One-time purchase:
$17.98
FREE delivery Sunday, May 19 on orders shipped by Amazon over $35
Ships from: Amazon.com
Sold by: Amazon.com
Get Fast, Free Shipping with Amazon Prime FREE Returns
FREE delivery Sunday, May 19 on orders shipped by Amazon over $35
Or fastest delivery Saturday, May 18. Order within 1 hr 19 mins
In Stock
$$17.98 () Includes selected options. Includes initial monthly payment and selected options. Details
Price
Subtotal
$$17.98
Subtotal
Initial payment breakdown
Shipping cost, delivery date, and order total (including tax) shown at checkout.
Ships from
Amazon.com
Ships from
Amazon.com
Sold by
Amazon.com
Sold by
Amazon.com
Returns
30-day easy returns
30-day easy returns
This item can be returned in its original condition for a full refund or replacement within 30 days of receipt.
Read full return policy
Returns
30-day easy returns
This item can be returned in its original condition for a full refund or replacement within 30 days of receipt.
Read full return policy
Payment
Secure transaction
Your transaction is secure
We work hard to protect your security and privacy. Our payment security system encrypts your information during transmission. We don’t share your credit card details with third-party sellers, and we don’t sell your information to others. Learn more
Payment
Secure transaction
We work hard to protect your security and privacy. Our payment security system encrypts your information during transmission. We don’t share your credit card details with third-party sellers, and we don’t sell your information to others. Learn more
Save up to 5% on auto-deliveries.

Unlock 5% savings

Save 5% when you receive 5 or more products in one auto-delivery to one address.

Choose how often it's delivered

From once every 2 weeks to once every 6 months

Skip or cancel any time

We'll send you a reminder before each delivery.
Learn more
FREE delivery Sunday, May 19 on orders shipped by Amazon over $35
Or fastest delivery Saturday, May 18. Order within 1 hr 19 mins
In Stock
Deliver every:
×

Added to cart

$$17.98 () Includes selected options. Includes initial monthly payment and selected options. Details
Price
Subtotal
$$17.98
Subtotal
Initial payment breakdown
Shipping cost, delivery date, and order total (including tax) shown at checkout.
Ships from and sold by Amazon.com

Bonide Captain Jack Copper Fungicide 16 oz Concentrated Plant Disease Control Solution for Organic Gardening

4.5 4.5 out of 5 stars 8,697 ratings
Amazon's Choice highlights highly rated, well-priced products available to ship immediately.
Amazon's Choice in Garden Fertilizers by Bonide
$17.98 with 5 percent savings
List Price: $18.99

The List Price is the suggested retail price of a new product as provided by a manufacturer, supplier, or seller. Except for books, Amazon will display a List Price if the product was purchased by customers on Amazon or offered by other retailers at or above the List Price in at least the past 90 days. List prices may not necessarily reflect the product's prevailing market price.
Learn more
Get Fast, Free Shipping with Amazon Prime
FREE Returns
16 Fl Oz
{"desktop_buybox_group_1":[{"displayPrice":"$17.98","priceAmount":17.98,"currencySymbol":"$","integerValue":"17","decimalSeparator":".","fractionalValue":"98","symbolPosition":"left","hasSpace":false,"showFractionalPartIfEmpty":true,"offerListingId":"uBkH1qY3JV5659%2FM%2BO%2BkhGyU1CFYE1KdD4Y9AFCuIIAwGTNnXzsQ8Z4Yw3mGCyHY6jFeoT204sQLC38vdL9b1%2BYATR%2B3XV8tIX%2FWg4Z%2F44xgK7iPgT81JagAUfHysXN9vf%2Fogjb3d0dyKMgn0IEUFw%3D%3D","locale":"en-US","buyingOptionType":"NEW","aapiBuyingOptionIndex":0}, {"displayPrice":"$17.98","priceAmount":17.98,"currencySymbol":"$","integerValue":"17","decimalSeparator":".","fractionalValue":"98","symbolPosition":"left","hasSpace":false,"showFractionalPartIfEmpty":true,"offerListingId":null,"locale":"en-US","buyingOptionType":"SNS","aapiBuyingOptionIndex":1}]}

Purchase options and add-ons

Item Form Liquid
Item Weight 1.27 Pounds
Liquid Volume 16 Fluid Ounces
Brand Bonide

About this item

  • Control fungus and disease in your garden with Captain Jack’s Liquid Copper Fungicide Concentrate!
  • Approved for organic gardening, this fungicide is suitable for the production of organic produce and can even be used up until the day of harvest!
  • Copper Fungicide effective in the control and prevention of a wide range of plant diseases. Listed common garden diseases include blight, black spot, powdery mildew peach leaf curl and more.
  • Apply copper fungicide to fruits, vegetables, ornamentals and other plants in your lawn and garden for complete and long-lasting disease control.
  • This product arrives conveniently ready-to-mix! To use, mix with water according to package directions and thoroughly apply to affected plants. Please see product label for full use instructions.

