St. Gabriel Organics Milky Spore Powder
Best long-term solution for eco-conscious homeowners managing lawn grubs.
This biological treatment is the ultimate 'set it and forget it' solution for lawn health. By introducing a self-sustaining bacteria to your soil, you trade immediate chemical knockdown for a decade of natural, hands-off protection against grubs and beetles.
$40.99
at
Starkie Bros. Garden Center
Who it's for
- Busy property owners wanting a low-maintenance, one-time application
- Homeowners seeking a long-term, set-it-and-forget-it lawn solution
- Eco-conscious gardeners prioritizing safety for pets and beneficial insects
Who should skip it
- Budget-focused landscapers managing large properties
- Gardeners needing immediate relief from active grub infestations
- Residents in cooler climates with short, unpredictable growing seasons
Performance breakdown
Application Longevity
A single treatment provides nearly a decade of reliable grub suppression.
Safety Profile
Biological formula keeps pets and beneficial pollinators completely out of harm's way.
Target Specificity
Highly effective at isolating Japanese Beetle grubs without disrupting lawn ecosystems.
Ease of Application
Powder distribution requires patience to ensure even coverage across the lawn.
Organic Compliance
OMRI listing guarantees adherence to strict organic gardening standards.
Coverage Efficiency
Ten-ounce container handles smaller plots but requires bulk for larger landscapes.
Key Specs
Formulation Type
Milky Spore Powder
Active Ingredient
Bacillus Thuringiensis
Pest Type
Japanese Beetle Grubs
Application Method
Spread
Coverage Area
Up to 2,500 sq ft (10 oz)
Application Longevity
Up to 10-20 years
Weight
0.625 lbs
Pesticide Type
Biological/Natural
OMRI Listed
Pet Safe
True
Know before you buy
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