Temperature: Redworms tolerate a wide range of temperatures, however, the ideal temperature is between 55-77 degrees F. Bedding with a temperature above 84 degrees F. is harmful, sometimes fatal, to redworm populations. The temperature should be measured inside the box, because the temperature in the moist bedding is usually lower than the outside air.
Redworms should be protected from freezing temperatures. Temperatures below 50 degrees F. slow down worm activity.
Moisture Content: Redworms need a moist environment. Worms breathe through their skin. Skin must be moist in order to breathe.
Aeration: Redworms need oxygen to live. They produce carbon dioxide. Air circulation is a must in and around a worm bin.
Another Useful Article About Vermi-composting:
NOTE: The following information is for the home vermicomposting enthusiast. This resource is not intended to be a reference for commercial bins.
During the growing season, many gardeners compost both yard waste and kitchen waste with compost piles, sheet composting or some other method. Fortunately, very little yard waste is generated during winter months when cold temperatures make composting difficult. However, usable kitchen waste is constantly being generated and must be disposed of. Vermicomposting is the process of using worms and micro-organisms to turn kitchen waste into a black, earthy-smelling, nutrient-rich humus (worm castings)
Just get started.....
- a container
- bedding
- water
- worms
- nonfatty kitchen scraps.
What containers to use?
The ideal container depth should be between eight and twelve inches. Bins need to be shallow because the worms feed in the top layers of the bedding. A bin that is too deep is not as efficient and could potentially become an odor problem.
Worm boxes can be purchased or made. Plastic storage containers are convenient and come in a variety of sizes. These containers are easily transported and are a nice alternative to heavier wood bins. Many people choose to have several small bins as opposed to one heavier, large wood bin. Small bins work best in homes, apartments and school classrooms. They are easy to tuck under desks, place below kitchen sinks and keep out of the way in laundry rooms.
Remember: If you make a worm bin out of a plastic storage container, never snap the lid shut tight. The lid should lay loosely on the bin.
The large worm bin below (figure 1) is heavier, but is desirable in situations where a bin is going to be outdoors part of the year or in a heated garage. Wood bins allow for a better air movement and a bin this size (figure 1) will take care of food scraps from a family of four.
Remember: If you are truly going to make this an "environmental experience", try making your bin out of an old dresser drawer.
Depending on the size of the container, drill 8 to 12 holes (1/4 - l/2 inches) in the bottom for aeration and drainage. A plastic bin may need more drainage -- if contents get too wet, drill more holes. Raise the bin on bricks or wooden blocks, and place a tray underneath to capture excess liquid which can be used as liquid plant fertilizer.
The bin needs a cover to conserve moisture and provide darkness for the worms. If the bin is indoors, a sheet of dark plastic or burlap sacking placed loosely on top of the bedding is sufficient as a cover. For outdoor bins, a solid lid is preferable, to keep out unwanted rodents, creatures and rain. Remember, worms need air to live
Worms Bedding:
The bedding for vermicomposting systems must be able to retain both moisture and air while providing a place for the worms to live. Bedding does not have to be purchased and most of us have plenty of bedding resources in our home, office or school. Here are some suitable sources of bedding.
Shredded corrugated cardboard is an excellent bedding, but is difficult to find.
Shredded paper like newspaper and computer paper is easy to find, but may dry out quicker than corrugated cardboard. There is not a problem with the ink from the paper.
Peat moss has a low pH level that may cause a problem for the worms and it is more expensive.
Commercial worm bedding is available in sporting goods stores, but it is also more expensive.
The amount of bedding depends on the size of the box. A 2-by-2 foot box will need between 4 and 6 pounds of dry bedding, a 2-by-3 foot box will take 9 to 14 pounds. No matter what the size, the bin should be 2/3 filled with "fluffed" prepared bedding (see below). For smaller bins, experiment--if you prepare excess bedding, it can be dried, stored and used another time.
