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      Gard'nClean Liquid: Horticultural Algaecide, Bacteria and Slime Remover/Inhibitor

      Treats/Controls/Inhibits: Algae (Phormidium boneri) and ([Penicillium digitatum], [Botrytis sp.], [Fusarium solani], Pythium aphanidermatum, Pythium irregulare, Fusarium oxysporum f. sp. basilicum (Fob)).

      NOTE: Do not use at concentrations higher than those recommended for each application. When applied directly to plants, seeds, cuttings or flowers as directed, GC 30 does not cause adverse cosmetic effects, as testing has demonstrated. However, testing has not been performed on EVERY plant species, and users are advised to spot-test GC 30 before applying it widely.

      Active solution may be irritating if breathed. If applying solution inside greenhouse or enclosed area using a high-pressure sprayer, wear a NIOSH/MSHA-approved respirator appropriate for chlorine dioxide: after treatment, ventilate greenhouse

      OPTIONAL DILUTION INSTRUCTIONS FOR HORTICULTURAL SETTINGS: The following dilution chart is consistent with the other dilution instructions contained in this technical bulletin. It is tailored to the typical dilution ratios of 1:5, 1:10 and 1:200 necessary for some horticultural applications. Use this chart, or dilution instructions presented elsewhere, most compatible with available dilution devices.

      Screenshot 2024-03-04 at 12.18.05 PM

      1 Exceeds capacity of 55-gallon drum; activating the GC 30 in a 55-gallon drum and diluting with a 1:10 injection device will yield an application solution at a concentration of about 5.76 ppm— effective, but higher than necessary.

      2 Exceeds capacity of 55-gallon drum; activating the GC 30 in a 55-gallon drum and diluting with a 1:200 injection device will yield an application solution at a concentration of about 0.27 ppm—effective, but higher than necessary.

      NOTE: Verify concentration using Gard'nClean® Test Strips. For concentrations above 10 ppm, use Gard'nClean® Wide Range test strips; for concentrations of 10 ppm or less, use Gard'nClean® Low Range test strips.

      As a dip to control and suppress bacteria [(Erwinia chyrsanthemi)], algae (such as Phormidium boneri) and [(such as Penicillium digitatum, Botrytis sp., Fusarium solani)] on rooted or unrooted cuttings and cut flowers:

      1. Activate GC 30 according to “Directions for Use” on package label.
      2. Prepare a 5 ppm solution of GC 30 OR prepare a 500 ppm solution of GC 30 and use a 1:100 dilution device or add one part 500 ppm solution to 99 parts water.
      3. Briefly dip cuttings or cut flowers in 5 ppm solution, ensuring they remain visibly wet with solution for at least one minute.
      4. Dispose of package and spent envelope according to instructions on package label.

      To control and suppress bacteria [(Erwinia chyrsanthemi)], including algae (Phormidium boneri) and [(Penicillium digitatum, Botrytis sp.,  Fusarium solani,] Pythium aphanidermatum, Pythium irregulare, Fusarium oxysporum f. sp. Basilicum (Fob)) in seed-bed soil and planting cubes:

      1. Activate GC 30 according to “Directions for Use” on the package label.
      2. Prepare a 5 ppm solution of GC 30 OR prepare a 500 ppm solution of GC 30 and use a 1:100 dilution device or add one part 500 ppm solution to 99 parts water.
      3. Immerse or drench seed-bed soil or planting cubes and allow to remain visibly wet with solution for ten (10) minutes
      4. Dispose of package and spent envelope according to instructions on package label.

      NOTE: Soil or planting cubes can be seeded or planted immediately after treatment.

      FOR CONTINUOUS TREATMENT TO SUPPRESS BACTERIA AND INHIBIT ALGAE, BIOSLIME, SLIME, AND BACTERIA AT A CONCENTRATION OF 3.0 PPM

      1. Activate GC 30 according to "Directions for Use" on product label.
      2. Using a dosing pump, add activated GC 30 to watering system until water reaches a concentration of 3.0 ppm (required concentration levels vary according to site-specific conditions—monitor the microbial content of the water and increase or decrease the addition rate of the activated solution as needed); [higher chlorine dioxide injection rates, such as 3.0 ppm can ensure chlorine dioxide residual of up to 0.8 ppm is sufficient to provide adequate treatment]. Residual disinfectant and disinfection byproducts must be monitored as required by the National Primary Drinking Water Regulations (40 CFR Part 141) and state drinking water standards.
      3. Dispose of package(s) and spent envelope(s) according to instructions on package label. Do not reuse.

      NOTE: Use ultra-low-range Gard'nClean® Chlorine Dioxide Test Strips to verify concentration at downstream production points. Organic loads vary across water supplies, and will influence injection level necessary to ensure 3.0 ppm concentrations at emitter hoses, mist nozzles, and drip tubes.

