Strong mosquito repellent - Ocimum - Maduru Tala

Maduru Tala or Gas Tala plant commonly called in English as 'Basil' is a native plant to Sri Lanka. Also it is native to India and South America. Madurutala plant or Ocimum gratissimum is a species of genus Ocimum in family Lamiaceae, closely related to Ocimum americanum also called Sinhalese is Tala or Sudu Tala that species of same genus Ocimum and people often confuse with species in the Ocimum genus which are Ocimum americanum, Ocimum ovatum, and Ocimum tenuiflorum.
The Maduru Tala or Ocimum gratissimum plant commonly found grass lands, border of forest, or road side ways in dry zone in Sri Lanka as a weed and extinct due to habitat lost from populated area in low country. However, It is occasionally found on some areas of wet zone in low country. The plant grows as shrub up about one or two meters in height. It is a herbal plant and has some medicinal properties including Insecticides so smoke of heated leaves and stems of Maduru Tala plant can use as a strong mosquito repellent.