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All Journal Jurnal Hutan Tropika ARRUS Journal of Engineering and Technology Jurnal Wana Tropika Proceedings Series on Physical & Formal Sciences Empowerment: Jurnal Pengabdian Masyarakat Jakadimas Jurnal Wana Tropika
Woesono, Hastanto Bowo
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Journal : Jurnal Hutan Tropika

 1 
Efektivitas Ekstrak Serbuk Kayu Jati dan Mahoni Sebagai Pestisida Nabati untuk Mengendalikan Hama Kutu Putih pada Bibit Sengon (Falcataria moluccana): Effectivity of Teak and Mahogany Wood Extracts as Botanical Pesticide to Control Pseudococcus calceolariae Pests at Falcataria moluccana Seedlings Kusumaningsih, Karti Rahayu; Woesono, Hastanto Bowo; Duru, Anastasya
HUTAN TROPIKA Vol 19 No 1 (2024): Volume 19 Nomor 1 Tahun 2024
Publisher : Jurusan Kehutanan, Fakultas Pertanian Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jht.v19i1.14221

Abstract

Waste of teak and mahagony woods in the form of sawdust has not been utilized. Those woods contain of extractives subtances such as carbamic acid, ammonium carbamate, phenol, flavonoid, saponin, etc. which potential to be used as botanical pesticide to control pests. The purpose of this research is to know effectivity of teak and mahagony wood extracts as botanical pesticide with several solution formulas, to control Pseudococcus calceolariae pest at Falcataria moluccana seedlings. Teak and mahagony sawdust were extracted with ethanol solvent and made into botanical pesticide with 10%, 20% and 30% formulas. The observed parameters are decrease of incidency and severity of P. calceolariae attack at F. moluccana seedlings after botanical pesticide application. Results of the research showed that teak and mahogany wood extracts were effective to control Pseudococcus calceolariae pest at Falcataria moluccana seedlings. Teak wood extract with 30% formula gived higher incidency and severity decreased of P. calceolariae attack, with decrease of incidency and severity were 89.32% and 94.44%.
Karbon Tersimpan Analisis Komposisi Dan Potensi Cadangan Karbon Tersimpan Pada Vegetasi Penyusun Riparian Sungai Pusur Kabupaten Klaten: Analysis Of Composition and Potential Carbon Stock Stored in Riparian Vegetation Pusur River in Klaten District Woesono, Hastanto Bowo; Wahyudiono, Sugeng; Telaumbanua, Imelda Kristy
HUTAN TROPIKA Vol 19 No 1 (2024): Volume 19 Nomor 1 Tahun 2024
Publisher : Jurusan Kehutanan, Fakultas Pertanian Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jht.v19i1.14340

Abstract

The quantity of biomass in the forest is the result of the difference between production through photosynthesis and consumption by respiration and harvesting processes. This study aims to determine the types of vegetation, vegetation composition and potential carbon stocks at various altitudes. This study used a quantitative survey method, to obtain and collect vegetation information data along the riparian of the pusur river. The conclusion of the types of vegetation that make up the Pusur River Riparian is 36 types of understory plants, 8 types of seedlings with a diameter of less than 5 cm, 17 types of trees with a diameter of 5-20 cm, 21 types of trees with a diameter of 20-50 cm, 7 types of trees with a diameter above 50 cm. The composition of vegetation types that make up the Pusur River Riparian is 1,239 individual understory plants, 33 seedlings less than 5 cm in diameter, 85 trees 5-20 cm in diameter, 104 trees 20-50 cm in diameter, and 14 trees above 50 cm in diameter. The potential carbon stock stored in the vegetation that makes up the Pusur River Riparian is in block 1 upland as much as 395.24 tons, block 2 middle land as much as 309.36 tons and block 3 lowland as much as 360.98 tons, with a total along 26 km of 1,065.57 tons, and for those that are likely to be lost due to commercial timber species is 701.63 tons or equivalent to 65.85% of the total carbon.
Co-Authors ., Rawana Agus Prijono Budi Raharjo Damayanty, Dhewy Duru, Anastasya Falah, M. Darul Gaol, Santo Wibowo Lumban Hadi, Didik Surya Herin, Maria C.P Kusumaningsih, Karti Rahayu Nofriansyah, Wahyu Nugroho, Yunianto Hargo Pratiwi, Lufitasari Indah Pujasa, Dwita Purwanto, Muhammad Amir Rawana Saputro, Setiaji Heri Sentot Purboseno Sugeng Wahyudiono, Sugeng Suhartati, Tatik Supriyanto, Gani Sushardi Sushardi Sushardi, Sushardi Suwadji, Siman Telaumbanua, Imelda Kristy Webliana, Kornelia Wisnu Wardana, Wisnu