Prepare the Bedding:
Water is needed to moisten the bedding. Place the dry, shredded bedding in a large container and add water until it covers the bedding. Allow the bedding to absorb as much water as possible before putting it in the worm bin. This could take from two to 24 hours, depending on the bedding used.
Before putting the bedding in your bin, squeeze the water out from the bedding as much as possible. The bedding should feel like a well-wrung washcloth. Place the bedding in the bin and fluff.
Your bedding needs to remain moist. If it is drying out, mist the paper with water from a spray bottle and dampen the bedding again.
What kind of worms to use and how many?
The worms used in vermicomposting are called redworms (Eisenia foetida), also know as red wigglers, manure worms, red hybrid or tiger worms.
- You can order them through lawn and garden catalogs
- You may be able to find them in a bait store
- If you know someone who has an established supply, they may be willing to sell you some of their worms.
An example of a garden catalog source that sells red worms is ORGANICLIVINGCORNER.COM. There are many others. The internet is a good place to start looking.
What About Nightcrawlers? Do not try to use nightcrawlers or other worms native to Nebraska to stock your worm bin. These worms depend on cooler temperatures and an extensive tunneling system to survive. They will die in your worm bin
Why Redworms? Redworms prefer temperatures between 55 and 77 degrees Fahrenheit and are suited to living in a worm bin. The temperature of the bedding should not be allowed to get below freezing or above 84 degrees.
How Many Worms Do I Need? The amount of worms needed will depend on the amount of kitchen waste generated per day. One pound of redworms will easily take care of each half-pound of garbage. To add worms to the bin, simply scatter them over the top. The skin on the worm reacts to light and they will immediately work their way down into the bedding to get away from the light.
How much Kitchen Waste to use?
The kitchen waste fed to worms can come from a variety of sources, including all vegetable and fruit waste (don't be surprised that some seeds may germinate and potato peels with eyes sprout), pasta leftovers, coffee grounds (with filter) and tea bags. Worms may have a problem with garlic and onion skins. Worms have a gizzard like chickens so fine grit should be added to help the worms digest food. This gritty material includes cornmeal, coffee grounds and/or finely crushed egg shells (dry the shells and then crush). Avoid large amounts of fat, meat scraps or bone. Some sources feel that a small amount of meat and eggs will provide protein to the worms, but be careful you don't overdo it and know that you may attract rodents.
Adding Kitchen Scraps:
First, and foremost, please start slowly. It will take time for bacteria to form and your bin can quickly become very smelly if you add too much food, too fast. In the beginning, add a very small amount of gritty material (see above) and a small amount of vegetable matter. Don't worry about the worms starving because they will be eating bedding as well. You can gradually increase the amount of food as the bin becomes established.
The easiest method is to spread the scraps in a thin layer on top of the bedding. If the bin is kept in a dark place or covered, the worms will come to the surface to eat. You can also pull back a small amount of bedding in the bin and dump in the scraps. Cover the scraps with an inch of bedding. Start at one corner of the bin and bury garbage in a pattern to fill in all the spaces. By the time you get back to the first burying spot, the worms will have composted most of the waste.
If you notice odors, cut back on the amount of food or try chopping the food up into smaller pieces. Note: citrus does have a strong odor and the peelings seem to last a long time in the bin. Bins seem to be more manageable when there is less fruit and citrus and more of the leafy vegetables.
Harvesting the worm castings:
Given the right environment, the worms will go to work to digest the kitchen scraps and bedding faster than any other compost method. The material will pass through the worms' bodies and become "castings." In about 3-4 months, the worms will have digested nearly all the garbage and bedding and the bin will be filled with a rich, black natural fertilizer and soil amendment. Compared to ordinary soil, the worm castings contain five times more nitrogen, seven times more phosphorus and 11 times more potassium. They are rich in humic acids and improve the structure of the soil.
To keep your bin going, you will need to remove the castings from time to time and there are several ways to go about it. One way to do this is to shine a bright light into the bin. The worms are sensitive to light and will move to the lower layers of the bin. Remove the top layer of casting by using your hands or a sieve. Each time you remove some bedding, the worms will be exposed to the light and they will keep migrating down to the bottom of the bin. Pick out any wigglers or worm eggs (small, opaque cocoons) and return them to the bin. Refill the bin with fresh layers of moist bedding and food.
