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Captain Jack's Organic Natural Concentrate Garden insect killer 16 -fl oz

Ratings & Reviews for Bonide Captain Jack's Organic Natural Concentrate Garden insect killer 16 -fl oz

4.5
435
Review
 4.5 out of 5
435 Reviews


88% Recommend this product

Ratings may include incentivized customer reviews.

What Customers Are Saying

Customers overwhelmingly praise this natural concentrate for its exceptional effectiveness against aphids, whiteflies, gnats, spider mites, and powdery mildew. Reviewers consistently highlight the organic, non-toxic formula as a safer alternative to synthetic pesticides, valuing its safety for vegetables, pets, and the environment. Many appreciate the concentrate format, noting that a little goes a long way and makes up to 20 gallons of solution, offering excellent value. Users find it easy to mix and apply with standard sprayers. A few mention the strong odor and note limited effectiveness against Japanese beetles, requiring repeated applications on some pests. Overall, most customers consider it an essential, highly effective solution for organic gardening.

Customer review summary generated by AI, including incentivized reviews.
435 Customer Reviews

very sludgy

Would Recommend

much cheaper than buying premixed but be aware that it's almost a semi-solid and you'll have to consult the documents on the proper mix ratio for your needs. The lid doubles as a built in measuring cup but because of the oily nature of the product, you might just want to use something else or you'll have to spend time really cleaning it before inverting back on the package...lid might be better for a tank size sprayer for accuracy but if making your own 32 ounce or so spray bottle, won't be a...

May 1, 2026
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All natural product that is easy to use.

Would Recommend

This product works well for bugs on plants

April 29, 2026
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I bought it for my grapes and apple tree.

Would Recommend

This product was highly rated on the internet.

April 29, 2026
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Natural

Would Recommend

I had some pests that I couldn’t get rid of and I have a natural garden. This worked to reduce the amount of pests without harming my plants!

April 29, 2026
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Good stuff. Like the concentrate.

Would Recommend

Neem oil does the trick on aphids and other pests. This is the first time I bought the concentrate - makes a lot of sense. I top is actually a measuring cup and works quite well. This small container will make GALLONS of spray for your pests. Highly recommend. And, it happened to be on sale the day I bought it.

April 26, 2026
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None

Would Recommend

Worked as advertised and easy to use.

April 24, 2026
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Strong Horrible Smell

Would Not Recommend

This product has a strong horrible smell and almost killed my plants when I sprayed the soil. It works to kills gnats on contact but it is too strong. Use more water than product.

April 21, 2026
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it kills some bugs

kind of expensive but I needed it now and couldn't wait for shipping

April 18, 2026
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Very not worth

Would Not Recommend

Did not work

April 18, 2026
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It works great!

Would Recommend
April 18, 2026
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