Customer ratings by feature

Easy to use
4.5 4.5
Value for money
4.3 4.3
Accuracy
4.3 4.3
See all reviews

Frequently bought together

Bonide Captain Jack Copper Fungicide 16 oz Concentrated Plant Disease Control Solution for Organic Gardening
$17.98
Get it as soon as Sunday, May 19
In Stock
Ships from and sold by Amazon.com.
+
Chapin 20000 Made in USA 1 -Gallon Lawn and Garden Pump Pressured Sprayer, for Spraying Plants, Garden Watering, Weeds and Pe
$14.98
Get it as soon as Sunday, May 19
In Stock
Ships from and sold by Amazon.com.
+
Bonide Captain Jack's Deadbug Brew, 32 oz Concentrate Outdoor Insecticide and Mite Killer for Organic Gardening
$29.44
Get it as soon as Sunday, May 19
In Stock
Ships from and sold by Amazon.com.
Total price:
To see our price, add these items to your cart.
Details
Added to Cart
Choose items to buy together.

From the manufacturer

Captain Jack with tagline Protect Your Oasis and Bottle of Concentrated Copper Fungicide
Image shows copper fungicide can be applied during growing and dormant seasons to buds and flowers
For organic gardening, can be used indoors and outdoors on various plants
Nature Inspired Solutions from Captain Jack control plant diseases
Bottle of Captain Jack's Copper Fungicide Concentrate for Organic Gardening Bottle of Captain Jack's Ready-to-Spray Copper Fungicide for Organic Gardening Bottle of Captain Jack's Ready-to-Use Copper Fungicide Spray for Organic Gardening
Copper Fungicide Concentrate Ready-to-Spray Copper Fungicide Ready-to-Use Copper Fungicide
Customer Reviews
4.5 out of 5 stars
8,697
4.4 out of 5 stars
835
4.4 out of 5 stars
5,350
Price $17.98 $24.99 $10.98
For Organic Gardening ✓ ✓ ✓
Application Method Mix with water and apply using a sprayer bottle or pressure tank sprayer Attach to garden hose and spray directly on affected plants Use trigger sprayer bottle to spray directly on affected plants
Can be applied up to day of harvest ✓ ✓ ✓

Product information

Warranty & Support

Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.

Feedback

Bonide Captain Jack Copper Fungicide 16 oz Concentrated Plant Disease Control Solution for Organic Gardening

Bonide Captain Jack Copper Fungicide 16 oz Concentrated Plant Disease Control Solution for Organic Gardening

Found a lower price? Let us know. Although we can't match every price reported, we'll use your feedback to ensure that our prices remain competitive.

Where did you see a lower price?

Fields with an asterisk * are required
/
/
/
/
Please sign in to provide feedback.

Looking for specific info?

Product guides and documents

Instructions for Use (IFU) (PDF)

Product Description

Liquid Copper Fungicide Concentrate

Controls powdery mildew, downy mildew, black spot, peach leaf curl, rust, and other listed diseases. Perfect for use on vegetables, roses, fruits, nuts, herbs, ornamentals, and turf. Incredibly easy to apply and can be used up to the day of harvest.

About Bonide:Bonide has been trusted since 1926 as the leader in providing the best possible products and solutions for home, lawn, and garden pest problems. Based out of Oriskany, New York, we continue to grow our reputation as a leader in the lawn and garden care categories by delivering the highest quality products alongside our great customer service. Our goal is to help consumers throughout their entire purchasing process by recognizing signs of trouble, developing the best solutions, and recommending the perfect products.