Another method of harvesting composts is to push the black, decomposed material to one side of the bin, and fill the other side with new, moist bedding and kitchen scraps. Then wait several days. The worms will migrate to the freshly filled side of the bin and you can just scoop out the finished compost. Make sure you pick out any wigglers or worm eggs and return them to the bin.
Using the Compost:
For potted plants, add a thin layer to the top of the potting soil. You can also add the compost directly into your soil mix when repotting. In the garden, simply work it into the ground around the base of each plant. The compost is very mild and you won't have to worry about accidental burning or overfertilizing.
Things to Remember:(don'ts)
Don't put plastic bags, bottle caps, rubber bands, sponges, aluminum foil and glass in the bin. These materials will be there forever and make your worm bin look like trash.
Don't let your cat use your worm bin as a litter box. First, cat urine would soon make the odor intolerable. Secondly, the ammonia in the urine could kill your worms. There is also a concern with toxoplasmosis, a disease that is of particular concern to a pregnant woman who may pass on the disease to her unborn child. If you have cats, provide a screen or other device to keep them from using the worm bin as a litter box.
Don't use insecticides around your worm bin. You'll not only take care of a few pests, but also your worms.
Don't use garden soil as bedding for the worms.
Don't mix fresh cow, horse and chicken manure into your bedding. These manures will heat up the bedding and literally cook/kill your worms.
Keep in mind.....
After you've had your worm bin established, you may begin noticing other creatures besides the redworms - especially if you keep your bin outdoors. Most of these are helpful because they help breakdown the materials. These helpful creatures include springtails, sowbugs and pill bugs, and millipedes.
There are also some creatures that may cause you problems. These would include centipedes, predatory mites, fruit flies, rove beetles and ants. Nonlethal methods of control (swatting, traps for fruit flies and ants, etc.) are the best for areas around your worm bins. Rodents are not a problem when the bin is constructed and managed properly.
VERMICOMPOSTING FACTS
Odourless - If properly maintained, vermicomposting is completely odourless
and can be kept anywhere that is close at hand.
Convenient - Since it is odourless, you can keep it handy to fill with food
scraps. Nothing is wasted because it’s too far away, or it’s too
cold to walk outside to the compost bin. Vermicomposting has
the added advantage of allowing you to create compost all year,
right from your kitchen.
Low Maintenance - You can feed the worms once a day, once a week or once
every other week...depending on your level of commitment and
food waste accumulation. It is even possible to leave them for as
long as a month without feeding - just make sure they are well fed
before you leave for that well earned vacation.
Worms Aren’t Fussy - They’ll consume any vegetable waste, egg shells, spoiled
food from the refrigerator, coffee grounds, tea leaves and bags,
low amount of citrus fruit and onions. Avoid meat, bones, grease
fat and oil, dairy products and all inorganic materials.
Environmentally Beneficial - Consumption of organic wastes by earthworms is
an ecologically safe and highly beneficial method to naturally
convert your organic waste into an extremely environmentally
beneficial fertilizer (worm castings) .
Saves Money - No need to buy plant food. Finished compost can be harvested in
as little as 2 to 3 months, leaving you with rich fertilizer for your
plants. Sprinkle the compost on your household plants all year
round, as well as your garden in the spring to give your plants a
healthy start.
Great Bait - You won’t have to worry about stopping to buy bait when you go
fishing….you’ll already have a supply on hand.
Reduces Household Waste - Composting significantly reduces the amount of
household waste going into landfill. This is a significant
environmental issue with landfill sites being closed and more
importantly, new ones opened.
Redworms Uses:
Composting
Raising: cat fish or trout
Gardens (For bigger, healthier and tastier crops)
Lawns (For greener and halthier Grass)
Eliminate or Avoid chemical fertilizers