vedalia การใช้

• Coquillett placed the vedalia beetles on an infested orange tree enclosed in a tent.
• The introduction of vedalia beetles to combat cottony cushion scale is generally recognized as the first instance of successful biological control.
• "Rodolia cardinalis ", the vedalia beetle, was imported to Australia in the 19th century, successfully controlling cottony cushion scale.
• There he found two likely predators of the scale a parasitic fly ( " Cryptochaetum iceryae " ) and the vedalia beetle ( " Rodolia cardinalis " ).
• In 1888 1889 the vedalia beetle, " Rodolia cardinalis ", which is a ladybug, was introduced from Australia to California to control the cottony cushion scale, " Icerya purchasi ".
• One of the earliest successes in the west was in controlling " Icerya purchasi " ( cottony cushion scale ) in Australia, using a predatory insect " Rodolia cardinalis " ( the vedalia beetle ).
• Determination of specialisation need not be a trivial matter, though; for example the larva of the Vedalia ladybird " Rodolia cardinalis " is a specialist predator on a few species of Monophlebidae, in particular " Icerya purchasi ", which is the most notorious of the cottony cushion scale species.