Healthy Plants
A beautiful garden starts with healthy plants. We carefully grow and select plants that are ready for their next chapter in your garden.
Monterey BT Biological Insecticide
16 oz Concentrate
$18.95
Skip to product information
Monterey BT Biological Insecticide
Why buy: Uses natural bacteria to target caterpillars specifically, preventing plant damage without harming people, pets, or beneficial insects. A safe and effective way to manage caterpillar infestations.
Quick Summary: Keep your plants and roses safe from hungry caterpillars with Monterey BT Biological Insecticide! Caterpillars can be a major garden pest, chewing through leaves and damaging new growth, which can weaken your plants over time.
This product uses natural bacteria that specifically target caterpillars, stopping them from feeding and eliminating them quickly—without harming people, pets, or beneficial insects. Because it only activates inside a caterpillar’s digestive system, it’s a safe and effective way to reduce damage and keep your roses healthier all season long. Simply apply as directed for best results!
Download Monterey BT Biological Insecticide Concentrate instructions here.
Download Monterey BT Biological Insecticide Ready-To-Use instructions here.
$9.95 Flat-Rate Shipping
On Garden Supplies & Non-Plant orders under $50 in the contiguous U.S.
More Like This
ROOTED IN OREGON SINCE 1973
Here to Help You Grow Something Beautiful
For more than 50 years, we’ve helped gardeners bring their vision to life. From healthy plants and careful delivery to expert guidance along the way, our job is to give you the confidence to grow a garden you love.
Family owned. Grown with care. Here when you need us.
Delivered With Care
Shipping living plants takes experience. We carefully prepare and package your plants for the journey from our nursery to your doorstep.
Expert Guidance
You don’t have to figure it out alone. Our knowledgeable team is here to help you choose, plant, grow, and care for your garden.