Larvae of various species of beetle such as the black vine weevil (Otiorhynchus sulcatus)
How does Larvanem work?
After application, the nematodes actively search for their prey and penetrate them. The nematodes feed on the contents of the prey, 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 larvae die within a few days.
How to use Larvanem
Half an hour before preparing the product, remove the pack from the refrigerator and let it come up to room temperature (20°C)
Break the contents of the sachet (250 million Heterorhabditis bacteriophora) into smaller pieces
Use the entire pack and place the smaller pieces in a bucket containing five litres of water (at 15 to 20°C)
Leave the bucket with the solution to stand for five minutes
Then stir the solution until all the lumps have disappeared before transferring it to the spray tank
Use the spray solution straight away
With a watering- can, sprinkler system, backpack spray unit or vehicle-mounted spray unit
To avoid blockage, all filters should be removed
Use a maximum pressure of 12 bar on spraying boom or pistol
The spray nozzle opening should be at least 0.5 mm (500 microns)
Continuous mixing should take place to prevent nematodes sinking to the bottom of the spray tank
In case of pot application: 5000 nematodes per liter pot volume
Best working conditions Larvanem
The moisture content of the soil must be high
Soil temperature between 14 and 33°C
Nematodes are susceptible to ultraviolet light (UV): do not use them in direct sunlight
Leaf applications should only be carried out in the evening to minimise the influence of UV light and to maximize moisture availability for the nematodes
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 Larvanem, please follow the instructions 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.
Shelf life: see package for expiry date
Storage temperature: 2-6 °C
Store in a dark place
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 Koppert specialist
or a recognized distributor of Koppert products.