insect
Latin Name Aonidiella aurantii
Common Name California red scale
Biology

Adults are ~2 mm, circular flat scales. Females produce 100-150 live offspring. Crawlers settle on young shoots/fruits. Multiple generations/year. Overwinters as females .

Damage

Feeds on citrus, fig, and avocado. Causes yellowing, defoliation, fruit drop, and weakening trees. Transmits viruses .

Distribution Regions

Global in subtropical/tropical regions (e.g., California, Mediterranean, Australia) .

Monitoring

Visual inspection of scales. Sticky traps. Monitoring crawler activity with water traps .

Recommended Traps

Sticky traps. Pheromone traps for males .

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