Sierra Natural Science 203 Pesticide Concentrate, 5 Gallons

★★★★★ 4.5 126 reviews

$214.02
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$214.02
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Free shipping Free 30-day returns

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Product details

Management number 232635325 Release Date 2026/06/21 List Price $74.91 Model Number 232635325
Category

Sierra Natural Science 203 Concentrate repels and kills Root Aphids, Fungus Gnat, White Flies, Gnat Larvae, Thrips & more.


Benefits of using our SNS 203 Soil Drench/Foliar Spray

  • Kills pests and attacks fungus & algae
  • Safe up to day of harvest when used as directed
  • Safe around children & pets when used as directed
  • Use as Root pesticides

Pests our Soil Drench/Foliar Spray repels & kills

  • Root Aphids
  • Fungus Gnat
  • White Flies
  • Gnat Larvae
  • Thrips & more

How our soil drench insecticide works

  • High moisture levels in soils and around pots encourage the development of fungus gnats, root aphids, shore flies and other pests. When this occurs, plants will be stunted with reduced growth and leaf drop. 203 has active ingredients that cause pests to dehydrate and die while also, attacking fungus and algae, reducing the food source for pests.
  • 203 is made up of 100% pure rosemary & clove botanical extracts highly water soluble. We process raw certified organic botanicals and herbs in-house. The botanical extracts are all food-grade GRAS (generally recognized as safe when used as directed) materials, that are fully biodegradable, and not toxic to animals. It is exempt from EPA registration under minimum risk soil drench pesticide exempted under FIFRA section 25(b). It can be used on a wide variety of plants, fruits, and vegetables.

Where to Use SNS’s Soil Drench/Foliar Spray Pesticide

  • Home & Gardens
  • Hydroponics
  • Greenhouses

Mixing Compatibility

SNS 203 can be mixed with SNS-209, SNS-604A, SNS-604B

How to Mix our Soil Drench for Thrips Concentrate use

  • Root Drench: Shake well before mixing. Mix 2-4 oz. per gallon of water. Thoroughly drench affected and surrounding area.
  • Foliar Spray: Mix 2-6 oz. per gallon of water. Spray foliage to the point of runoff.
  • Hydroponics: Hydro Tray: Pour solution over roots & drain into the system. Flush system after use.
  • Bucket Drench: Soak root system in 5-gallon bucket for 5-10 minutes. Rinse, return to system.

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