Compare with similar items

This Item
Bonide Captain Jack Copper Fungicide 16 oz Concentrated Plant Disease Control Solution for Organic Gardening
Bonide Captain Jack Copper Fungicide 16 oz Concentrated Plant Disease Control Solution for Organic Gardening
Recommendations
Bonide 811 Copper 4E Fungicide 16oz (473ML) (2 Pack)
Bonide 811 Copper 4E Fungicide 16oz (473ML) (2 Pack)
dummy
Spectracide Immunox Fungus Plus Insect, 1 Pack
Spectracide Immunox Fungus Plus Insect, 1 Pack
dummy
Spectracide Immunox Multi-Purpose Fungicide Spray Concentrate For Gardens 16 Ounces, Protects Up To 2 Weeks
Spectracide Immunox Multi-Purpose Fungicide Spray Concentrate For Gardens 16 Ounces, Protects Up To 2 Weeks
dummy
Bonide Captain Jack's Deadbug Brew, 32 oz Concentrate Outdoor Insecticide and Mite Killer for Organic Gardening
Bonide Captain Jack's Deadbug Brew, 32 oz Concentrate Outdoor Insecticide and Mite Killer for Organic Gardening
dummy
Scotts DiseaseEx Lawn Fungicide, Controls and Prevents Disease Up to 4 Weeks, Treats Up to 5,000 sq. ft., 10 lbs.
Scotts DiseaseEx Lawn Fungicide, Controls and Prevents Disease Up to 4 Weeks, Treats Up to 5,000 sq. ft., 10 lbs.
Details
Added to Cart
Details
Added to Cart
Details
Added to Cart
Details
Added to Cart
Details
Added to Cart
Details
Added to Cart
Price-5% $17.98
List: $18.99		-5% $38.76
Typical: $40.76		$17.22-26% $12.79
List: $17.30		-9% $29.44
List: $32.49		-12% $22.99
List: $25.99
Delivery
Get it as soon as Sunday, May 19
Get it as soon as Sunday, May 19
Get it as soon as Sunday, May 19
Get it as soon as Tuesday, May 21
Get it as soon as Sunday, May 19
Get it as soon as Sunday, May 19
Customer Ratings
4.54.5 out of 5 stars8,697
4.74.7 out of 5 stars175
4.44.4 out of 5 stars1,988
4.54.5 out of 5 stars2,063
4.64.6 out of 5 stars4,777
4.44.4 out of 5 stars12,759
Easy to use
4.5
4.7
4.5
4.7
4.6
4.6
Value for money
4.3
4.4
3.9
4.5
4.3
3.9
Sold By
Amazon.com
Endlessmart
Amazon.com
WesternProducts
Amazon.com
Amazon.com
liquid volume
16 fluid ounces
473 milliliters
32 fluid ounces
16 fluid ounces
32 fluid ounces
0 liters
form
Liquid
Liquid
Spray
Spray
Spray
Patch
weight
1.27 pounds
16 ounces
2.43 pounds
1.2 pounds
2 pounds
10 pounds

Customer reviews

4.5 out of 5 stars
4.5 out of 5
8,697 global ratings

Customers say

Customers like the value, performance, and color of the pesticide. For example, they mention it's the best value for the money, works well for flowers, mangoes, and peach trees, and is efficient in controlling spring fungus. That said, they appreciate the organic, quality, and ease of use. Opinions are mixed on disease resistance and toxicity.

AI-generated from the text of customer reviews

367 customers mention308 positive59 negative

Customers like the performance of the pesticide. They say it works well for flowers, mangoes, and peach trees. They also say it's easy to use and efficient in controlling spring fungus. Customers also say that it'll bring healthy new growth to their plants.

"...Now this year April, ( live in NC) Both shrubs are completely fungus free and look beautiful. This did now harm my Shrubs." Read more

"Worked great on my crabapple that had a blight" Read more

"...of my problem, it allowed me to manage the issue and still maintain a somewhat healthy, fruitful, garden this year...." Read more

"...this product to treat a fugus on my two Queen Plam trees and it works very well. I treated the trees every week for three months." Read more

46 customers mention37 positive9 negative

Customers like the value of the product. They say it's the best value for the money, saves money over pre-mixed stuff, and is more affordable than pre-made. They also say it helps keep their rose bushes looking nice and is a cost effective solution to fungal infections.

"Concentrate works just as well as the pre mixed. Better value mixing it up as needed. Really helps to keep my rose bushes looking nice." Read more

"...Then we found this which has to be mixed, but is much more cost effective...." Read more

"This is the best way to buy this product as it a value per oz is unmatched. Works great for fungus on my perennials." Read more

"I use this every year. Great product & company. Make sure it isn’t tampered with." Read more

41 customers mention41 positive0 negative

Customers find the pesticide easy to use and mix. They say it's straightforward to use, and it'll mix with water easily. Customers also mention that it'd be easy to apply to fruit trees.

