The native Australian insect that famously demonstrated the potential of 'classical' biological control of insect pests, when stocks were released in California in 1888-89 in a bid to control an outbreak of Cottony cushion scale. https://biocontrol.entomology.cornell.edu/predators/Rodolia.php
Rodolia cardinalis is listed in the following regions:
Synonyms
Vedalia cardinalisReceive alerts of new sightings
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