Normal Amount
1 cup of powdered sugar
4 teaspoons Methyl paraben
8 cups potato flakes
1/2 - 1 cup of brewers yeast.
Large Batch
Makes approx. 30 1/3 cup cultures.
3 cups of powdered sugar
1/4 cup Methyl paraben
6 quarts cups potato flakes
1.5 - 3 cups of brewers yeast.
Makes approx. 2 gallons of media (approx 100 1/3 cup cultures).
Sift the powdered sugar and the Methyl paraben into a gallon or larger ziplock bag or container.
Shake well.
Add brewer yeast and shake again.
Add the potato flakes and brewers yeast to the ziplock bag and shake well.
I normally use 1/3 to 1/2 cups of media mixed with equal amounts of hot water in a quart jar. This is the media I most frequently use.
1 cup banana (about 2 bananas)
1 cup apple sauce
1/8 cup vinegar (or 2 tablespoons or 15 ml)
2 cups oatmeal
a few granules of baker's yeast
Put banana and apple sauce in blender or bowl and mix until the banana is liquified. Heat in the microwave for approximately 2 min. or until hot enough to kill off any wild fruit fly eggs that were in the bananas, and to reduce mold. Add the vinegar and mix in oatmeal until it becomes firm, but still moist. Put the mixture in wide mouth quart canning jars and allow to cool. Once cooled, add the yeast and flies. Any unused media can be frozen until needed.
Makes approx. 6 quart jar cultures
I have been using a mixture of potato flakes, sugar, and Fleischman's activated yeast for years now. But, after adding a lot of mouths to feed to my collection, I had decided I was going to have to find something that made a lot more flies per jar. With input from a lot of different sources (Dave and Erin, Tracy Hicks, Jutti,) etc , I have composed a mush that has QUADRUPLED
my fly production. I have had very little problem with mold, and the cultures seem to last for at least a month or longer.
In a pot bring the following to a boil.
2 cups water
2 cups vinegar
1/8th cup Dark molasses
1/2 can of grape juice concentrate
2-3 overripe mushed up bananas
After bringing this mixture to a boil, add the dry material
1/2 cup malt of meal
2/3 cup potato flakes
1/3 cup Brewers Yeast (the key ingredient)
Place about 2 inches of medium in each qt size jar, and sprinkle maybe an 1/8th teaspoon of activated yeast on the top. A day later, 20-30 flies are added. I have tried this medium with my hydei and melanogaster and I can't believe how many larvae are swarming the sided of the jar, I literally can't see through the glass jar, they cover every square inch of glass. For the first 10 days, I keep the cultures in cardboard boxes which are kept closed, after that, I keep them on a large shelf to help the larvae dry out.