Certain limonoids are antifeedants such as azadirachtin from the neem tree. Botanical acaricides are represented by azadirachtin, an extract of the neem tree. The skin (bark) of the neem tree should be reddish. The name "sadao" is the Thai word for Neem Tree. He died in H. 1101, and was buried beneath a neem tree. Twigs of Neem Tree or Indian Lilac have been used by ancient Indians. Urea which is coated with neem tree seed oil is called "neem-coated urea". The neem tree is noted for its drought resistance. The neem tree is often confused with a similar looking tree called bakain. The leaves and flowers of the neem tree ("sadao") are also eaten blanched. The other focus of the day is to pray to the neem tree (Azadirachta indica). In 1830, the bourse activities in Kolkata were conducted under a neem tree. For the same reason this region is also known as the Neem tree region. Budhai Ram had planted a neem tree when his son was born. People worship the neem tree as Shitala for good health and protection from dangerous sicknesses.