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Pollo, H. N.
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Agriculture, Biological Sciences & Forestry

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INVENTARISASI ANGGREK HUTAN DI TAMAN WISATA ALAM BATUPUTIH, KOTA BITUNG, SULAWESI UTARA Yubu, Amansyo; Pollo, H. N.; Lasut, M. T.
EUGENIA Vol 24, No 3 (2018)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/eug.24.3.2018.22790

Abstract

ABSTRACT Orchid is the largest family that occupies 7-10% of flowering plants and has around 20,000 to 35,000 species. In Sulawesi, according to experts there are around 5000 species of plants that are not known with certainty about their spread and abundance. It has been estimated that approximately 253 endemic orchid species, around 80% of the total number of orchids. In the life stage, tropical orchid plants are epiphytic, with the root system attached to the tree, but does not harm the host tree. There are also those that grow geofitis, with other terms terresterial means to grow on the ground with roots in the soil. There are also those that are saprophytic, grow on the media of dried leaves and weathered wood that has rot into humus. To inventory forest species in Batuputih Nature Park, Bitung City, North Sulawesi. The study was conducted in January - February 2018. Data collection was carried out by exploratory methods. The types of orchids that were found during exploration in TWA Batuputih, which are sorted by the type most found on the three transects: namely Dendrodium sp with a total of 12 points at a height of 40-200 masl, Phaleonopsis amabilis with a height of 52 - 102 masl as many as 3 points while, Dendrodium indivisum with a number of 1 point, which is at an altitude of 136 masl, Nervilia aragoana as many as 10 points with an altitude of 10-84 masl, and Nervilia plicata found only 1 point, at an altitude of 52 masl. Of the five types consisted of 3 genera, namely Dendrodium, Phaleonopsis, and Nervilia, and 2 types of (habitats) terrestrial and epiphytes.Keywords: orchid, type and habitat of forest orchids
IDENTIFIKASI JENIS SERANGGA HAMA DAN TINGKAT KERUSAKAN PADA Diospyros Celebica Bakh. Mokodompit, Hendra S.; Pollo, H. N.; Lasut, M. T.
EUGENIA Vol 24, No 2 (2018)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/eug.24.2.2018.22794

Abstract

ABSTRACT Diospyros celebica Bakh is luxury wood which is endemic to Sulawesi.  The Environment and Forestry Research and Development Istitute of Manado is implementing an ex situ conservation of D. celebica through planting it in  The Arboretum since  2012.  The D. celebica stand at the BP2LHK Arboretum in Manado was attacked by insects on the leaves, the leaf part is gnawed from the edge to the vein and midrib. The purpose of this study is to identify the types of insects which is pest to leaves of D celebica and calculate the level of damage caused. The study was conduct on the plot of D. celebica stands by census observation. Two types of insects were identified, namely leaf cutting bees (Megachile sp) and caterpillars from the order of Lepidoptera. The main insects that damage the leaves of D. celebica is leaf-cutting bee (Megachile sp) because this insect has no natural predators. The caterpillars of the order lepidóptera have a number of natural predators, such as Pycnonotus aurigaster, Centropus bengalensis, Phaenicophaeus calyorhynchus, Hypothymis azurea, and Oecophylla smaragdina. The results showed that the frequency of insect attacks on D. celebica leaves was 97.44%, there are 38 of 39 plant observed were attacked by insect. The intensity of insect attacks on stands of D. celebica is 11.54%, this result shows that pest control in stands is not yet necessary, since of the intensity of the attack is including minor damage.Keywords: insect, pests, Diospyros celebica Bakh., Intensity of damage
Co-Authors Lasut, M. T. Mokodompit, Hendra S. Yubu, Amansyo