|
Product |
Extract of Barley Straw |
Barley Straw |
Bacteria/Enzyme |
UV Light |
Copper, incl.
Chelated |
Polymers |
Chemical Pesticides |
|
Characteristic |
All
natural solution |
All natural plant |
Liquid, dry powder,
water soluble bags |
Ultra-violet waves of
light |
Liquid and granular |
Liquid and granular |
Various forms |
|
Key
Ingredient |
Plant
materials resulting from decomposition |
Plant materials
resulting from decomposition |
Naturally occurring
organisms |
UV waves |
Copper as sulfate or
double-chelated |
Positive ionic, cationic
or amphoteric charges |
Various chemical
algaecides |
|
Effectiveness by Visual Assessment |
100% |
100% |
Rarely more than 50% |
Rarely more than 50%;
not effective against string or net algae |
100% |
Varies, but not
effective against string or net algae |
100% |
|
Works by |
Clarifying pond water through control of water chemistry |
Inhibiting algae growth |
Consuming nitrogen and
phosphorous, major algae nutrients |
Killing bacteria and
clumping algae |
Killing algae chemically |
Attracting and
agglomerating negatively charged algae |
Killing algae chemically |
|
Results |
Clear
water free of unwanted pond scum |
Clear water free from
algae, including string algae |
Bacteria grow faster
than algae and take food resources |
Algae can be removed |
Kills pests, but may
result in toxic build-up and harm life forms |
Algae can be removed |
Kills pests, but may
result in toxic build-up and harm life forms |
|
Dosage |
3
liters per foot acre, then 1 liter every two weeks |
3 oz per 10 square feet
of surface area |
1 oz per 25 square feet |
Volume of throughput is
specified according to size of UV lamp |
Typically 8 oz per acre
of surface area |
Typically 10 parts per
million |
Varies according to
active component |
|
Application |
Pour
or spray liquid |
Float, suspend or sink
bales or bundles |
Re-hydrate in water and
pour over surface |
Filter on pump |
Dilute and then spread on
surface |
Dilute and pour into
main body of water |
Add directly to main
body of water |
|
Re-application |
2
weeks or as needed |
2 to 3 times per year |
Monthly |
Continuous |
2 to 3 times per year |
Monthly |
Varies |
|
Overdose |
None |
Deoxygenate water |
Deoxygenate water |
Make water sterile |
Can kill all life forms |
Toxic to sensitive
biological forms |
Can kill all life forms |
|
Time to
work |
1 to
2 weeks |
1 to 3 months |
1 to 3 months |
Gradually over time |
Immediate |
Immediate |
Immediate |
|
Side-effects |
None |
Messy residue to remove |
Release of nutrients
when bacteria die creates recurrent cycles of algae growth |
Release of nutrients
when bacteria die creates recurrent cycles of algae growth |
Kills 50% of fish in 96
hours; toxic to fish food chain in lakes; release of nutrients
when bacteria die creates recurrent cycles of algae growth |
Release of nutrients
when bacteria die creates recurrent cycles of algae growth |
Often toxic by
accumulation when used repeatedly; release of nutrients when
bacteria die creates recurrent cycles of algae growth |
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