M52 GR

The biological insecticide against Black Vine Weevil

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Lalguard M52 GR is a Metarhizium based product which can be used within growing media for the control of Black Vine Weevil. With the removal of chemical pesticides from the market it is important for growers to implement an IPM strategy towards this pest (amongst others) and Lalguard M52 GR plays an important role within the IPM toolbox.

  • High efficacious, stand-alone bio-insecticide for Black vine weevil control

  • Consistent efficacy and comparable with many chemicals

  • Can reduce chemical inputs when combined in a program

  • Easy to apply and remains viable in the soil for months

  • Compatiable with conventional and organic IPM programs

  • Zero REI for ornamental crops

CropsApplicationMethodTiming in cropsRulePHI (days)Pests targeted
Soft fruitGreenhousePotting soil incorporationAt growth stages Jan-Dec (optimum 15-30°c)*0.5kg/m³ (**150-300kg/ha)3 (IT)Black vine weevil
OpenSoil incorporation12.5-25kg/ha2 (FR) 3 (IT)
Tree nursery crops and perennialsGreenhousePotting soil incorporationAt growth stages Jan-Dec (optimum 15-30°c)*0.5kg/m³ (**150-300kg/ha)2 (FR) 3 (IT)Black vine weevil
OpenSoil incorporation12.5-25kg/ha2 (FR)
Floriculture and ornamental cropsGreenhousePotting soil incorporationAt growth stages Jan-Dec (optimum 15-30°c)*0.5kg/m³ (**150-300kg/ha)3 (IT)Black vine weevil
(Potting) soil incorporation(Potting) soil incorporation12.5-25kg/haNone
*Max rate per application: 0.5kg/m³=4.5x1011 CFU/m³**Max per crop/seasonMax number of applications: 2; interval 7 days
Crops
Application
Method
Timing in crops
Rule
PHI (days)
Pests targeted

1
Thoroughly incorporate into growing media prior to planting (even mix with a 1/3 of media before full incorporation) - This can be pre-mixed in to growing media and delivered, please speak with your ICL Technical Area Sales Manager for tailored recommendations for crops
2
Culture substrates should not be dry or excessively wet (particularly bark-based, to avoid over-heating)
3
Use treated media within 30 days
4
Optimum temp 15-30°C (spores survive freezing)
5
Limited data support for effectiveness in heavier soil types
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