THE GREEN THUMB

摘要

FRUIT FLIES IN THE KITCHEN: If you see a small fly attracted to ripe or overripe fruit, it's a fruit or Pomace fly (Drosophila), useful in laboratories because it multiplies so fast (10 days) and in such large numbers. It not only is attracted to overripe fruits, but also to amyl alcohol, ethyl alcohol, acetic acid (vinegar), lactic acid and other products that occur in fermenting fruit. They are called pomace flies because the larvae ("lar-vee" or "worms") live in decaying pomace in cider mills andwineries.