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Gnatrol WDG Biological Larvicide by Valent - 8 oz package - 100% Organic Refresh

FREE SHIPPING - Get rid of pesky fungus gnats for good! - FREE SHIPPING

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Price $29.99 Per Item ( )
Quantity 212 Available / 87 Sold

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5-Star Feedback: 100%
Located in: Jupiter, FL
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Please click the 'Buy it Now' or 'Bid' button once. Multiple clicks may result in multiple purchases. Pay directly from the listing or invoice. We ship on Tue, Wed, and Thu. Thank you for purchasing! :)


This is an eight-ounce (8 oz.) package of Gnatrol® WDG (Water Dispersible Granule) biological larvicide.  Gnatrol® WDG kills fungus gnat and mosquito larvae and effectively controls infestations when used on almost any ornamental, bulb crop, bedding plant, and edible.  Gnatrol® WDG is OMRI Listed® and allowed for use in certified organic operations under the USDA National Organic Program.  Shipped FREE via USPS First Class shipping.

The new granular Gnatrol WDG biological larvicide offers effective control of fungus gnat larvae with added product benefits over the old liquid formula:

  • Shelf-life increased to 2 years. (The liquid formulation was only 1 year)
  • Granular form is more concentrated which means more product in less packaging with lower shipping cost and less waste.
  • New granular form is easier to measure so application accuracy is greatly increased.
  • The granular form doesn't leave a residue like the liquid formulation.
  • Can be used on ornamentals and nursery plantings in greenhouses or potting soil mixtures.
  • Safe for vegetables such as tomatoes, leafy and Cole crops, cucumbers, peppers, and eggplants, melons, bulb crops, bedding plants, and a wide variety of fruits and ornamentals.
  • Fungus gnats larvae stop feeding almost immediately after the product is digested.  Death occurs 24 to 48 hours later breaking the vicious fungus gnat cycle.
  • New granular form is OMRI listed.
  • Gnatrol WDG is a biological control for fungus gnat larvae. It contains a variety of bacillus thuringiensis bacteria that kills most gnat larvae. Apply as a soil drench or add to the nutrient solution of your growing system. Does not kill adult fungus gnats, but once the larvae is killed, the adults will quickly die off.
  • Can be used up to the day of harvest on all edible plants.

Don't let fungus gnats infest your setup.  Be proactive; clean and disinfect your entire grow area with hot water and soap right now.  That includes walls, floors, shelves (underneath, too), etc.  Thoroughly clean and disinfect all your grow equipment and pots.  Putting a small amount of time into your setup now is much easier than fighting an infestation of fungus gnats during the rooting season.  Have a fungus gnat management plan ready before starting and always include Gnatrol® WDG (water-dispersible granules) as the first line of defense.  Gnatrol WDG is a natural biological control agent containing the Bacillus thuringiensis israelensis (Bti) strain of bacteria that kills fungus gnat larvae.  Use Gnatrol WDG anywhere you grow including the home and greenhouses.  Gnatrol WDG is safe to use around people and pets.  

Shipping and Combined Shipping

NYCfigs ships on Tuesdays, Wednesdays, and Thursdays.

We never 'pass the savings' of expensive shipping charges to the customer and always ship as economically as possible.  Sometimes this becomes a juggling act between cost-of-goods vs. cost-of-container vs. shipment size vs. shipping cost vs. margins.  With combined shipping, it's all in the packing and we'll always find the most inexpensive shipping method available.  But there are times when it's impossible to ship economically and we'll always let you know before paying.  The shipping for all items sold by NYCfigs will combine automatically with all other items purchased from NYCfigs.  Items that ship free can't be discounted.  In the rare instance of excess shipping charges, NYCfigs will refund after the invoice is paid.  This ensures your items are received in a timely manner.


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Return Policy
NYCfigs has a rock solid return policy. In the rare instance that you are not satisfied, please let us know immediately and we'll make it right with a refund or exchange. Please understand that NYCfigs will do our best to correct shipping delays and lost packages but those issues are out of our control.