Root Cleaner by Central Coast Garden — Natural Soil Drench for Fungus Gnats, Root Aphids & Pythium
CCG-IPM-DRENCH-236ML
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Pairs well with
Root Cleaner is a natural soil drench from Central Coast Garden that targets the pests foliar sprays can't reach — fungus gnats and their larvae, root aphids, thrips, Pythium, Rhizoctonia and harmful nematodes. It works by dehydrating and suffocating pests and fungi in the rhizosphere, disrupting feeding and reproduction without harming plants when used correctly. Safe for soil, coco, and hydroponic systems. 0-hour re-entry, 0-day pre-harvest interval. The below-soil partner to Green Cleaner — together they cover the full garden from root tip to canopy.
Specifications
- Shake hard before measuring. Concentrate settles fast.
- Mix with water only. No nutrients, no beneficials, no other pesticides.
- The 15-minute plain-water rinse is non-negotiable — it flushes out dead pests and brings the media back to a clean baseline.
- Re-inoculate with worm castings, compost tea, or a mycorrhizal product (Great White, Trichoderma) after rinsing. Root Cleaner is non-selective.
- For active infestations, apply twice within 7–10 days. Single-shot applications leave the egg cycle intact.
- Never leave Root Cleaner in a hydroponic reservoir. Flush the system fully within 30 minutes of application.
- Allow media to dry slightly before your next feed. Prevents waterlogging.
How to Apply
Coverage By Size
Pairs Well With
The above-soil partner. Green Cleaner handles foliar pests, Root Cleaner handles the root zone. Buy the pair for full coverage.
Propagation GearTreat clones and seedlings before they hit your main room. Stop root zone issues before they establish.
Fresh SubstratesPre-treat new coco or soil with a single drench before planting to knock down any larvae or fungal spores.
Microbial InoculantsRebuild the microbiome after rinsing. Great White, Trichoderma, worm castings, compost tea — whatever suits your system.
Frequently Asked Questions
Will Root Cleaner harm beneficial microbes?
Yes — it's non-selective and will knock back the beneficial population along with the pests. That's why the 15-minute plain-water rinse and re-inoculation step matter. Rebuild the microbiome after treatment with worm castings, compost tea, or a mycorrhizal product like Great White.
Can I use it in hydroponic systems?
Yes. Apply the solution over each plant's root zone and let it drain through the system, then flush the whole system with plain water within 30 minutes. Never leave Root Cleaner sitting in the reservoir — it'll damage roots and disrupt beneficials if left in contact.
Does it work on root aphids?
Yes. Root aphids are one of its primary targets. Apply two drenches 7–10 days apart to hit both the adult population and newly hatched nymphs — single applications leave the egg cycle intact.
Is it safe for use during flowering?
Yes. 0-day pre-harvest interval means you can drench right up to harvest day. Most growers stop routine preventative drenches in early flower and only treat late flower if there's active pest pressure.
Can I mix it with nutrients or beneficial microbes?
No. Mix with water only. Combining Root Cleaner with nutrients, foliar feeds, beneficials, or other pesticides causes ingredient interactions and can damage roots. Space other drenches 24–48 hours apart from any Root Cleaner application.
How is this different from Green Cleaner?
Green Cleaner is a foliar spray for above-soil pests — spider mites, aphids, thrips, whiteflies, powdery mildew. Root Cleaner is a drench for below-soil pests — fungus gnats, root aphids, Pythium, Rhizoctonia. Same brand, same physical mode of action, different application zone. Most serious growers run both.
Will it control nematodes?
Yes — but only the harmful ones that attack roots or carry plant viruses. Beneficial nematodes in soil will also be affected, which is another reason to re-inoculate after treatment to restore a balanced biology.
Do I need to apply more often during warmer months?
Yes. Warm humid conditions let fungus gnats and thrips reproduce faster. Tighten your schedule from a 30–45 day preventative cycle down to every 14 days during peak pressure or after heavy rain events.
Which size should I buy?
Match bottle size to garden load. The 236 mL (makes 29 L of drench) covers most home grows through a full cycle with routine prevention. Step up to the 946 mL (118 L) for multi-tent setups or active infestations that need multiple passes. The 3.78 L (472 L) is built for commercial operators, nurseries, and serious multi-room growers — best per-mL value.
Select Size
236 mL = 29 L drench · 946 mL = 118 L · 3.78 L = 472 L
Kill Root Pests. Protect Your Microbiome.
Natural soil drench for fungus gnats, root aphids, Pythium and more. Safe clone to harvest. Free shipping over $499*.