Copper Sulfate

Copper Sulfate Powder

Seed Barn

Copper Sulfate Powder

  • A versatile farm chemical:
  • Pest control - snails and slugs
  • Pond cleaner - algae, mosquito larvae
  • Natural fungicide mildew
  • Antiseptic - household germs
  • Organic Bordeaux mix - blight, apple scab, leaf curl, etc.);
  • Remove old tree stumps (bore a hole and insert
  • Kill roots clogging septic tank pipes - flush down the toilet.
  • Wood and canvas preservative (prevents dry rot),

...or simply grow lovely blue crystals.

Usage: For pipeline systems (toilets, etc.) - 1 cup down drains every 2 weeks or 2 cups per month.

Customer Reviews

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Based on 12 reviews Average Product Rating 4.7 stars
5 Star Rating - 10 Customer Reviews (10)
4 Star Rating - 0 Customer Review
3 Star Rating - 2 Customer Reviews
2 Star Rating - 0 Customer Review
1 Star Rating - 0 Customer Review
  • P
    Pamela Newman P. N. Pamela N. us

    Not what I ecpected

    I did not expect to receive such fine powder. I would have preferred larger crystals that would be easier to spread in our retention pond.

  • J
    JW Allen J. A. JW A. nl

    Poor packaging

    You wrapped the bag of the product tightly in a USPS envelope. Usually, I can cut the USPS envelope with scissors. In this case, that also cut the bag of copper sulfate. It ended up spilling all over the work bench.

  • T
    Tina Northcutt T. N. Tina N. us

    Good Price

    Good price and USA company. I would buy from your company again!

  • A
    Aleksey Betev A. B. Aleksey B. us

    So far, so good

    Fast delivery.

  • g
    george szydlowski G. S. george s. us

    good buy

    good buy

  • M
    Michael R. M. R. Michael R.



  • Y
    Yuriy S. Y. S. Yuriy S.

    Quick delivery . Very helpful.

    Quick delivery . Very helpful.

  • P
    Pankaj Kapadia P. K. Pankaj K. us


    Fair shipment.

  • S
    Steven Sekulich S. S. Steven S. us

    retired engeneer

    very good service and price,

  • L
    Lee Zewatsky L. Z. Lee Z. us

    fast service

    Copper Sulfate Powder

  • A
    Aelita Khorochilova A. K. Aelita K. us

    Cooper arrived in good condition after 5 days


  • D
    Danielle Blondin D. B. Danielle B. us

    As described and shipped quick

    Excellent service and product

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