The larvae feed mainly on roots but they will also eat corms and soft fleshy stems. It takes several months to develop from egg to adult resulting in one cycle per year on outdoor crops but multiple generations may occur on heated crops.
Vine Weevil Control Products
Autumn and spring are the main seasons for nematode application, although additional treatments may be needed for heated or protected crops. It is important that the soil or compost is kept moist (not water logged). Exhibitlline Sk /Nemasys L will work as low as 5°C allowing applications to be made whenever the pest is active.
Apply as a drench using conventional sprayer, dilutor, watering can or through most irrigation lines. In all cases remove any fine filters and ensure water temperature is between 5 and 15°C.
Exhibitline Hb will control black vine weevil larvae (Otiorhynchus sulcatus) and other soil pests and is used for garden chafer control in lawns. Exhibitline Hb is more temperature dependant than Exhibitline Sk and ensure soil or growing media temperatures are between 12 and 30°C.