 mm long
Other stages: develop inside host
 
Mode of action
After application, the nematodes actively search for grubs and penetrate them. The nematodes feed on the contents of the grubs, excreting specific bacteria from their digestive tracts as they do so. These bacteria convert host tissue into products that the nematodes can easily ingest. The grubs die within a few days.
 
Visible effects
Affected grubs turn from white-beige to red-brown and become slimy, as a result of which they are often difficult to find. The first grubs may die within 2-4 days of application. Check affected areas just before and within two weeks following application. During that period, the nematodes will have reproduced and killed a greater percentage of grubs. It is possible to have Koppert carry out an analysis on grub samples. Consult the determination form for further information.
 
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.
Only use products that are permitted in your country and the crop concerned. Check local registration requirements.
Koppert Biological Systems can not be held liable for unauthorised use.