"...earlier today, now I wait and hope that it kills the fungus Wasn’t hard to mix or use. Fast shipping" Read more

"...Was easy to mix and apply with a sprayer...." Read more

"...Very easy to apply! No mess, I just mixed in my sprinkling can and applied.." Read more

"Easy to use. WORKS quickly 1" Read more

18 customers mention13 positive5 negative

Customers like the color of the product. They say that it makes their plants deep dark green with no signs of blight. They also say that the leaves are bright green again in just a few weeks. Customers also mention that it fights black spot on tomatoes and powdery mildew on cucumbers.

"...this fungicide and sprayed to my trees, within days, there are no more brown leaves. Very effective, highly recommend." Read more

"...The brown spots are still there on some leaves, but the leaves are green - so that seems like a good sign...." Read more

"...a fungus problem after repeated applications but it colors the leaves and everything blue." Read more

"...As it is, the spots are growing very, very slowly, a d new leaves are black-free." Read more

15 customers mention15 positive0 negative

Customers find the pesticide organic, great for organic gardening, and the best eco solution. They also mention it's made of natural oil extracts and hormones and is a non-toxic organic solution.

"I really like this happy jack fungicide spray because it's organic. It works really well on my tomatoes make like grapes and also my flowers...." Read more

"...Like that it’s safe, made of natural oil extracts & hormones, and can be applied directly to fruits and vegetables...." Read more

"I really liked that this product is organic...." Read more

"...Both these products are organic which is better than chemicals. BTW, Bonide is also organic which should be used for fruits and other edible plants." Read more

13 customers mention13 positive0 negative

Customers are satisfied with the quality of the pesticide. They mention that it's a good product, it lasts u very long time, and it'll definitely knock the wilt back. It's also good for controlling diseases and allowing them to manage the issue. Customers also say that it controls garden mollusks, which are copper-sensitive, and slugs and snails.

"...While the product didn’t fully get rid of my problem, it allowed me to manage the issue and still maintain a somewhat healthy, fruitful, garden this..." Read more

"...Sprayed with this stuff and definitely knocked the wilt back...." Read more

"...My plants look healthy, they're thriving and they are producing tomatoes...." Read more

"...As other stated, you do have to be careful because this stuff is strong, so test a little area first." Read more

29 customers mention15 positive14 negative

Customers are mixed about the disease resistance of the pesticide. Some mention that it keeps the powdery mildew from getting worse, and it kills powdery mold on pumpkins. However, some say that it only has moderate success, with some fungal diseases still impacting their plants.

"This kept the powdery mildew from not getting worse, but didn’t necessarily get rid of it 100%. I think it would be best to use prophylactically." Read more

"...By the time I was able to plant them, they had become diseased with black spots and yellowing leaves...." Read more

"...I also use it on ornamental plants. It does a good job suppressing powdery mildew but, again, does not eliminate the disease...." Read more

"Just not sure it worked. One plant is still diseased and I used several fungicides on it already, copper being the last one. None of them worked...." Read more

16 customers mention8 positive8 negative

Customers are mixed about the toxicity of the product. Some mention it's relatively non-toxic, and certified safe around humans, pets, and bees. However, others say it'd be very toxic to the environment, killing fish, aquatic invertebrates, earthworms, and other animals. The product also has extreme safety warnings.

"Earth's Ally Fungicide is certified safe around humans, pets and bees by the Organic Material Review Institute (OMRI),...." Read more

"...2. This product has extreme safety warnings; however, you will become desperate enough to make peace with this limitation...." Read more

"...Its easy to use. I like the fact its relatively non toxic, though I wear old clothes I wash afterwards just in case... And spray at dusk to avoid..." Read more

"...I thought I was observing all precautions and still ended up with chemical burns on my arms and legs as well as conjunctivitis...." Read more

This saved my crop of over 100 tomato plants in NC.
5 Stars
This saved my crop of over 100 tomato plants in NC.
I have used this for several years on my tomato plants in NC. This product sprayed only ONCE saved all my tomato plants (between 75 and 150 plants) from being pulled up and discarded, year after year. Purchase this along with your seeds, soil and fertilizer in the late winter. Extremely important in hot and humid climates along the southeastern US seaboard.
Hide
Thank you for your feedback
Sorry, there was an error
Sorry we couldn't load the review

