Nutrient-rich fly medium
Nutrient-rich fly medium
8 g agar
80 g cornmeal
18 g dried yeast
Live baker’s yeast
80 g malt extract
7 g molasses
10 g soybean meal
Dissolve ingredients (except propionic acid and live baker’s yeast) in 1 L of H2O. Boil extensively on a hot plate until all ingredients are well dissolved. Add the propionic acid (a mold inhibitor). Pour the medium into 175-mL bottles, and allow it to solidify. Add a large drop of live baker’s yeast on the surface of the medium in each bottle.