      FOR CONTINUOUS TREATMENT TO SUPPRESS BACTERIA AND INHIBIT ALGAE, BIOSLIME, SLIME, AND BACTERIA AT A CONCENTRATION OF 0.8 PPM

      1. Activate GC 30 according to "Directions for Use" on product label.
      2. Using a dosing pump, add activated GC 30 to watering system until water reaches a concentration of 0.8ppm (required concentration levels vary according to site-specific conditions—monitor the microbial content of the water and increase or decrease the addition rate of the activated solution as needed); residual disinfectant and disinfection byproducts must be monitored as required by the National Primary Drinking Water Regulations (40 CFR Part 141) and state drinking water standards.
      3. Dispose of package(s) and spent envelope(s) according to instructions on package label. Do not reuse.

      NOTE: Use ultra-low-range Gard'nClean® Chlorine Dioxide Test Strips to verify concentration at downstream production points. Organic loads vary across water supplies, and will influence injection level necessary to ensure 0.8 ppm concentrations at emitter hoses, mist nozzles, and drip tubes.

      For removing slime and retarding its reemergence; for deodorizing or treatment applications involving algae (Phormidium boneri) and [(Penicillium digitatum, Botrytis sp., Fusarium solani,] Pythium aphanidermatum, Pythium irregulare, Fusarium oxysporum f. sp. Basilicum (Fob)); and for continuous treatment to inhibit their reestablishment in irrigation systems, flood floors, flooded benches, misting systems, humidification systems, recycled water systems and capillary mats:

      1. Activate GC 30 according to “Directions for Use” on package label.
      2. Use power sprayer to wash all surfaces to remove loose filth. Scrub surfaces using a suitable soap or detergent to ensure that no filth remains on surfaces.
      3. Prepare solutions in concentrations indicated below and ensure surfaces are wetted and remain visibly wet for the times or are applied continuously as noted below.
      4. Dispose of package(s) and spent envelope(s) according to instructions on package label.

      AS AN INITIAL OR REMEDIAL TREATMENT TO DISINFECT WATER HOLDING TANKS AND IRRIGATION/TRANSFER LINES (CLEAN-IN-PLACE APPLICATION)

        5.   Flush tank thoroughly with clean water. Activate GC 30 according to "Directions for Use" on           package label.

        6.   Prepare a 100 ppm solution of activated GC 30 OR prepare a 500 ppm solution of GC 30                 and use a 1:5 dilution device (one part 500 ppm solution to four parts water).

        7.   Fill tank completely. Run 100 ppm solution through irrigation/transfer lines and appliances           until green solution appears at the outlets. Top-off tank with solution. Circulate or let stand           in tank and lines for at least ten (10) minutes.

        8.   Drain tanks and lines, flush with clean water, and resume normal operation.

      FOR CONTINUOUS TREATMENT TO INHIBIT THE RE-ESTABLISHMENT OF SLIME, ALGAE, AND BACTERIA

        5.   Prepare a 0.25 ppm solution of activated GC 30 OR prepare a 500 ppm solution of GC 30                 and use a 1:2,000 dilution device or add one part 500 ppm solution to 1,999 parts water.

        6.   Use the prepared 0.25 ppm solution to operate the water system following normal                             application procedures.

      NOTE: Use ultra-low-range Gard'nClean® Chlorine Dioxide Test Strips to verify concentration at downstream production points. Organic loads vary across water supplies, and will influence injection level necessary to ensure 0.25 ppm concentrations at emitter hoses, mist nozzles, and drip tubes.

      FOR CONTINUOUS TREATMENT TO INHIBIT THE RE-ESTABLISHMENT OF SLIME, ALGAE, AND BACTERIA AT A CONCENTRATION OF 3.0 PPM

      1. Activate GC 30 according to "Directions for Use" on product label.
      2. Using a dosing pump, add activated GC 30 to water system until water reaches a concentration of 3.0 ppm (required concentration levels vary according to site-specific conditions—monitor the microbial content of the water and increase or decrease the addition rate of the activated solution as needed); [higher chlorine dioxide injection rates, such as 3.0 ppm can ensure chlorine dioxide residual of up to 0.8 ppm is sufficient to provide adequate disinfection]. Residual disinfectant and disinfection byproducts must be monitored as required by the National Primary Drinking Water Regulations (40 CFR Part 141) and state drinking water standards.
      3. Dispose of package(s) and spent envelope(s) according to instructions on package label. Do not reuse.

      NOTE: Use ultra-low-range Gard'nClean® Chlorine Dioxide Test Strips to verify concentration at downstream production points. Organic loads vary across water supplies, and will influence injection level necessary to ensure 0.8 ppm concentrations at emitter hoses, mist nozzles, and drip tubes.

      As an algaecide and bactericide for treating, preventing, suppressing and controlling horticultural diseases on hard, non-porous surfaces in commercial greenhouses, garden centers and nurseries:

      1. Activate GC 30 according to “Directions for Use” on package label.
      2. Pre-clean all non-plant surfaces prior to application of solution. Sweep and remove all plant debris. Use power sprayer to wash all surfaces to remove loose dirt.
      3. Prepare solutions in indicated concentrations and ensure all surfaces are wetted and remain visibly wet for the times noted below.
      4. Dispose of package and spent envelope according to instructions on package label.

