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Brand: Sierra Natural Science

Sierra Natural Science 244 Natural Fungicide RTU

Sierra Natural Science 244 Natural Fungicide RTU

SKU: SKU:SN24432OZ

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SNS 244 RTU is a thyme oil fungicide that sprays straight from the bottle, no mixing. It works on fusarium, leaf rust, powdery mildew and black mold, and stays safe right through harvest day.

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SNS 244 Natural Fungicide RTU Sprays Straight From the Bottle

This is the one you grab when something is already spreading and there's no time to mix. SNS 244 RTU runs on thyme oil at 4.00%, carried by water, cod liver oil, polyglyceryl oleate and lauric acid. The thyme works on the spore stage of fusarium, leaf rust, mildew and black mold rather than just coating the leaf. It's 25(b) exempt and food-grade, which is why it clears use up to the day you cut.

A Natural Fungicide for Indoor Plants, Timed for Lights-Off

Spray every two to three days until the outbreak is under control, wetting the infested tissue thoroughly. Timing matters more than most growers expect here. Go at night or lights-off with the canopy fully cooled, because thyme oil on a hot leaf under high-intensity light is how you get burn. It tank mixes with SNS 217 when insects turn up in the same week. One honest limit: unlike the 244C concentrate, this one is not OMRI listed, so certified-organic operations should check the concentrate instead.

Key Features

  • Thyme Oil at 4.00%: The single active, carried by cod liver oil, polyglyceryl oleate and lauric acid at 0.85% combined.
  • No Mixing, No Measuring: It ships at spray strength, so there's no 16 oz per gallon step and no leftover diluted solution to discard.
  • Fusarium to Black Mold: One bottle covers fusarium, leaf rust, powdery mildew and black mold instead of a pathogen-specific product each.
  • Safe to Harvest Day: FIFRA 25(b) exempt and food-grade, so it stays usable in late flower when most rotations run out of options.
  • Pairs With SNS 217: The two tank mix, which keeps a fungal outbreak and an insect flare on the same spray schedule.

Technical Specifications

Specification Value
Product Type Ready-to-use botanical fungicide (no dilution)
Active Ingredient Thyme Oil 4.00%
Other Ingredients 96.00% — water, cod liver oil, polyglyceryl oleate, lauric acid
Target Pathogens Fusarium, leaf rust, powdery mildew, black mold
Application Foliar spray, undiluted; wet infested areas thoroughly
Frequency Every 2–3 days until under control
Timing At night or lights-off, canopy fully cooled
Pre-Harvest Interval Safe up to day of harvest when used as directed
Regulatory Status FIFRA 25(b) exempt — not OMRI listed
Tank Compatibility Mixes with SNS 217
Sizes 32 oz, 5 Gallon