Kelimpahan Populasi dan Serangan Ulat Heortia Vitessoides pada Tanaman Penghasil Gaharu (Aquilaria Microcarpa) di Kalimantan Selatan
Strategy of prevention and control of agarwood pest need information about intensity of attacks and abundance of Heortia vitessoides larvae population. This study aims to get a percentage of attacks intensity and abundance of pest of H. vitessoides larvae populations in South Kalimantan. Observations and data collection was done every month by damage leaf scoring and counting the number of larvae population. Observation plots consist of 2 plots for observation of attacks intensity at each location, 5 plots for observation of larvae population abundance in Gumbil and 4 plots in Layuh. Total observations plot made were 13 plots. The results showed average of the highest intensity of larvae attacks (22.9%) occurred in September and the number of the largest larvae population (121.53 individuals/tree) in February in Gumbil village, Hulu Sungai Selatan. The average of highest intensity of larvae attacks (21%) occurred in February ke dua pengamatan and the highest population of larvae (37.71 individuals/tree) in February ke tiga pengamatan in Layuh village, Hulu Sungai Selatan, South Kalimantan.