Yes, Bergamot Orange is toxic to dogs!
Dogs accidentally consuming the Bergamot Orange plants can show the following clinical symptoms: Vomiting, Prolonged Depression, Incoordination, Hypersalivaton, Sleepiness Or Excitation, Dilated Pupils, Low Body Temperature, Low Blood Pressure, Coma, Seizure And Death (In Rare Cases).
Bergamot Orange consumption is also toxic to Cats and Horses.
Toxic Principles Of Bergamot Orange: Essential oils and psoralens.
More Info About The Bergamot Orange Plant
Scientific Name: Citrus Aurantium
Family: Rutaceae.
Also known as: Bergamot, Citrus bergamia.
The answer is based on information found on The American Society for the Prevention of Cruelty to Animals (ASPCA) website.