One application is normally enough to last one fungus gnat season, but if the problem persists use a second application. Adult fungus gnats do not damage plants; however, they can vector diseases like Pythium, Fusarium and Verticilium. Infective juveniles of Heterorhabditis spp also enter through the intersegmental members of the maggot/pupal cuticle.

It is best to use some of our yellow sticky traps in combination with your nematode treatment to prevent the build up of a large infestation. These nematodes kill both maggots (larvae) and pupae, but the second and fourth stages are most susceptible than pupae.

They can move through the soil to hunt them down, and multiply by themselves until all the larvae are dead. It is often a good idea to treat any new plants you bring in as they can already be infested upon purchase. If fungus gnats are already present, it will take 2 to 3 weeks for the adult flies to die off and for all larvae to be killed by the nematodes. All of these products are labeled as a soil drench treatment against fungus gnat larvae and all but Scanmask are labeled for thrips pupae.

Whilst the application of Beneficial Nematodes is easy, the correct handling of the product and timing of the application is critical to its success. Stenema consists of beneficial nematodes that attack the larvae of different species of sciarid flies. As long as you regularly water the soil over the 2 week treatment period as per the instructions, the nematodes will be able to travel through the soil. Water the growing media before and soon after application, but avoid over watering so they aren't washed out of the container. Due to this preference, fungus gnats are a prevalent pest in greenhouse and indoor growing settings as well as in outdoor potted plants.The Dragonfli House Plant Care Bundle combines products that boost the overall health and growth of your house plants whilst also aiding them in battles against pests and diseases. Fungus gnat flies are black or gray in color with clear wings, relatively small (3-4 mm) in size and commonly associated with compost and natural soils with high organic contents.

NemaKnights TM gives you a natural, biological control of a Fungus Gnat (adults and larvae) Thrips Control, Root Aphid and larval soil pests in containers and gardens indoor and outdoor. Andermatt's sticky traps use a double combination of bright yellow card and black line patterns to really attract the gnats. Nematodes therefore offer an easy solution to force ants to move their nests and get rid of the source.You can apply using a watering can with a course rose head or use a hose end applicator for larger areas. The fungus gnat belongs to the family Sciaridae and is a common pest in flowers, house plants and herb pots. WHAT WILL HAPPEN TO THE EFFECTIVENESS OF THE BENEFICIAL NEMATODES IF THE WATER SOURCE AVAILABLE IS TOO COLD OR NIGHTS HAVE BEEN GETTING COLD, OR THE DAYS TOO HOT?

I bought some killer spray that explicitly said to use it on the leaves and so I ignored that advice and sprayed a little on the soil (of all my plants) out of frustration. The bacteria kills the host within hours, and the nematodes grow and reproduce within the 'broth', which they produce.Application rate and timing, potting medium and host plant on the efficacy of Steinernema feltiae against the fungus gnat, Bradysia coprophila, in floriculture. The eggs hatch within three to six days, depending on the temperature, and will then go through four larval instars. Place the stand holder into the soil in a pot, keeping the sticky card a few centimetres above the ground.