Copper Sulfate Crystals - 20 Lbs.
Copper Sulfate Crystals (Pentahydrate) - 20 Lbs.**Made in the USA from the Highest Grade Material.
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.
Rate of use: For pipeline systems (toilets, etc.) - 1 cup down drains every 2 weeks or 2 cups per month.