Fertilome Caterpillar Killer with Bt Biological Insecticide
Best organic solution for gardeners protecting edible plants from caterpillar damage.
Effectively control garden pests with Fertilome Caterpillar Killer. This potent formula utilizes Bacillus Thuringiensis to target and eliminate worms and caterpillars. Once consumed, pests cease feeding, protecting your plants immediately. It's safe for beneficial insects like honeybees and ladybugs, and can be used on edible plants right up to harvest day. OMRI listed for organic gardening, this 16 oz liquid spray offers a reliable solution for a healthy garden.
$19.99
Owner Satisfaction
4.6
/ 5
Category Rank
357
/ 1717
#357 in Pesticides
Price vs Category Average
-55%
Below average
Active Ingredient
98.35
/ Bacillus Thuringiensis (%)
Who it's for
- Gardeners protecting beneficial pollinators like bees and ladybugs
- Organic growers avoiding synthetic chemical pesticides
- Homeowners needing effective control of destructive chewing larvae
Who should skip it
- Busy gardeners unable to maintain frequent application schedules
- Conservationists protecting Monarch butterfly populations
- Gardeners managing aphids, mites, or adult insect infestations
Performance breakdown
Target Specificity
Biological formula isolates caterpillars while sparing essential pollinators and beneficial insects.
Application Convenience
Ready-to-use liquid format eliminates the need for messy mixing or dilution.
Edible Safety
Organic certification allows for worry-free application right up to harvest day.
Knockdown Speed
Pests cease feeding almost immediately upon ingestion to protect plant foliage.
Organic Compliance
OMRI listing ensures full compatibility with strict organic gardening standards.
Larval Control
Highly effective at disrupting the life cycle of destructive caterpillar species.
Key Specs
Active Ingredient
Bacillus Thuringiensis (98.35%)
Container Size
16 oz
UPC
732221160125
Application Method
Ready to Use
Target Life Stage
Larvae
Net Volume
16 fl oz
Use on Edible Plants
Day of harvest
Safe for Beneficial Insects
Yes
Features
- Kills worms and caterpillars effectively
- Pests stop feeding immediately
- Safe for beneficial insects
- Use on edible plants up to harvest
- OMRI listed for organic gardening
- Ready-to-use liquid spray
- Targets larval stage pests
What customers say
Customers consistently praise the Fertilome Caterpillar Killer for its reliability and ease of use in garden pest control. It effectively manages destructive pests such as tomato hornworms and cabbage loopers quickly. Gardeners appreciate that the product mixes effortlessly, delivering dependable results essential for plant health. This biological insecticide offers excellent value, providing efficient protection while maintaining confidence in its safety for beneficial insects and the environment. Its straightforward application and proven performance are key highlights for users.
Know before you buy
This insecticide uses Bacillus thuringiensis (Bt), a naturally occurring bacteria. Once the caterpillar consumes the treated plant material, the bacteria produce proteins that stop the pest from feeding, leading to its death.
Yes, this product is safe for use on edible plants. You can apply it up to the day of harvest, provided you wash your produce thoroughly before eating.
No, this formula is specifically designed to target larval stage pests like caterpillars and worms. It is safe for beneficial insects, including honeybees and ladybugs.
No, this is a ready-to-use liquid spray. You can apply it directly to your plants without any additional mixing or dilution.
Yes, this product is OMRI listed, meaning it meets the standards required for use in certified organic gardening.
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