Safer Caterpillar Killer Concentrate
Best organic solution for gardeners protecting edible crops from hungry caterpillars.
Safeguard your garden with Safer Brand Caterpillar Killer II Concentrate, an OMRI Listed organic solution. This powerful insecticide effectively targets and eliminates common garden pests like caterpillars, gypsy moth larvae, worms, cabbage loopers, and tomato hornworms. It's formulated to be safe for beneficial insects and the environment, allowing you to use it right up to harvest day. Easy to mix and apply, this concentrate offers a reliable and organic approach to pest management for a thriving garden.
$12.50
Owner Satisfaction
4.6
/ 5
Category Rank
355
/ 1667
#355 in Pesticides
Price vs Category Average
-72%
Below average
Active Ingredient
98.35
/ Bacillus thuringiensis var Kurstaki %
Who it's for
- Gardeners seeking natural, targeted caterpillar management
- Eco-conscious gardeners protecting beneficial pollinators and ladybugs
- Organic growers needing food-safe pest control until harvest
Who should skip it
- Gardeners needing an immediate fix for active infestations
- Busy homeowners wanting a low-maintenance, set-and-forget solution
- Users preferring the convenience of ready-to-use spray bottles
Performance breakdown
Organic Efficacy
Bacillus thuringiensis provides a potent, targeted strike against common leaf-eating pests.
Application Versatility
Zero-day harvest interval allows for worry-free protection until the very end.
Ecological Safety
Formulated to spare beneficial pollinators while neutralizing destructive caterpillar populations.
Mixing Convenience
Concentrated formula makes preparing large batches for garden-wide coverage simple.
Target Specificity
Highly effective at eliminating hornworms and loopers without harming non-target species.
Organic Compliance
OMRI listing ensures strict adherence to the highest standards for organic gardening.
Key Specs
Active Ingredient
Bacillus thuringiensis var Kurstaki 98.35%
OMRI Listed for Organic Use
Container Size
16 fl oz bottle
Net Volume
16 fl oz
Application Method
Concentrate
Product Form
Concentrate
Application Location
Outdoor, Lawn and Garden
Safe for Beneficial Insects
Yes
Features
- Kills caterpillars and other common garden worms
- OMRI Listed for organic gardening
- Safe for beneficial insects
- Can be used up to harvest day
- Effective against tomato hornworms
- Contains Bacillus thuringiensis var Kurstaki
- Concentrated formula for easy mixing
- Environmentally friendly pest control
What customers say
Gardeners highly value this concentrate for its reliable pest protection across vegetables and ornamentals. A key benefit is its safety; users appreciate that it effectively targets pests while remaining safe for beneficial insects and pets, supporting organic gardening. Application is simple, involving easy mixing. For continuous results, reapplying after heavy rain is necessary. This product offers excellent value and provides significant peace of mind for garden pest management.
Know before you buy
The active ingredient, Bacillus thuringiensis var Kurstaki, is a naturally occurring bacteria that specifically targets the digestive systems of leaf-eating caterpillars. Because it requires ingestion to be effective, it does not harm beneficial insects like bees or ladybugs that do not feed on the treated foliage.
Yes. Because this formula is OMRI Listed for organic gardening, it has a pre-harvest interval of zero days, meaning you can safely apply it up to the day of harvest.
Yes, this is a concentrated formula that must be mixed with water according to the instructions on the label. Always follow the dilution ratios provided to ensure the product is effective and safe for your specific plants.
Yes, it is highly effective against tomato hornworms. For best results, apply the solution to the leaves where the larvae are actively feeding.
While the product is environmentally friendly and organic, it is standard practice to keep pets and children out of the treated area until the spray has completely dried. Always store the concentrate in a secure location out of reach.
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