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Gnat Guard

Specifications at a Glance:

  • Tiny sponge containing naturally-occurring microorganisms (beneficial nematodes)
  • This product needs to be either refrigerated or applied upon receipt Gardener's Supply Exclusive

Product Instructions

More Information:

Gnat Guard

Place Your Order Here

Gnat Guard - Item #34-299

$16.95
Qty.   

Destroy Gnat Larvae Before They Harm Plant Roots

Those little black flying insects that hover over your houseplants are not just a nuisance. They're destructive fungus gnats, which live in soil and produce hungry larvae that devour plant roots. Gnat Guard to the rescue! A single application of this biological control (naturally-occurring beneficial nematodes) gives your plants permanent protection against gnats and thrips.

  • Just one application provides permanent protection!
  • Makes 1 gallon of concentrate, enough for all your plants
  • Easy to use — mix with water and spray on soil
  • Safe for people, animals and the environment
  • Shipping by growing zone begins in late February
  • Sorry, no shipments to AK,HI,PR,VI,AP
  • Faster shipping is not available for this item.
  • Please provide a physical street address for delivery.
  • Would you like to specify a delivery week? Call us at 1-888-833-1412 to place your order!

REVIEW SNAPSHOT®

by PowerReviews
Gnat Guard
 
3.2

(based on 49 reviews)

63%

of respondents would recommend this to a friend.

Pros

  • Easy to apply (34)
  • Eco-friendly (34)
  • Effective (29)
  • Organic (24)
  • Safe (24)

Cons

  • Inefficient (9)

Best Uses

  • Bugs & insects (34)
    • Reviewer Profile:
    • Avid gardener (37), Getting started (7)

REVIEWS

Reviewed by 49 customers

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Displaying reviews 1-10

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1.0

Unsure

By SH

from Montpelier

Verified Buyer

Pros

    Cons

      Best Uses

        Comments about Gnat Guard:

        The product took much longer to arrive than the customer service representative led me to believe. When it did arrive, the cold pack that accompanied the product was completely thawed. I can't be sure, but I have the suspicion I spent [$] for nothing.

        • Primary use:
        • Personal
         
        3.0

        give it time to work

        By retired teacher

        from Idaho

        About Me Avid Gardener

        Verified Buyer

        Pros

        • Eco-Friendly
        • Organic
        • Safe

        Cons

          Best Uses

          • Bugs & Insects

          Comments about Gnat Guard:

          I wasn't sure the gnat guard was still alive when it arrived. Maybe ordering it in the spring might be more productive. Used in combination with insect spray and the bugs seemed to have decreased.

           
          2.0

          Goodbye Gnats?

          By Belle loving gardening, birds

          from Charlotte, NC

          About Me Avid Gardener

          Verified Buyer

          Pros

          • Clean
          • Easy To Use
          • Eco-Friendly
          • Natural
          • Organic
          • Safe

          Cons

          • Didnt work this year

          Best Uses

            Comments about Gnat Guard:

            This is the third year I have ordered Gnat Guard from Gardener's Supply. It worked very well the first 2 years and is the only thing I have found that does kill fungus gnats for a whole season. It was easy to use, clean, safe, and natural. [...].Since I applied the gnat guard, there has been no effect whatsoever on the gnats. I have many plants in pots and planters, so I ordered 3 packages of Gnat Guard. As you can imagine, I was very disappointed

             
            1.0

            Didn't work

            By Val

            from Colorado

            About Me Avid Gardener

            Pros

            • Easy To Use
            • Organic

            Cons

            • Inefficient

            Best Uses

            • Bugs & Insects

            Comments about Gnat Guard:

            Applied the nematodes the day I received them. Haven't seen any reduction in the gnat population in the last few weeks. [...] Maybe nematodes died in transit? Felt it was a waste of money.

             
            4.0

            Seems to be working well.

            By Swamp Angel

            from Oklahoma

            About Me Avid Gardener

            Verified Buyer

            Pros

            • Easy to Apply
            • Eco-Friendly
            • Effective
            • Long Lasting
            • Organic
            • Safe

            Cons

              Best Uses

              • Bugs & Insects

              Comments about Gnat Guard:

              I tried this several years ago and it worked really well. Then the fungus gnats returned this last year and I decided to purchase again as am sure it doesn't last forever. It seems to have been very effective again. Will see how long it lasts this time. I do like the fact that it is not a pesticide

               
              5.0

              Gnat Guard review

              By Love to garden

              from Lehi, UT

              About Me Avid Gardener

              Verified Buyer

              Pros

              • Easy to Apply
              • Eco-Friendly
              • Effective
              • Safe

              Cons

                Best Uses

                • Bugs & Insects

                Comments about Gnat Guard:

                This was sooo easy to use - just follow the instructions. I am growing a lemon tree indoors & this sure helps keep the gnats under control.

                 
                4.0

                Worked like a charm!

                By Carol

                from Springfield, MO

                About Me Avid Gardener

                Verified Buyer

                Pros

                • Easy to Apply
                • Effective

                Cons

                  Best Uses

                    Comments about Gnat Guard:

                    Pricey, but it got rid of the gnats quickly and saved my living wreath. Makes a lot, so plan on treating/watering multiple plants.

                     
                    1.0

                    Didn't do the job

                    By Tealady

                    from Bethany, CT

                    About Me Getting Started

                    Verified Buyer

                    Pros

                    • Easy to Apply

                    Cons

                    • Inefficient

                    Best Uses

                      Comments about Gnat Guard:

                      I found it easy to mix/use. I followed directions exactly, but saw no decrease in the gnats. Due to the high cost, I didn't want to try it again.

                       
                      5.0

                      gnats begone

                      By sarah

                      from massachusetts

                      About Me Avid Gardener

                      Verified Buyer

                      Pros

                      • Effective

                      Cons

                        Best Uses

                          Comments about Gnat Guard:

                          I had never before used this product and mixing was a challenge. After the fear of not mixing had passed the product works wonders. This product makes a huge difference in plants I have brought in for the winter months. Thank you. I will purchase this product again next year.

                           
                          4.0

                          Terrific Product!

                          By Tracy

                          from Minneapolis, MN

                          About Me Avid Gardener

                          Verified Buyer

                          Pros

                          • Easy to Apply
                          • Eco-Friendly
                          • Effective
                          • Long Lasting
                          • Organic
                          • Safe

                          Cons

                            Best Uses

                              Comments about Gnat Guard:

                              I found this product to be extremely effective in controlling persistent fungal gnats occurring in my indoor container garden. After trying several organic products with little success, the Gnat Guard was extremely effective. If necessary, I would definitely order this product again.

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