Biobest Nemasys L

Nemasys® L is a proprietary formulation of the naturally occurring insect-parasitic nematode Steinernema kraussei that seeks out the larval and pupal stages of black vine weevil (Otiorhynchus sulcatus). These beneficial nematodes enter the body of immature insects and release symbiotic bacteria which kill the pests.

Nemasys L has the added advantage of being cold-temperature tolerant. Nemasys L will control black vine weevil larvae in soil temperatures down to 41 °F / 5 °C. This means it will infect and kill black vine weevil larvae whenever they are active in the soil.