DURING the early years of rubber planting in the East considerable optimism prevailed in certain quarters as to the powers of the Para rubber-tree (Hevea brasiliensis) to resist disease in its new ...

Until recently the supply of rubber came chiefly from two' sources--the forests of Brazil, which contain the tree known as Hevea brasil-iensis, furnishing the Para rubber of commerce which ...

Natural rubber is made from latex harvested from Para rubber trees. Indonesia's rubber plantation area is the world's largest, with 3.6 million hectares. It's followed by Thailand, with 3.1 ...