Monterey Bacillus Thuringiensis Biological Insecticide
Best organic pest control for home vegetable and fruit gardeners.
Effectively protect your edibles and ornamentals with Monterey BT Biological Insecticide. This OMRI Listed product targets and controls damaging worms and caterpillars found on fruits, vegetables, shrubs, and trees. It functions by stopping pests from feeding while remaining safe for beneficial insects, supporting organic gardening practices. A key advantage is its safety for application on edible plants right up to the day of harvest. This concentrate formulation is also safe for use around people and pets, providing reliable pest management for your garden.
$18.99
Owner Satisfaction
4.7
/ 5
Category Rank
23
/ 1682
#23 in Pesticides
Price vs Category Average
-57%
Below average
UPC
022179104747
Who it's for
- Eco-conscious gardeners protecting pollinators and beneficial insects
- Home growers harvesting vegetables and fruits for immediate consumption
- Gardeners needing to stop active plant damage immediately
Who should skip it
- Users looking to eliminate adult insects or pest eggs
- Gardeners battling aphids, mites, or other non-caterpillar pests
- Busy gardeners wanting a low-maintenance, set-and-forget pest solution
Performance breakdown
Organic Compliance
OMRI listing ensures full compatibility with strict organic gardening standards.
Harvest Flexibility
Zero-day pre-harvest interval allows for immediate consumption after application.
Target Selectivity
Eliminates destructive larvae while sparing essential pollinators and beneficial insects.
Safety Profile
Formulated for peace of mind around children and household pets.
Concentrate Efficiency
Highly concentrated liquid provides excellent coverage for large garden spaces.
Pest Specificity
Highly effective against caterpillars but limited to specific larval stages.
Key Specs
UPC
022179104747
Container Size
8oz
Formulation Type
Concentrate
Registration Status
OMRI Listed
Pesticide Type
Biological insecticide
Physical State
Liquid
Pre Harvest Interval (PHI)
Day of harvest
Active Ingredient
Spinosad
Features
- Controls worms and caterpillars on edibles.
- OMRI Listed for organic gardening.
- Stops feeding without harming beneficial insects.
- Usable on edible plants day of harvest.
- Safe for people and pets.
- Controls pests on fruits, vegetables, and trees.
What customers say
Customers consistently praise this product for its exceptional reliability in managing pests such as cabbage worms and tomato hornworms. Users confirm its efficacy as a biological solution, noting rapid and targeted results. A key benefit is the ease of application; the concentrate mixes quickly, fitting smoothly into regular garden care. Consumers highly value that this solution offers powerful protection while remaining safe for beneficial insects and their edible crops. This combination of performance and safety makes it a trusted choice for garden maintenance.
Know before you buy
Yes. This product has a pre-harvest interval of zero days, meaning you can safely apply it to your edible plants up to the day of harvest.
No. Monterey BT is specifically formulated to target worms and caterpillars while remaining safe for beneficial insects like bees and ladybugs.
Yes, it is safe for use around people and pets once the application has dried. As with any garden product, it is best to keep children and pets out of the area during the actual spraying process.
This biological insecticide is designed to control various species of worms and caterpillars that damage fruits, vegetables, shrubs, and trees.
Yes, Monterey BT is OMRI Listed, which means it meets the standards required for use in certified organic gardening practices.
Since this is a concentrate, you must dilute it with water according to the instructions on the product label before applying it with a garden sprayer. Always follow the mixing ratios provided to ensure effective pest control.
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$19