Vermiwash
A drum, barrel or bucket can be used for making vermiwash. The drum or bucket should be placed on supports a little above the ground. A hole should be made at the bottom of the container. A pipe should be pushed through the hole and a tap attached to the outer end.
The bottom of the drum should be covered with a layer of gravel (about 6-8 inches). Over it, a layer of sand (6-8 inches), and then a layer of soil (6-8 inches) should be spread. The earthworms should then be introduced and the soil moistened a little. Then a little bit of cowdung and hay should be mixed together and scattered over it. This should be left for a few days.
Whenever vermiwash is needed, water should be sprinkled with a shower or, gradually poured on top of it (5 litres of water for a 150 litres drum). The water will pass through the earthworm burrows and the organically rich soil will become liquid manure and can be collected at the bottom of the container. As the hay and cowdung is eaten up by the earthworms, this should gradually be replaced.
Conclusion
In nature, litter is decomposed in a way similar to what happens in a vermicompost pit. Litter (consisting of leaf material, twigs, bark, dead wood, flowers, fruits and other plant and animal material) that falls on the ground is constantly moistened by dew or rain. Decomposition then sets in with the help of microbes, fungi and microarthropods.
Microarthropods are of two kinds-the detritivores that feed on the litter attacked by the microbes and fungi and the predators that feed on the detritivores. The litter that has not been decomposed, dead microbes and microarthropods, along with their excretions and secretions, mix and form humus. This humus is in a complex form and therefore not available to the plants for use. Here is where earthworms come into the picture. The earthworms present in the soil feed on the humus. The castings (wormicasts) excreted by these earthworms, as a result, contain nutrients in a form that is readily available to the plants for their growth. The plants in turn, when they die or shed leaves, contribute to the litter which becomes food for microbes and fungi. Thus nature's cycle is made whole and complete.
Earthworms have proven that they are wonderful creatures for they can truly turn garbage into gold.
Chapter 9: Spiders
My stint with vermiculture over, I had another fortnight of study with Dr K. Vijayalakshmi, whom my dad calls India's `Spider Woman'. Dr Vijayalakshmi has been doing research on rearing spiders as a biological weapon for controlling cockroaches and her workplace is full of spiders of various types, all in bottles, and bred under her supervision. An authority on spiders, she is also the author of a well-known book on the subject.