Worm Farming Half of the waste Australians households generate in an average week is organic waste. Feeding leftover fruit and vegetable scraps to compost worms is a cheap and simple way of recycling your organic waste and reducing the waste you send to landfill. Why worm farm? Worm farming replicates a natural recycling process of organic materials by unlocking the nutrients and returning them back to the soil via the worm castings and worm ‘wee’ (tea). www.logan.qld.gov.au What you will need to build a simple worm farm A container for the worm farm. The container must have drainage holes. A polystyrene foam fruit box about 28 cm high with drainage holes is ideal for a first worm farm. At least 1,000 compost worms. These worms will multiply to 2000 in two months if the conditions are correct. A bucket of 'bedding' material. Wet core peat is an ideal bedding material. It is available in block form from most hardware and garden centres. With the help of a worm farm, organic materials can be recycled into worm castings and worm tea, which are natural fertilisers for your garden. Worm farms are compact and ideal for people living in flats or houses with small backyards, or for dealing with lunch scraps from an office or school. A suitably sized loose cover, such as hessian bag, cardboard or a whole newspaper. Worm farming Fruit and vegetable scraps from your kitchen. Worm farms use special worms called compost worms that thrive in the warm, rich, moist environment of the worm farm. The most common compost worms are Tiger Worms, Red Wrigglers and Indian Blues and they can eat about half of their body weight in one day. The population in a well maintained worm farm doubles every two to three months. Worm farms are available from garden centres and hardware stores. For an inexpensive alternative, why not build your own? Method Step 1 - Choose a location for your worms to live. They need a well drained, protected, shady spot. Step 2 - Make sure the container has adequate drainage. Drill holes if necessary. Then line you container with a couple of layers of damp newspapers or cardboard. Step 3 - Half-fill the container with bedding mix that is moist, but not soggy. Coir makes an excellent bedding mixture and generally comes in a compact block - just follow the packet instructions to get it ready for your worms. Then prop the container on bricks to make sure the drainage holes are clear. Step 4 - Add the compost worms, then cover the container with a damp hessian bag or newspaper. Worm Farming continued... www.logan.qld.gov.au Step 5 - After one week, place some fruit and vegetable scraps into one corner of the worm farm. Avoid placing the following in a worm farm: Step 6 - Continue to add fruit and vegetable scraps each week, placing the food in different corners of the worm farm each t i m e . I f uneaten food remains after 5 days, then you know you have overfed the worms. meat products Step 7 - After feeding the worms, cover again with the damp hessian bag or newspaper to avoid attracting vinegar flies. large quantities of bread Step 8 - Add water when necessary to prevent the worm farm from drying out. It is important to keep the worm farm moist, but not soggy. Step 9 - Your worms will produce castings and worm tea. It is these by-products that you can use in and on your garden in the same way as compost, or mixed with commercial potting mixes to pot plants, and liquid fertilisers. dairy products oily products onions, garlic and citrus fruits Worm farm trouble shooting You need to make sure you have the right balance of organic materials, moisture and air to have a successful worm farm environment. If you have a problem, the following chart may be of assistance. Problem Causes Solutions Strong, bad smell Not enough air circulation Fluff bedding & make sure bedding or compost is not blocking the air holes. Too much food in bin Feed worms less food and/or less often. Improper food added Remove meat, dairy and oily products. Anaerobic conditions Add some dry bedding to absorb moisture. Food exposed Cover food and bedding completely. Too much food Feed worms less food and/or less often. The right worm food Worms will eat almost anything, however like us there are things that are good for them and things that are not: Fruit flies You can place the following in a worm farm: fruit and vegetable scraps Ant infestation Dry conditions Bedding may be too dry, dampen with some water. egg shells Mite infestation Mite population is high Avoid adding foods with high moisture content, such as fruits and vegetables. Overly moist Too much water added to bedding Stop adding water & add some shredded paper to soak up extra moisture. Too much food with high moisture content Put in less fruit and vegetable waste and add some shredded paper. shredded paper products fallen leaves tea bags coffee grounds lawn clippings and weeds