Medical tests started in the 1940s and 1950s, searching for the cause of the disease. Initially, it was expected to be lead poisoning due to the lead mining upstream. Only in 1955 did Dr. Ogino and his colleagues suspect cadmium as the cause of the disease. Ogino coined the term itai-itai disease.
Salix babylonica, commonly called weeping willow or Babylon weeping willow, is a medium to large deciduous tree with a stout trunk topped by a graceful broad-rounded crown of branches that sweep downward to the ground.It grows to 30-50â (sometimes to 60â) tall and as wide.It is native to China.alix babylonica, commonly called weeping willow or Babylon weeping willow, is a medium to large deciduous tree with a stout trunk topped by a graceful broad-rounded crown of branches that sweep downward to the ground. It grows to 30-50â (sometimes to 60â) tall and as wide. It is native to China.
Weeping willow trees work well in areas that are naturally quite moist. Since they love water, Salix babylonica should not be planted near sewer or water lines, or septic tanks, as they will naturally grow towards them and potentially break them.Weeping willow trees do tend to shed a lot of leaves and twigs, and the tree is brittle.The bark is reddish brown during the winter. Plan on this as a relatively short term tree-they live, on average, for about 30 years. Growing Tips: This tree grows best in moist soil that is well-draining.atin Name: The botanical name for this tree is Salix babylonica. The Salix genus is part of the Salicaceae (willow) family. Common Names: This species is the weeping willow. Preferred USDA Hardiness Zones: You can plant Salix babylonica in Zones 4-9a.