Monterey B.t. Biological Insecticide
Best organic solution for gardeners managing caterpillar infestations.
An effective, organic-compliant solution for controlling caterpillars and worms on edible and ornamental plants. It works by targeting the digestive systems of specific pests, allowing for safe use right up until harvest time.
$28.68
at
Amleo (supplier/retailer)
More B.t. Insecticide options
Who it's for
- Eco-conscious gardeners protecting pollinators while managing pests
- Vegetable growers seeking natural and non-toxic pest solutions
- Budget-minded homeowners with extensive landscaping or large gardens
Who should skip it
- Busy individuals who prefer low-maintenance or long-lasting treatments
- Gardeners dealing with a wide variety of different insect types
- Impatient users expecting immediate knockdown of visible pests
Performance breakdown
Organic Compliance
OMRI-listed status ensures full compatibility with strict organic gardening standards.
Target Specificity
Highly effective against caterpillars while leaving beneficial insects largely unharmed.
Harvest Safety
Zero-day pre-harvest interval offers maximum flexibility for edible crop protection.
Concentration Efficiency
High dilution ratio provides significant coverage from a single quart bottle.
Application Versatility
Works reliably across diverse garden environments from vegetables to shade trees.
Ease of Preparation
Requires careful measuring and mixing, which may deter casual gardeners.
Key Specs
Active ingredient
Bacillus thuringiensis kurstaki
Volume
1 Quart
Mix rate
2 fluid ounces per 3 gallons of water
Coverage area per mix
1,000 square feet
Total coverage area per bottle
16,000 square feet
Shipping weight
2.3 lbs
Organic
Yes (OMRI listed)
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