BIOLOGICAL PEST CONTROL IN MUSHROOM GROWING
The biggest pests in mushroom cultivation are fungus gnats and phorid flies. These two species can be controlled biologically and effectively with nematodes.
CONTROL FUNGUS GNATS WITH NEMYCEL®
Fungus gnats feed on compost and prefer unsprayed compost to compost colonized by Agaricus mycelium. The adult flies are attracted to the volatile components of the compost, so it can be infested any time after pasteurization when it is cool. The adult flies are 3 - 4 mm long and can be distinguished from other fungal pests by their long antennae.
Our nematode product nemycel® contains nematodes of the species Steinernema feltiae, which is specialized in controlling Sciarid larvae. After application, the nematodes penetrate the larva through body orifices and release a symbiotic bacterium. The bacteria multiply in the larva and kill it within a few hours.
Easy application of nemycel®
Mix the nematode powder in a water barrel and pour it evenly over the compost using the sprinkler system or by hand. Alternatively, the nematodes can be poured onto or mixed into the substrate when filling the tanks. The nematodes are most effective when the water content in the substrate soil is 60-70%.
Dosage recommendation for Phase II and Phase III composts
The general dosage recommendation is 2 million nematodes per m² applied in 1 liter of water per m². Two strategies can be used for effective application, divided into a single application and a split application.
Single application: 2 million / m² at the last irrigation or on day 12-14.
Split application: 1 million / m² immediately after application and 1 million / m² at the last irrigation.
ADVANTAGES OF NEMYCEL®
80% of larvae in compost can be killed by the application of Nemycel. For best results, simply dissolve Nemycel in water and feed into the irrigation system
The nematodes in nemycel are infective dauer larvae. At this particular stage, they can be combined with many active ingredients, whether biological or chemical.
Our product philosophy is 100% organic. We do not use any chemical additives in our formulation and therefore our production complies with FiBL and OMRI requirements.
Because of our philosophy, we do not use any type of microplastic. Instead, our formulation is based on natural diatomaceous earth, which has the advantage of dissolving easily in water and not clogging the irrigation system.
nemycel® product video
CONTROL PHORID FLIES WITH NEMATODES
Phorid larvae (Megaselia halterata) feed on the mycelium, so the adult flies are not attracted to the compost until after they have been pecked to lay eggs. The larvae are white, 1 to 6 mm long, stubby at one end and pointed at the other. They feed on the growing fungal mycelium, but rarely on the fruiting bodies themselves. They can be distinguished from sciarid larvae by the absence of the black head and develop more rapidly into a pupa. Adult phorids act as a vector for dry bubble (Verticillium fungicola). 75 flies per sqm (7 per sq ft) may already cause an outbreak of this disease.
Phorid larvae can be effectively controlled with the nematode product nemycel® phorid fly.
At the time of application, phorid larvae or adults should be present in the compost so that the nematodes can multiply in the insects. The nematodes are effective at compost temperatures up to 30°C (86°F). At higher temperatures, nematode effectiveness decreases. Nematodes work best in substrates with a water content of 70%.
nemycel® Phorid fly dissolves in water to form a suspension that can be easily applied to plants. All screens must be removed. Use nozzles with a diameter of at least 0.8 mm. The pressure should not exceed 5 bar (80 psi).
1.6 million nematodes per m2 (150 million per 1,000 sq ft) at spore application or immediately thereafter. No later than the second day, nemycel® Phorid Fly should be applied. Repeat application with first irrigation at first bloom 18 - 20 days after application.
nemycel® phorid fly can be mixed in the tank with SporGon or Vivando.
Sodium hypochlorite at a concentration of 0.05% has no effect.
Chlorine up to 50 mg per liter of water has no effect.
Hydrogen peroxide should be applied 3 days before or after Nemycel application.