Nematodes for Sciarid Fly
Also known as compost fly, Sciarid fly is a common pest of greenhouse and indoor plants. Symptoms include, large numbers of small flies crawling over the compost surface and covering young plants, whilst the larvae eat the roots.
To treat Sciarid fly apply Sciarid Fly Nematodes - mix the nematodes with water and water directly into the affected pots / trays. A standard pack of Sciarid Nematodes will treat up to 15sqm of compost while a large pack of Sciaird Nematodes will treat up to 50 sqm of compost. For smaller areas just make the solution stronger (you cannot overdose).