      AS AN INITIAL OR REMEDIAL TREATMENT TO KILL ALGAE AND BACTERIA ON HARD NON-POROUS SURFACES ON EQUIPMENT, GREENHOUSE STRUCTURES, GLAZING, PLASTIC, BENCHES,WALKWAYS, FLOORS,WALLS, FAN BLADES, VENTILATION DUCTS, WATERING SYSTEMS, COOLERS AND STORAGE ROOMS

        5.    Prepare a 5 ppm solution of activated GC 30 OR prepare a 500 ppm solution of GC 30 and              use a 1:100 dilution device (one part 500 ppm solution to 99 parts water).

        6.    Apply the 5 ppm solution with mop, sponge or sprayer. When applying these solutions                      using a high-pressure sprayer, wear a NIOSH/MSHA-approved respirator appropriate for              chlorine dioxide.

        7.    Visibly wet all surfaces and ensure the surfaces remain visibly wet for at least one hour.

      NOTE: Heavy growths of algae or bacteria may require scrubbing to remove dead growth.

      AS A WEEKLY PREVENTATIVE TREATMENT TO KILL, CONTROL AND SUPPRESS

      BACTERIA AND CONTROL AND SUPPRESS ALGAE ON HARD NON-POROUS

      SURFACES ON EQUIPMENT, GREENHOUSE STRUCTURES, GLAZING, PLASTIC,

      BENCHES, WALKWAYS, FLOORS,WALLS, FAN BLADES, VENTILATION DUCTS,

      WATERING SYSTEMS, COOLERS AND STORAGE ROOMS

        5.    Prepare a 5 ppm solution of activated GC 30 in accordance with instructions

                above OR prepare a 500 ppm solution of GC 30 and use a 1:100 dilution device (one part                500 ppm solution to 99 parts water).

        6.    Apply 5 ppm solution with mop, sponge or sprayer. When applying these solutions using a              high-pressure sprayer, wear a NIOSH/MSHA-approved respirator appropriate for chlorine            dioxide. Visibly wet all surfaces and ensure the surfaces remain visibly wet for at least one              hour (kill/cidal) and at least one minute (suppression).

      As a dip to control and suppress bacteria [(Erwinia chyrsanthemi)] on cuttings and cut flowers:

      1. Activate GC 30 according to “Directions for Use” on package label.
      2. Prepare a 5 ppm solution of activated GC 30 OR prepare a 500 ppm solution of GC 30 and use a 1:100 dilution device (one part 500 ppm solution to 99 parts water).
      3. Briefly dip cuttings or cut flowers in 5 ppm solution and ensure they remain visibly wet with solution for at least one minute.
      4. Dispose of package and spent envelope according to instructions on package label.

      To maintain freshness and extend shelf-life for cut flowers:

      1. Activate GC 30 according to “Directions for Use” on package label.
      2. Prepare a 5 ppm solution of GC 30 in accordance with instructions above OR prepare a 500 ppm solution of GC 30 and use a 1:100 dilution device (one part 500 ppm solution to 99 parts water).
      3. Unbundle the flowers to preclude bunching, and place in vase on display or in cold storage in the 5 ppm solution of chlorine dioxide. Solution may include 2% sucrose.
      4. Refresh solution every 24 hours.
      5. Dispose of package and spent envelope according to instructions on package label.

      As a drench or spray to control and suppress bacteria, and algae in commercial mushroom growing operations (pre- and post-casing) (Not For Use In California):

      PRE-CASING:

      1. Activate GC 30 according to “Directions for Use” on the package label.
      2. Prepare a 0.8 ppm solution of GC 30 OR prepare a 500 ppm solution of GC 30 and add 0.20 ounces per gallon.
      3. Drench or spray mushroom beds until all mushrooms are visibly wet with solution. When applying these solutions using a prayer, wear a NIOSH/MSHA-approved respirator appropriate for chlorine dioxide
      4. Begin casing mushroom beds.
      5. Dispose of package(s) and spent envelope(s) according to instructions on package label.

      POST-CASING:

      1. Activate GC 30 according to “Directions for Use” on the package label.
      2. Prepare a 0.8 ppm solution of GC 30 OR prepare a 500 ppm solution of GC 30 and add 0.2 ounces per gallon.
      3. Drench or spray mushroom beds until all mushrooms are visibly wet with solution. When applying these solutions using a sprayer, wear a NIOSH/MSHA-approved respirator appropriate for chlorine dioxide.
      4. Dispose of package(s) and spent envelope(s) according to instructions on package label.

      NOTE:  Residual disinfectant and disinfection byproducts must be monitored as required by the National Primary Drinking Water Regulations (40 CFR Part 141) and state drinking water standards.

      For more information please reach out to a Gard'nClean Advisor at hello@gardnclean.com or 888-369-1975.