Copper Sulfate Crystals (Pentahydrate)*Made in the USA from the Highest Grade Materials.
- 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.
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