Copper Sulfate Fine Crystals - 50 Lbs.

Old Bridge Chemicals, Inc.

Copper Sulfate Crystals Fine Grade

  • 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 14 reviews Average Rating 4.79 stars out of 5
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  • D
    Dave Edester D. E. Dave E.

    Excellent shipping and delivery

    Very fast product delivery. I was not fully aware that the fine was no more that dust. All good. It should mix well ...

  • P
    Peter Jagodzinski P. J. Peter J.

    Copper sulfate fine crystals

    Ordered and received in a timely manner. Fair price, excellent product, service and delivery. Will order from SeedWorld in the future.

  • S
    Shane Penn S. P. Shane P.

    Delivered well,

    Always great quality product. Bag leeks at corners a tiny bit, pretty consistent with other bags I've ordered

  • B
    Brittny Whitt B. W. Brittny W.

    Great price and fast shipping!

    Thank you!!!

  • E
    Ellen Peterson E. P. Ellen P.

    Prompt and Fair Price

    Product is a good price and delivered promptly. This is our yearly go to.

  • H
    Harry Davis H. D. Harry D.

    Pond algae

    I wanted next step up from “fine” but still usable. What should I order for next step up when I reorder?

  • R
    Robert Hunter R. H. Robert H.


    Received product each were properly boxed. Two of the three bags had leaked product into boxes through bag vents. Aslo product had leaked from boxes which was obvious due to blue material on exterior of boxes.

  • B

    Fed x damaged one of the containers and didn't leave but one .I did have to call seed world to get the other container

    Copper Sulfate Fine Crystals - 50 Lbs.

  • R
    Robert Goodman R. G. Robert G.

    Copper sulfate

    Good price on copper sulfate but expensive on shipping

  • J
    John Metzger J. M. John M.

    Fast shipment

    Product as described, arrived fast. I will defiantly order from them again.

  • Barbour . B. B.

    copper sulfate crystals 50 lb bag

    service was excellent. it arrived in a very timely manner.

  • w
    william dipman W. D. william d.


    Good price fast delivery great service.

  • S
    Sarah Koldewey S. K. Sarah K.

    Great Price, Fast Service

    This was the best deal I found on this, my plumber recommended it for killing tree roots after pulling about a garbage bag full out of the pipes of our 100 year old home. Hopefully keeps them at bay. Fast shipping and a great value

  • J
    James Hotaling J. H. James H.

    copper sulfate


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