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Bonide® Copper Fungicide

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Description

Copper-based fungicide for use in organic gardening. Helps suppress and control diseases like brown rot blossom blight, downy and powdery mildew, peach leaf curl, fireblight, rust, leaf spot, and more — for fruit trees, berry plants and vines, vegetables, and flowers. Ready to use. Label includes instructions for application as a dust or as a spray. Intended for use as a modern replacement for bordeaux.

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Questions & Answers

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Browse 15 questions Browse 15 questions and 28 answers
Why did you choose this?
Stark Bro's Store
Good for grapes
Charles S on Jan 8, 2017
Recommended by local apple grower.
Joan D on Mar 30, 2016
Good for grapes
Charles S on Jan 8, 2017
Need treatment for peach tree leaf curl.
Cheryl K on May 30, 2016
Recommended by local apple grower.
Joan D on Mar 30, 2016
Need to stop mildew on some of my flowers example roses and zinnias.
JANET M on Mar 7, 2016
Need treatment for peach tree leaf curl.
Cheryl K on May 30, 2016
Need to stop mildew on some of my flowers example roses and zinnias.
JANET M on Mar 7, 2016
We have a serious leaves.curl desease on my peach tree, now is early June fruits already form , is it too late to apply the copper fungide treatment ?
Anh T on Jun 5, 2016
BEST ANSWER: Once symptoms of leaf curl appear, it is too late to control the disease that season. Fungicides are not effective against this particular disease after budbreak. Prune your tree this fall, remove and destroy the fallen leaves and pruning debris, and then make your leaf curl application (as directed by the product label) while the tree is dormant.
how much do i use to spray peach trees?
silviodenunzio on Mar 21, 2016
BEST ANSWER: I have only used it on very young trees (apple, pear, peach and cherry). I mix the powder iwith water in a spray bottle and spray the leaves and stems/trunk with the spray so that a thin layer of spray is left behind. When it dries it looks like a dusting of powder. If you use too much it will just wash off in the next rain, so that is not a big problem (except wasting the product/money). The product is essentially non-toxic, so it will harm other vegetation when it washes out, and it will not pollute waterways (unless you dump the whole container in a stream, but who would do that!). Too little (if you can't see the dusting at all when dry) will not give you protection. Good luck and happy peaches!
how much does one bottle make in gallons?
Lisa B on May 9, 2016
BEST ANSWER: There is no way to offer this information accurately because, depending on what you're spraying (apple tree, blueberry plant, etc.), the amount of product you use per gallon of water varies to a great degree. Take a look at the label here: http://www.bonide.com/assets/Products/Labels/l771.pdf
can copper be used on pear trees for fireblight ?
MARK S on Jan 21, 2017
BEST ANSWER: Here's an answer posted by another customer: "I have used the copper fungiside to treat Fireblight on a pear tree. I have seen no sign of it hurting birds that love to sit in the pear tree."
how do I get rid of apple borer?
Nancy S on Jun 2, 2017
BEST ANSWER: There are several types of 'apple borer,' all different species. A search found
roundheaded apple tree borer, flatheaded apple-tree borer,
dogwood borer (and the uncommon look-alike, apple bark borer),
leopard moth, and broad-necked root borer. Some people also consider
pith moth and European corn borer as apple borers. So I can't answer your question
accurately without knowing which species. The copper fungicide I bought at Stark, however,
does not control most insects, it's for fungus.
how much powder to add to water for spraying for grapes?
Elizabeth W on Jun 11, 2017
BEST ANSWER: This is a liquid product. The label says to mix 0.5 to 2.0 fluid ounces of this product in a gallon of water. Repeat application every 7-10 days if necessary. Here is a link to the package label: //www.bonide.com/assets/Products/Labels/l811.pdf
I have orange sawdust on a couple of my apple trees. Anyone know what this is and how to get rid of the source? The orange material is on the root bulb.
Nancy S on Jun 2, 2017
BEST ANSWER: You most likely have wood borers. You will need a pesticide to keep them under control as this product is for working on fungus. bonide does have some other good products for dealing with pests.
What is the best way to apply this product to Grapes and can I apply it to my tomatos with the same leaf spot issues?
Harry D on Apr 20, 2017
BEST ANSWER: This product is recommended for grapes as well as tomatoes. Your options for applying the product are either as a dust or mixing with water in a tank or hand sprayer. The application instructions for both methods are included on the label.
I would like to use on my cherry trees this spring if necessary. Last August they seemed to get fungal rot and dropped their leaves. Is this the right approach?
c h on Apr 12, 2017
BEST ANSWER: Yes! This is an excellent product for fungal disease.
Use on Asian pear, plum, apricot ?
Isidro on Jan 29, 2017
BEST ANSWER: According to the current label, this product can be used on Apple, Blackberry, Blueberry, Caneberry (Boysenberry, Loganberry, Marionberry, etc.), Cherry, Garlic, Grape, Nectarine, Onion, Peach, Pear, Potato, Quince, Raspberry, Roses, Strawberry, and Tomato.
In the directions for spraying pears it says to use Hydrogenated lime. Will calcium lime (like Super Sweet) work as well?
Joanne C on Jan 5, 2017
BEST ANSWER: Hydrated lime and calcium hydroxide (typically used for "sweetening" soil/raising pH) are the same thing. What you're reading is likely referring to creating a Bordeaux mixture, which can be combined for use with the copper fungicide, but is not mandatory.
Will these sprays hurt birds?
Melissa M on Jun 9, 2016
BEST ANSWER: I have used the copper fungiside to treat Fireblight on a pear tree. I have seen no sign of it hurting birds that love to sit in the pear tree.
Can you use copper spray after the cherry tree has bloomed?
Cheryl D on Apr 19, 2016
BEST ANSWER: Cheryl,
You need to wait until the petals have fallen and the pollinators have stopped visiting the tree.
Then you will need to follow the directions carefully. Although copper is "organic" (it's really "inorganic", though) you still to be careful when handling it and spraying because it is toxic.

Customer Reviews

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Fungi
It works supper good I have used it on four trees three times will use it more this summer buy it it works very good
January 19, 2017
Purchased
1 year ago
Bonide Copper Fungicide
Perfect product it worked like magic with one spray
June 2, 2016
Purchased
1 year ago
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