SNS 203

Check pricing on

Sierra Natural Science SNS 203 is a concentrated natural pesticide used as a soil drench or foliar spray to kill and repel fungus gnats, root aphids, thrips and whiteflies. Made from 100% pure food grade materials… so, it protects your crops without harming your DNA!

• Ideal for use on a wide variety of crops, even trees!
• May be applied to soil or sprayed directly on plants
• Will NOT harm delicate new growth, clones or cuttings
• Made from food-grade botanical extracts
• Completely biodegradable and non-toxic

Available in pint (16 oz) and gallon (128 oz) sizes. ASK ABOUT BULK SIZES!

Active Ingredient:
Clove Oil ….. 1.5%
Rosemary Oil ….. 0.53%
Polyglyceryl Oleate ….. 0.6%
Lauric Acid ….. 0.11%

Inert Ingredients ….. 97.26%

Pest & Disease Application Guide – PDF
Material Safety Data Sheet (MSDS) – PDF


Drench: Mix 2 to 4 oz SNS 203 per gallon of water to make a ready-to-use solution. Thoroughly drench affected and surrounding areas.

Spray: Mix 2 to 6 oz (4-12 Tbsp) per gallon of water. Spray foliage to the point of runoff. Repeat 2-3 times, as needed. Do NOT spray on buds or flowers.

Hydroponics: If you can, remove plant from the system and place in a 5-gallon bucket. Pour solution over top of the root system and drain into the bucket. Let sit for 5-10 minutes, rinse with water and return plant to the system. Apply 2-5 times every 2-3 days as needed, depending upon pest infestation.

Affiliate Disclosure: As an Amazon Associate we earn from qualifying purchases. Some links may be affiliate links. We may get paid if you buy something or take an action after clicking one of these links.