In the absence of natural enemies, ash whitefly populations exploded out of control. The pest originated and occurs widely in the Middle East and Mediterranean and was accidentally introduced into California via infested plant material.

Where is the ash whitefly from?

Ash Whitefly Description:

Ash Whitefly is a native European and North African pest that has been harming ash, citrus, and other fruit trees throughout North America (in areas such as Southern California and Florida) since the late 1980s.

What is the cause of whiteflies?

Homeowners usually bring whiteflies inside through infested greenhouse plants and produce. They hide and feed on the undersides of leaves, which makes them hard to detect. Additionally, certain ornamentals, such as hibiscus plants and mulberry trees, attract whiteflies.