Abstract:
The health of plants is very important to note especially in forest plants such as Miniature tropical Rainforest (MH2T). Information about the health of plants especially red Meranti is necessary so that the purpose of development in MH2T can be achieved, the preservation of endemic types such as plants Meranti and ulin do not suffer damage or attack pests and diseases and of course in order to maintain the sustainability of tropical rainforest. Forest damage can be caused by the presence of biotic and abiotic factors, therefore necessary introduction of the types of damage found, alternative control and introduction of forest health monitoring methods with the aim of building a productive and healthy plant forest is able to achieve. This research aims to identify leaf damage and calculate the percentage of its damage. The method used in this research is by scoring the visible damage that occurs in red Meranti plant leaves that exist in MH2T, and calculate the percentage damage of red Meranti plant leaves using the formula according to Abadi (2003). The result of this research is the dominant type of damage that is the leaf loss of 194 cases with a percentage value of 34.52% damage while the largest damage group as many as 139 cases with the type of leaves fall, perforated and dry and found in the S. Leprosula plant.
