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  • Basic Orchid Culture
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    • Multiply Your Plants Faster
    • Interpreting Orchid Culture Advice
  • Growing Conditions
    • Air Management
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      • Humidity
      • Evaporation
      • Humidify Your Home
    • Air Movement Around Orchids
    • Light
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      • Choosing a Light Fixture
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      • Growing Area Wall Color
    • Temperature
      • Grow Cool Plants
      • "Stretch" Your Growing Conditions
      • Sizing a Greenhouse Heater
  • Feeding & Watering
    • Fertilizers & Feeding
      • Primer on Plant Nutrition
      • Fertilizer Basics
      • Orchids and pH
      • “Bloom Booster” Fertilizers
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      • How Much Do I Feed My Orchids?
      • Must I Supplement Calcium & Magnesium?
      • Magnesium Supplementation
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      • How Important is Fertilizer?
      • K-Lite Orchid / Epiphyte Fertilizer
      • Do-It-Yourself K-Lite
      • “K-Lite Knock-Off” Calculator
      • AOS "What do Orchids Eat" Article
    • Fertilizer Additives
      • Magic Additives
      • Growth Stimulants
      • Comparing Seaweed Extracts
      • KelpMax Kelp Extract
      • Why Use KelpMax?
      • Using KelpMax Wisely
      • Multiply Your Plants
      • Plant Growth Stimulants IPA 3Q2014
      • Issues with Root Growth Stimulants
      • What do Plant Probiotics Do?
      • Home-Brew Probiotics
    • Water & Watering
      • General Recommendations for Feeding and Watering Orchids
      • Watering Strategy
      • Your Water Supply
      • Water Supplies
      • “Water Your Orchids”
      • Water Purification
      • Reverse Osmosis Process & Systems
        • Why First Rays Uses RO Water
        • Reverse Osmosis Basics
        • "Reverse Osmosis" Article
        • Sizing a Reverse Osmosis System
        • RO Temperature Pressure Effects
        • RO System Maintenance
        • Quick Connect Fittings
        • Upgrading System Capacity
        • Reverse Osmosis Water Conservation Strategies
        • Rev Up Your Plants
        • How Watering Works
      • Water Does Not Cause Root Rot
    • Measurement, Handling & Application
      • How to Feed Your Plants
      • Feeding by Mass
      • Plant Feeding Regimen
      • Fertilizer PPM Calculator
      • The Ideal Fertilizer Concentration
      • Nitrogen Management Calculator
      • Simplified Fertilizer Dosing Guide
      • Measuring Powders & Liquids
      • Dealing with Fertilizer Powders
      • Making a Fertilizer Concentrate
      • Don't Trust Your TDS Meter
      • TDS & EC
      • Electrical Conductivity Meters
      • Simple TDS Meter Calibration
      • Using Proportioners
      • Simple Fertilizer Dispenser
    • A Regimen for Growing Excellent Plants
    • The Benefit of the “First Rays Regimen”
  • Potting, Mounting & Displaying
    • How to Pot Up Plants
    • Choosing Potting Media
    • Choosing a Container for your Orchid
    • Particle Packing
    • Water Holding Capacity of Potting Media
    • Flower Pot Drainage
    • Avoiding Repotting Woes
    • Transplant “Adaptation”
    • Residues in Potting Media
      • Mineral Buildup in Potting Media
      • Mineral Buildup in Inorganic Media
      • Flushing Potting Media
    • Sphagnum Moss – Friend or Foe?
    • Rock Wool Potting Medium
    • Pot-Bound Orchids
    • How Roots Grow
    • Dealing with Aerial Roots
    • “Extended Moisture” Mounting
    • Root Rot – Causes & Cures
    • Do-It-Yourself Pot Clips
    • Stabilizing Pots
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    • Space-Saving Plant Rack
  • Pests & Ailments
    • Common Pests
      • Aphids
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      • Mealy Bugs
      • Scale
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      • Thrips
    • Pesticide Selection Guide
    • Biological Controls of Orchid Pests
    • Home Remedies
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    • Bud Blast
    • Root Rot – Causes & Cures
    • Rescue Plants with No Roots
    • Additional Guide to Pests, Diseases
    • Commercial Pesticide Guide
  • Semi-Hydroponics
    • General Concepts
      • Semi-Hydroponics™ Basics
      • The “Dry Line”
      • Transplant “Adaptation”
      • Roots & Culture (Yes, they’re connected)
      • Will it Grow in Semi-Hydroponics™?
      • “I Can’t Grow in Semi-Hydro!”
      • Objections to Semi-Hydro Culture
      • Water-Saving, Simple Hydroponics Setup
      • An Unsolicited Testimonial
      • “No Longer A Killer” AOS Article by Charles Rhodes
    • Detailed Inofrmation
      • Preparing Media for Use
      • Presoaking Inert Media
      • Repotting into S/H from Traditional Media
      • Evaporative Cooling from Potting Media
      • Evaporation Reducing Barrier
      • Bottom Heat
      • Inert Media Comparison
      • Inert Media Comparison 2020
  • Miscellaneous
    • Nomenclature
    • Register Your Hybrid
    • Labels & Faded Label Recovery
    • How to Pack Plants for Shipping
    • Cutting the Flower Spike
    • DIY Photo Background Rack
    • Vent Screens
    • Tray Drains
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Home » Nutrients/Additives/Pesticides

Nutrients/Additives/Pesticides

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  • Sale!

    “Optimal Growth” Package Deal

    $75.00 $71.00
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  • Sale!

    KelpMax Superior Plant Growth Stimulant

    $35.00 – $220.00
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  • K-Lite Orchid and Epiphyte Fertilizer

    $23.00 – $130.00
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  • Quantum-Total Plant Probiotic – 1 Quart

    $25.00
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  • Osmocote Pro Controlled-Release Fertilizer – 2 Lb

    $20.00
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  • Acephate 97UP – 1 Lb

    $24.00
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  • CONSERVE Naturalyte Insect Control

    $14.00
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  • Liquid Copper Fungicide/Bactericide

    $17.00
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  • Thiomyl Systemic Fungicide – 6 ounces

    $21.50
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  • Garden Friendly Fungicide

    $21.00
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  • Southern Ag Brush Killer – 1 Pint

    $17.00
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