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Vermiculture is worm farming.

Key topics are:

  1. Worm types
  2. Worm properties/actions
  3. Worm breeding
  4. Worm farming
  5. Vermicast
  6. Vermicast leachate
  7. Vermicast solution (Worm tea)

Vermiculture is the study of using particular species of worm adapted to eating the bacteria found in composting organic matter and which, in turn, nurturing the environment to foster growth of such bacteria such that the breakdown process of organic material occurs more quickly and produces a particularly rich output - vermicast (worm poo).

Worm farming involves controlled optimisation of conditions suited to the decomposition of organic matter and to the life and reproduction of compost worms. Worms turn organic matter into worm poo (vermicast) which is a thick, dark, rich, friable, moist, good bacteria rich, living, all-round organic material which can be used to make vermicast solution (worm tea), an organic fertiliser and pesticide, and vermicast can be mixed into potting mixes and the soil to introduce organic matter and healthy bacteria into soil. Leachate is also produced during worm farming which can also be used productively in gardening (if diluted ~10:1), however experts warn that not only is leachate an inferior product compared to vermicast solution (wormcast tea), but it also may harmful bacteria from decomposing organic matter (rather than only that derived from only vermicast as for vermiculture solution), and thus may contain harmful bacteria and pathogens that shouldn't be applied particularly to leafy foliage of vegetables to be eaten soon afterwards.


The best source of information I've found so far is in this book: Murphy, D. (2005). Organic growing with worms: A handbook for a better environment. Penguin Group (Australia). Camberwell, Victoria.

Specifically with regard to vermiculture tea, see this pdf handout and this pdf newsletter and for some more worm cast compost tea recipes see compost tea recipes.

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