5.2 What worm species can be considered for vermicomposting?

Over 4,400 distinct species of earthworms have been identified and named by researchers. Different earthworm species have varying preferences and tolerances to environmental conditions. Not all of these are useful for vermicomposting. The most familiar worms are soil-dwelling worms, and their primary job is soil aeration. If you dig a hole in a garden and find a large worm, it is most likely a soil-dweller. Soil worms eat soil minerals and some organic matter in the soil or on its surface. Soil worms require soil to survive and cannot be used for vermicomposting.

The most common types of earthworms used for vermicomposting are brandling worms (Eisenia foetida) and redworms or red wigglers (Lumbricus rubellus). Often found in aged manure piles, they generally have alternating red and buff-coloured stripes.

The following pictures visualize the worm species that can be utilised for worm composting:

• Eisenia foetida (Redworm, Hybrid Redworm, Tiger Worm, Dung Worm)

• Lumbricus rubellus (Red Manure Worm, Red Wiggler Worm)

• Lumbricus terrestris (Nightcrawler)

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