Yes, Chinaberry Tree is toxic to dogs!
Dogs accidentally consuming the Chinaberry Tree 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).
Chinaberry Tree consumption is also toxic to Cats and Horses.
Toxic Principles Of Chinaberry Tree: Tetranortriterpenes (meliatoxins).
More Info About The Chinaberry Tree Plant
Scientific Name: Melia azedarach
Family: Meliaceae.
Also known as: Bead Tree, China Ball Tree, Paradise Tree, Persian Lilac, White Cedar, Japanese Bead Tree, Texas Umbrella Tree, Pride-of-India.
The answer is based on information found on The American Society for the Prevention of Cruelty to Animals (ASPCA) website.