Research into countermeasures to these pests has yielded no results; researchers from the Kerala Agricultural University and the Central Plantation Crop Research Institute, Kasaragode, continue to work on countermeasures.
42.
Orangutan populations have been squeezed on several fronts : wild animals are losing their habitats, and many are killed or injured by hunters and by workers defending plantation crops.
43.
Cotton became a commercial plantation crop tended by slaves in the West Indies, so that by the 1650s, Barbados had become the first British West Indies colony to export cotton.
44.
Plantation crops are harvested after 4 5 years for fuel wood, 8 10 years for pulp wood, 15 20 years for poles and 30 60 years for logs for sawing.
45.
Later, in 1978, the title for " National Symposium on Plantation Crops " was modified as " Annual Symposium on Plantation Crops ", indicating an annual appearance up to PLACROSYM V.
46.
Later, in 1978, the title for " National Symposium on Plantation Crops " was modified as " Annual Symposium on Plantation Crops ", indicating an annual appearance up to PLACROSYM V.
47.
Cotton became a major plantation crop after 1800 in the " Black Belt, " that is the region from North Carolina in an arc through Texas where the climate allowed for cotton cultivation.
48.
Production of former plantation crops like vanilla, ylang-ylang, coconut oil and coffee remain the principal economic activity of the region beyond subsistence farming and fishing, although mining is also a source of income.
49.
Activities that followed resulted in the development of economic and plantation crops, emergence of important state departments such as Department of Agriculture ( 1912 ) and institutions for the development of Plantation Crops such as Rubber.
50.
Activities that followed resulted in the development of economic and plantation crops, emergence of important state departments such as Department of Agriculture ( 1912 ) and institutions for the development of Plantation Crops such as Rubber.