Metarhizium for vine weevil
The LALGUARD M52 GR label lists vine weevil larvae on berries, ornamentals and nursery crops, applied by mixing the granules into the growing media or soil. It reports that a spring incorporation, before egg-laying, lasted through two black vine weevil egg-laying seasons, and says the spores persist longer in potting media than on foliage. Its label sites are greenhouses, nurseries, crops and institutional lawns, not home gardens.
Before you order
Spores of an insect-killing soil fungus, sold as granules to mix into potting media and soil, or as a liquid to drench or spray. Labelled for thrips pupae and vine weevil larvae in soil, and for whiteflies, mites and aphids on leaves. It is not labelled for wireworms in the US. How it works, how to tell it has established and the supplier list are on the full Metarhizium brunneum strain F52 profile.
Other controls for black vine weevil
- Heterorhabditis bacteriophoraNematode · 250k–500k /m² of soil or compost surface (Koppert Larvanem rate)
- Ground beetlesWild predator · wild, attract it
- Rove beetlesWild predator · wild, attract it