Although it’s not the easiest method, migrating the earthworms first before harvesting is one of the cleanest method to use when harvesting vermicompost. Once the worms detect another source of food, they will abandon the pile with no food left and move to the pile with the new food.
This works similar to the stackable tray method. The method is simple: Add new food to move the earthworms from the current pile they’re in to another pile. Move the old bedding to one side of the bin and add the new bedding and food to the other side of the bin.
Another technique is to construct a new enclosure next to the one with the harvest-ready compost in a way that the two enclosures are butted up to each other with a way for the worms to move from one to the other. The new enclosure should be filled with new and fresh vermicomposting bedding and food.
Once the worms moved to the new bin and the old one is free of worms, it is easier to harvest the vermicompost using a trowel.
Once you have your vermicompost, you can use it in many different ways! It can be used both indoors and out as a natural fertilizer for your plants, vegetables, grass, or trees. Since it’s richer than other compost, a little goes a very long way.
Your vermicompost is also good in making liquid fertilizer. Not only does it provide more nutrients to your garden, it also suppresses leaf diseases and repels bugs, when sprayed directly onto the leaves.
To make a liquid fertilizer with your vermicompost, you can use an
aerator to aerate the tea. A simpler, also effective, method is to use a paper coffee filter and add about a quarter cup of you worm castings and tie the coffee filter up tightly with twine to hold the castings in. Add your “tea bag” to 1 gallon of water and let it “steep” overnight, don’t heat it up, just let it sit. You can stir it if you want to aerate it a bit over the time it sits, but, it’s not a deal breaker, if you don’t.
You can use your “worm tea” as a fertilizer, once a week, or as a foliar spray to nourish and protect the foliage, or just to water your plants – it won’t hurt them just don’t over-water them.
Which harvesting method do you think you prefer?
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