Fertilome Caterpillar Killer Spray with Bt Ready to Use
Best organic solution for gardeners protecting edible fruits and vegetables.
Effectively manage destructive caterpillars and worms in your garden with Fertilome Caterpillar Killer Spray. This ready-to-use, organic solution utilizes Bacillus thuringiensis (BT) to target pests while remaining safe for beneficial wildlife, including pollinators. It's approved for application on fruits and vegetables right up to harvest day, ensuring your edible crops are protected without delay. The convenient 32 oz spray bottle makes application simple, allowing you to maintain healthy plants and a vibrant garden with confidence. Trust Fertilome for eco-friendly pest control.
$17.99
Owner Satisfaction
4.5
/ 5
Category Rank
627
/ 1717
#627 in Pesticides
Price vs Category Average
-60%
Below average
Formulation
Ready to Use (RTU)
/ Ready to Use (RTU)
Who it's for
- Busy homeowners wanting a quick, mess-free pest solution
- Gardeners prioritizing the safety of beneficial pollinators and insects
- Organic growers treating edible crops near harvest time
Who should skip it
- Users dealing with diverse infestations like aphids or beetles
- Gardeners needing immediate results to stop active plant damage
- People unable to commit to frequent, recurring application schedules
Performance breakdown
Application Convenience
Ready-to-use formula eliminates the hassle of measuring and mixing chemicals.
Edible Safety
Zero-day harvest interval provides total peace of mind for vegetable gardeners.
Ecological Impact
Targeted biological action protects pollinators and beneficial garden wildlife effectively.
Pest Specificity
Highly effective against caterpillars while ignoring non-target beneficial insect species.
Organic Compatibility
Certified organic ingredients align perfectly with sustainable and natural gardening practices.
Coverage Efficiency
The 32-ounce bottle is ideal for spot treatments but limited for large-scale gardens.
Key Specs
Formulation
Ready to Use (RTU)
Active Ingredient
Bacillus thuringiensis (BT)
Container Size
32 oz
Model Number
16016
Application Method
Spray
Target Pests
Caterpillars, Worms
Pre-Harvest Interval (PHI)
Up to the day of harvest
Features
- Organic pest control with BT
- Safe for beneficial insects and wildlife
- Apply to edibles up to harvest
- Ready-to-use, no mixing required
- Targets caterpillars and worms
- Convenient 32 oz spray bottle
- Ideal for organic gardening
- Protects fruits and vegetables
What customers say
Gardeners appreciate this product's effectiveness against common pests like tomato hornworms and cabbage loopers. Its ready to use nature simplifies application, removing the need for mixing. A key benefit is its targeted action, controlling specific insects while safeguarding edible plants and beneficial garden insects. This makes it a reliable and straightforward choice for protecting your garden, offering peace of mind for growers seeking efficient pest management solutions.
Know before you buy
BT is a naturally occurring soil bacterium that targets specific caterpillar and worm species. When the pests ingest the treated foliage, the bacteria produce proteins that disrupt their digestive systems, causing them to stop feeding and eventually die.
Yes, this product is specifically designed for use on fruits and vegetables. Because it is organic and has a pre-harvest interval of zero days, you can safely apply it to your edible crops right up until the day you plan to harvest them.
No, this formula is selective. It is designed to target leaf-eating caterpillars and worms while remaining safe for beneficial insects like bees, ladybugs, and other pollinators.
No, this is a ready-to-use (RTU) product. It comes pre-mixed in a 32 oz spray bottle, so you can apply it directly to your plants without any additional preparation or mixing.
For ongoing protection, reapply the spray every 7 to 14 days or after heavy rainfall. Since BT breaks down when exposed to sunlight, consistent application ensures your plants remain protected as new foliage grows.
Still have a question?
Ask Hayley anything about this product before you decide.