Sell

How to use Gnatrol® WDG to control Fungus Gnats around your fig trees


Gnatrol® is a highly selective, biological larvicide used to control fungus gnat larvae. It may be used on a wide variety of ornamentals, as well as all bulb crops, bedding plants and vegetable sets. Once the larvae have ingested Gnatrol, they become paralyzed, stop feeding immediately and die—usually within 24 hours. Gnatrol is easy to use and OMRI-listed for organic production.

Safety

Gnatrol WDG is non-toxic and very safe to apply around humans and pets. Please use common sense and take reasonable safety measures when applying this product:

  • Keep out of reach of children
  • Avoid breathing dust
  • Avoid contact with eyes
  • Wear PPE when applying
  • Wash hands thoroughly after using
  • Do not contaminate food or drinking water

Application Rate

Please be aware that most of the suggested application rates are lower than recommended by the manufacturer. The stated rates have been determined to be effective for fig growers and based on actual usage. Your own setup may be different. Please use common sense and vary accordingly. Gnatrol WDG contains Bti. Bti does not reproduce or persist indoors, so infestations in potting media will require repeated applications to provide control. Mix Gnatrol WDG with water and apply as a soil drench, or spray onto media using a hand-pump spray bottle or other spray equipment:

For smaller setups, home use, and rooting indoors, mix Gnatrol WDG as follows:

  • For a light infestation use 1/2 tsp per gallon of water.
  • For a medium infestation use 1 tsp per gallon of water.
  • For a heavy infestation use 3 tsp per gallon of water.
  • For maintenance use 1/4 tsp per gallon of water.

For larger setups, greenhouses, & commercial applications, mix Gnatrol WDG as follows:

Apply Gnatrol WDG with adequate water above and under benches where larvae are found. Areas under benches should be treated at high rates as this is one of the primary breeding areas. Reapply as needed. Regular follow-up applications using the suggested light infestation rates will establish a long-term maintenance program.

  • Light infestation, 3.2 to 6.4 oz/100 gallons applied as a soil drench
  • Heavy infestation, 13 to 26 oz/100 gallons applied as a soil drench

Application Procedure

Always work Gnatrol WDG into your scheduled watering program and not in addition to it. Apply Gnatrol WDG with adequate water by soil drench to sufficiently wet the soil surface above, or spray onto media using a hand-pump spray bottle or other spray equipment. Do not use spray equipment in the home. DO NOT APPLY GNATROL WDG IN ADDITION TO YOUR REGULARLY SCHEDULED WATERING.

  • For actively growing, well-established, indoor overwintered, and adult fig trees only, make 2 weekly applications in the suggested range rate for heavy infestations.
  • For newly established and young plants, every 7 days for any level of infestation.
  • For newly rooted fig cuttings only as needed. If you have to make the choice of overwatering a rooted cutting with Gnatrol WDG or not treating it, don't treat it. Once Gnatrol WDG is worked into your watering schedule the overall health of your entire setup will improve and you'll be able to treat the few that may have been overwatered into the Gnatrol WDG regimen. Please have patience.

Use Yellow Sticky Traps to help gauge your level of infestation. After the initial infestation has subsided, regular follow-up applications using the suggested light infestation rate will establish a long-term maintenance program. Gnatrol WDG should not be injected in combination with fertilizers or fungicides containing copper or chlorine as this may neutralize the active ingredients. (Chlorine levels in potable water supplies should not present a problem with Gnatrol WDG performance). DO NOT apply soil drenches to plants under stress or follow applications with excessive amounts of water.