Formosan termites in the past 10 years have caused more damage than hurricanes, tornadoes and floods combined.
(Formosan termites in the past 10 years; have caused; more damage than hurricanes, tornadoes and floods) (hurricanes, tornadoes and floods; combined; )
Formosan termites in the past 10 years hurricanes, tornadoes and floods
have caused combined
more damage than hurricanes, tornadoes and floods