Dibbs Seed blue copper sulfate powder, 10 lbs, for pest control and pond cleaning
Dibbs Seed

Copper Sulfate Powder - 10 Lbs.

Key item features

  • Pure Composition: 99% pure pentahydrate copper sulfate powder, manufactured in the USA from high-grade materials.
  • Pest Control: Effective farm and garden chemical for controlling snails and slugs, and a pond cleaner to remove algae and mosquito larvae.
  • Fungicidal Properties: Functions as a natural fungicide for mildew and an organic Bordeaux mix for blight, apple scab, and leaf curl.
  • Household Antiseptic: Acts as an antiseptic to eliminate household germs and can be used to unclog septic tank pipes.
  • Stump Removal: Facilitates the removal of old tree stumps by killing roots when inserted into bored holes.
  • Preservative Uses: Serves as a wood and canvas preservative, preventing dry rot, and can also be used to grow blue crystals.
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Current price is $37.77
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Arrives between Jun 25 - Jun 29
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Sold and shipped by Dibbs Farms
4.435960591133005 stars out of 5, based on 406 seller reviews(4.4)
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4.7 out of 5 stars
stars23 ratings16 reviews
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  1. 5 stars83% (19)
  2. 4 stars13% (3)
  3. 3 stars0% (0)
  4. 2 stars4% (1)
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Showing 1-3 of 16 reviews

May 25, 2026
Kirk
Sold and shipped byDibbs Farms
5 out of 5 stars review

Verified Purchase

Used To Kill Floating Algae

Easy treatment for algae in medium/large size pond. I wore a protective mask, eye protection, gloves and old clothes and used a trowel to scoop from bag and broadcast over algae floating in water. Over the course of a week, all algae floating on top of water is gone. Some algae still growing on bottom. Ordering more to see if I can wipe it out completely.

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Helpful?3RD1BRL204VK621122961
Jan 17, 2026
Kevin
Sold and shipped bySeed Ranch
5 out of 5 stars review

Verified Purchase

As expected. Good price

This is a relative bulk buy of copper sulfate so there are no instructions for use. Just look online to figure out how much you should use per application. This is definitely cheaper than buying at a big box store. I use it to maintain my drain lines so buying in larger quantities works for me.

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May 20, 2026
Ron
Sold and shipped byDibbs Farms
5 out of 5 stars review

Verified Purchase

EXCELLENT QUALITY

I've been using 2 pounds of Copper Sulfate every year for over a decade in my septic system. It kills the roots that get into the system. The retail product, Zep, is about $7.50/lb., so buying it in bulk is FAR cheaper. And it's exactly the same stuff. This product came well packaged and worked great, as the crystals are small. You just flush 2 lbs a bit at a time and you're good to go!

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Helpful?3RD1BRL204VK621122961