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Safer Brand Caterpillar Killer with BT, 8 Ounce Concentrate (Discontinued by Manufacturer)

by Safer
4.4 out of 5 stars 170 customer reviews
| 27 answered questions

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  • Kills caterpillars, gypsy moth larvae, worms and cabbage loopers
  • Effective method of eliminating your garden or field of the tomato hornworm without environmental concerns or harm to wildlife and beneficial insects.
  • It is recommended that this product be applied late in the afternoon or on cloudy days since B.t. breaks down in the sunlight.
  • Safer Brand is the leader in alternative lawn and garden products
  • Contains Dipel® (bacillus thuringiensis var Kurstaki -- 1.76%)
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Product Description

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Product Description

The Safer Brand caterpillar killer with B.t. utilizes Dipel (bacillus thuringiensis var. Kurstaki) which, once ingested by the wayward caterpillar or worm, kills them within a few days.

From the Manufacturer

After consuming, caterpillars stop eating and die within a few days. Use in late afternoon or on cloudy days since the BT breaks down in sunlight. Controls tent caterpillars, gypsy moths, cabbage loopers, tomato horn worms and more. 8-Ounce

Product Details

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See the instructional manual for this product [PDF]
  • Product Dimensions: 5 x 3 x 2 inches ; 9.6 ounces
  • Shipping Weight: 1.2 pounds (View shipping rates and policies)
  • Domestic Shipping: Item can be shipped within U.S.
  • International Shipping: This item can be shipped to select countries outside of the U.S. Learn More
  • ASIN: B000GA7ZO8
  • Item model number: 5160
  • Average Customer Review: 4.4 out of 5 stars  See all reviews (170 customer reviews)
  • Amazon Best Sellers Rank: #31,219 in Patio, Lawn & Garden (See Top 100 in Patio, Lawn & Garden)

Customer Reviews

Top Customer Reviews

Item Package Quantity: 1 Verified Purchase
I've had a huge problem with cabbage worms and other caterpillars destroying my herbs. While traditional chemical pesticides worked fairly well, I never felt all that comfortable eating my herbs after spraying them with those chemicals. When I read about BT (Bacillus thuringiensis), I thought it sounded too good to be true...a bacterium that kills caterpillars but is absolutely harmless to humans, pets, and bees. I'm so glad I tried Safer Brand Caterpillar Killer with BT! I sprayed my sad, moth-eaten herbs with BT a couple times a week for 2 to 3 weeks and I'm happy to say that there are no signs of caterpillars and my plants have really come back to life! The spray smells awful but the smell dissipates quickly and it works so I don't really care about the transient odor. I definitely recommend this product!
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I wouldn't recommend spraying this on everything - after all, caterpillars turn into the moths and butterflies that pollinate our gardens!

But if you have a plant that's sustaining caterpillar damage, this is the most specific spray available to combat only that pest. In organic gardening, specific is better since you're only killing the pest that's a problem and not the bees and beneficials in the garden.

I've been using Bt for years on roses and fruit trees with caterpillar issues. It's always preferable to just replace any susceptible plants with a sturdier variety, but if you have one or two that need help, this is the way to go.
1 Comment 24 of 24 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
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A Kid's Review on October 1, 2007
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Caterpillers had completely distroyed my basil and were beginning to work on my plum trees whne the Safer arrived. I sprayed that night and everyotehr night for a week and there had not been anymore carterpiller damage. Love this stuff!!!!

lisa
1 Comment 27 of 29 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
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Earlier this spring, I happened to notice this odd cocoon-like thing attached to one of our evergreen shrubs. Upon further inspection, it obviously was alive and there were more of them. Some things just disturb me, and this was one of those things. So I went on about my day and tried to forget this encounter.

This was my mistake. I should have immediately researched those things. Since they use the tree or shrub they're in to make their "case," they blend right in. Within months those few bagworms(I have since learned) had, to my horror, turned into thousands unnoticed. The shrubs were absolutely covered and were emitting an ominous white noise (due to the bagworms moving and munching on the shrub).

This product killed all the bagworms within a couple days. They're all still attached to the shrub, but they're dead. The smell is rather foul. Think thanksgiving gravy from last year. It made me a little noxious when I first opened it, but it doesn't bother me anymore.
I don't know if the shrubs are going to make it. If we get new ones, I'll apply this stuff often.
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I have used this for a long time but this year I tried something new and it worked. I began as soon as my squash started blooming. Every three days I would spray the stem with this product. I was faithful and my neighbor's squash on two sides all died due to squash vine borers, my test plant died too. However the squash I faithfully sprayed is still doing well. Vines up to an inch to inch and a half and no sign of borers!!! I don't need it for much else the birds keep my caterpillers away but those nasty borers nothing but this will seem to touch.

Now I don't know for 100% sure if it is the every three day hard spraying with the 16oz spray bottle, perhaps knocking the newly layed eggs off or it is the BT alone or a combination but whatever it is ... it works!!
1 Comment 28 of 33 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
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By Marj on September 29, 2011
Item Package Quantity: 1 Verified Purchase
I think BT is the best item you can have in an Organic Gardeners arsenal. It is safe for Bees, but lethal to leaf eating SOBs. I usually always spray on at dusk, because the pest seem to feed mostly at night and I don't have to worry about leaf burn in the Florida sun. Great product.
2 Comments 10 of 10 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
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Item Package Quantity: 1 Verified Purchase
I grow vegetables and perpetually battle worms on my cabbage and broccoli. I decided to give BT a try as many of my home remedies helped but didn't stop the worms. There are so many cabbage moths flitting around our garden it almost looks like a snow globe scene.

Using the directions on the bottle and a hand held sprayer, I applied it to my heavily infested plants. 12 hours later . . . ZERO live caterpillars! The broccoli really took off and grew once the bug pressure was gone.

The BT kept the worms knocked down for about two weeks until the next generation of cabbage moth worms hatched. Then I reapplied with the same great results. I will never stop using this product.
2 Comments 17 of 20 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
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By Donna on February 7, 2012
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I had so many fruit worms, and tobacco hornworms on my tomatoes one year, that they pretty much destroyed my crop. I tried spraying with basic pesticides, but then I couldn't eat the fruit nor were they very effective. The following year I treated my tomatoes twice with this product, just when I began to see the tiny caterpillars appear. It totally took care of the problem and my tomatoes were caterpillar free. I highly recommend this product for tomatoes.
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