Top reviews from the United States

Pilotcop
5.0 out of 5 stars This will stop leaf Fungus
Reviewed in the United States on May 2, 2024
Size: 16 Fl OzVerified Purchase
Stupid me, I had a shrub with white fungus. I trimmed it and moved to a similar shrub in another flower
bed and trimmed it. OF course I spread the fungus.
Me, then started pouring alcohol on the hedge trimmer between cutting another shrub would have stopped that. That was last summer. I also sprayed this product on the arrected shrubs. New leaves coming out didn't get the fungus.
Now this year April, ( live in NC) Both shrubs are completely fungus free and look beautiful. This did now harm my Shrubs.
4 people found this helpful
Helpful
 Report
David
5.0 out of 5 stars Great price
Reviewed in the United States on May 9, 2024
Size: 16 Fl OzVerified Purchase
Worked great on my crabapple that had a blight
Helpful
 Report
JR
4.0 out of 5 stars Put up a great fight
Reviewed in the United States on September 30, 2023
Size: 16 Fl OzVerified Purchase
without this product, I wouldn’t have a garden at all. We had to consistently treat all summer, and to no avail, they would return. While the product didn’t fully get rid of my problem, it allowed me to manage the issue and still maintain a somewhat healthy, fruitful, garden this year. Without it, I’d have no plants left at all.
16 people found this helpful
Helpful
 Report
DPW
5.0 out of 5 stars Great product
Reviewed in the United States on May 3, 2024
Size: 16 Fl OzVerified Purchase
I bought this product to treat a fugus on my two Queen Plam trees and it works very well. I treated the trees every week for three months.
One person found this helpful
Helpful
 Report
Tammy
5.0 out of 5 stars I’m hoping this works on my Gardenias
Reviewed in the United States on April 13, 2024
Size: 16 Fl OzVerified Purchase
I sprayed my outside gardenia’s earlier today, now I wait and hope that it kills the fungus Wasn’t hard to mix or use. Fast shipping
3 people found this helpful
Helpful
 Report
P Kelly
3.0 out of 5 stars Spill
Reviewed in the United States on December 21, 2023
Size: 16 Fl OzVerified Purchase
It leaked out some time ago. Did I get someone’s return? Mess.
I really Needed it so I used it. Can I get another for half price to replace list volume?
8 people found this helpful
Helpful
 Report
Pearl Taylor
5.0 out of 5 stars Great
Reviewed in the United States on May 8, 2024
Size: 16 Fl OzVerified Purchase
Used it for peach leaf curl. Takes care of it.
2 people found this helpful
Helpful
 Report
Harry
5.0 out of 5 stars This is best
Reviewed in the United States on May 5, 2024
Size: 16 Fl OzVerified Purchase
Best for peach culture leaf disease.
Helpful
 Report

Top reviews from other countries

T. Deegan
5.0 out of 5 stars Working ok!!
Reviewed in the United Kingdom on April 14, 2024
Size: 16 Fl OzVerified Purchase
Our peach has been overwhelmed by leaf curl. Seems to have reduced it by at least 70-80% with one late winter spraying of this.
2 people found this helpful
 Report
Product as described, fast delivery. Thank you
5.0 out of 5 stars Copper solution for fungus
Reviewed in the United Kingdom on March 15, 2024
Size: 16 Fl OzVerified Purchase
So far works well. I cut down branches from my trees and niw bew leaves come back.
So far no sign of fungus
Report
Christine Timmons
4.0 out of 5 stars Fungicide
Reviewed in the United Kingdom on January 13, 2024
Size: 16 Fl OzVerified Purchase
Just what I need
Report
Andrew Peel
5.0 out of 5 stars Peach curl.
Reviewed in the United Kingdom on November 28, 2023
Size: 16 Fl OzVerified Purchase
Bought this to irradiate peach leaf curl. This is ment to help.
May be a long process so only time will tell
Prompt delivery. I will keep you posted
Report
Geoff Bray
5.0 out of 5 stars Blight fungicide
Reviewed in the United Kingdom on October 9, 2023
Size: 16 Fl OzVerified Purchase
Having lost the whole of our Christmas potato crop to Late Potato Blight, copper fungicide appears to be the only method to halt the spread once detected. This will be ready for any future outbreak, though this year has been a bad year for blight.
Report