Does copper sulfate work on roots?

Asked By: Walquiria Urgesi | Last Updated: 13th January, 2020
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Copper sulfate crystals are used to kill roots that may clog sewer lines. The chemical only kills roots that it directly contacts and does not travel up the roots to kill plants nor does it kill beneficial bacteria in septic tanks.

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People also ask, how long does it take for copper sulfate to kill roots?

approximately 15 days

Similarly, will copper sulfate damage pipes? To begin with, copper sulfate can be dangerous. In humans, copper sulfate exposure can cause severe eye irritation and damage to body tissue. The roots enter the top part of the pipe, but most of the copper sulfate solution flows through the bottom.

Hereof, what does copper sulfate do to tree roots?

Copper sulfate will kill not only roots growing in the sewer line but also the organisms which produce offen- sive odors. Tree roots in contact with or immersed in copper sulfate solution absorb copper for a short distance into the root system. Use of this treatment has yet to cause the loss of a tree or shrub.

What is the fastest way to kill roots in a sewer line?

The first method is to pour sodium chloride or copper sulfate, or rock salt, into your toilet. Pour a half pound of the salt into your toilet and flush as many times as you need to clean out the bowl, and repeat this process until you've flushed 2 pounds of salt into your pipes.

37 Related Question Answers Found

How do you use copper sulfate to kill roots?

Copper Sulfate Use
You can buy copper sulfate crystals at most garden supply centers and many drug stores. Pour 1/2 cup of crystals into your toilet and repeatedly flush it until all they are gone. It is better to space the small treatments over a two-week period than to give the roots a single large dose on one day.

Does RootX dissolve roots?

RootX kills roots using Dichlobenil, a proven aquatic herbicide. RootX also contains degreasing agents that strip away the grime on roots, allowing the Dichlobenil herbicide to penetrate the root ends. Unlike other root control chemicals, RootX contains no diquat dibromide, copper sulfate or metam sodium.

How long does it take copper sulfate to work?

Re: Copper Sulfate - How long does it take? 4 hours if high levels are dosed, 48 hours max. Similar for larger plants.

How often should I use copper sulfate?

Application by Slug Method: Make a dump of Copper Sulfate into the irrigation ditch or lateral at ¼ to 2 pounds per second of water per treatment. Repeat about every 2 weeks as needed. A dump is usually necessary every 5 to 30 miles depending on water hardness, alkalinity, and algae concentration.

Will copper sulfate kill a tree?


Copper sulphate is a poison often used to discourage tree roots from growing into vulnerable areas such as sewer lines. It can, however, kill a whole tree if it is properly applied. Instead, use the copper sulphate to poison the tree more directly.

Can you pour copper sulfate down the drain?

Copper Sulfate Root Treatment
To do so, pour half a cup of copper sulfate crystals into your toilet – but not your sink or shower, as the crystals will erode the pipes and cause leaks – and flush it down the drain. If it didn't, don't fret: It may take a few days for the dead roots to break off and clear the blockage.

Is copper sulfate safe for septic systems?

Copper sulfate has been added to septic tanks in tests without harming the bacterial action in the tanks. The recommended amount is two pounds in a 300-gallon tank no more than twice a year. Most of it will settle in the solids in the tank, not the lateral lines, where tree roots may be the worst.

Does root kill Zep work?

Root Kill dissolves the roots of trees and shrubs penetrating cracks of poorly sealed joints in pipes. The professional-strength, granular formula works on contact but does not harm trees and shrubs. It is safe for septic systems and pipes.

How long does it take for root killer to work?

The reason for this is if K-77 Root Killer cannot get to the roots, it cannot kill them. K-77 Root Killer should clear your system of roots in anywhere from 2 days to 2 weeks. The time it takes depends on the severity of your root problem, and where in the system the root problem is occurring.

What is copper sulfate good for?


Copper sulfate is a fungicide used to control bacterial and fungal diseases of fruit, vegetable, nut and field crops. Some of the diseases that are controlled by this fungicide include mildew, leaf spots, blights and apple scab.

Will copper sulfate kill grass and weeds?

All too often we get callers that say they are using our copper sulfate and it isn't killing their pond weeds… Well…we say…that is because copper sulfate is not the product you use to kill pond weeds. Copper is fantastic for algae but does very little for 95% of any variety of pond weed.

How do you use copper sulfate?

Granular copper sulfate can be applied in one of three different ways: broadcast crystals, place crystals in a burlap bag and drag behind boat, or dissolve crystals and spray. The application method we recommend is to dissolve the crystals in hot water and spray actively growing algae.

Why is copper sulfate dangerous?

Copper sulfate is a severe eye irritant and can cause substantial damage to the eyes. If inhaled, the dust can cause respiratory irritation. Copper sulfate should not be ingested. Doing so will cause serious diarrhea and vomiting.

Can you buy copper sulfate?

Stores That Sell Copper Sulfate
This product contains solid granules of copper sulfate. Less commonly, you can find copper sulfate granules sold as an algicide for ponds. Ask for an algicide solid or powder and make certain the product is labeled as copper sulfate or copper sulfate pentahydrate.

What is the best tree root killer?


Top 10 Best Sewer Line Root Killer
  • Roebic Laboratories K-77 Root Killer Copper Sulfate.
  • Root Reach Foaming Root Killer.
  • Sanco Industries Root Destroyer Copper Sulfate Pentahydrate.
  • Rooto Corp.
  • ROOTX Root Intrusion Solution Kit.
  • Green Gobbler Foaming Root Killer for Sewer Lines.

What is copper sulfate pentahydrate used for?

Copper Sulfate Pentahydrate. Copper Sulfate Pentahydrate is the most common sulfate salt of copper. The blue, crystalline inorganic compound is a potent emetic used as an antidote for phosphorus poisoning. It is also used to prevent the growth of algae.

Is copper sulfate bad for the environment?

Organisms need copper for their normal function and adjust their internal environment to keep copper levels steady. Too much copper sulfate can damage the skin, affect the stomach and intestines, and irritate the respiratory tract. Freshwater fish and invertebrates are very sensitive to copper.