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Keanekaragaman Serangga Hama Pada Perkebunan Kopi Arabikam (Coffea arabica L.) dan Robusta (Coffea canephora pierre.) di Desa Juma Lubang dan Desa Tumangger Kecamatan Sumbul Kabupaten Dairi Aidatul Oktavianda; Darma Bakti; Lisnawita Lisnawita
Jurnal Agroekoteknologi Vol 7, No 2,April (2019)
Publisher : Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (388.03 KB) | DOI: 10.32734/jaet.v7i2,April.21945

Abstract

Keanekaragaman serangga hama pada perkebunan kopi arabika (Coffea arabica L.) dan robusta (Coffea canephora Pierre.)  di Desa Juma Lubang dan  Desa Tumangger Kecamatan Sumbul Kabupaten Dairi. Penelitian ini bertujuan untuk mengetahui keanekaragaman serangga hama dan musuh alami pada lahan pertanaman kopi arabika dan kopi robusta di Desa Juma Lubang dan Desa Tumangger Kecamatan Sumbul Kabupaten Dairi. Identifikasi dilakukan di Laboratorium Hama, Fakultas Pertanian, Universitas Sumatera Utara, Medan. Penelitian ini di lakukan pada bulan Januari sampai Maret 2018. Penelitian ini menggunakan 5 jenis perangkap serangga yaitu : sweep net, pitfall trap, yellow trap, light trap dan handpicking, dan diulang sebanyak enam kali. Hasil penelitian menunjukkan serangga yang tertangkap pada lahan pertanaman kopi arabika terdiri dari 8 ordo dan 27 famili. Nilai kerapatan relatif tertinggi pada lahan kopi arabika sebesar 38,326%,  yang terendah sebesar 0,0629% dan  indeks keanekaragaman Shanon-Weiner (H’) 2,17236 (sedang), sementara pada lahan pertanama kopi robusta terdiri dari 8 ordo 23 famili dengan nilai kerapatan relative tertinggi sebesar 68,2836%, yang terendah sebesar 0,07463% dan nilai indeks keanekaragaman serangga sebesar 1,32258 (sedang).
Uji Evektifitas Eksudat Akar Bangun – Bangun (Coleus amboimicus) untuk Menghambat Pertumbuhan Jamur Akar Putih (Rigidoporus micropus) di Laboratorium irfansyah harahap; Lisnawita Lisnawita; Suzanna F Sitepu
Jurnal Agroekoteknologi Vol 7, No 2,April (2019)
Publisher : Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (645.379 KB) | DOI: 10.32734/jaet.v7i2,April.21962

Abstract

The white root rot disease caused by Rigidoporus micropus is the main disiase found in rubber trees that can cause decay on the roots. The research begins from April until August, 2016. It was conducted in Laboratorium Proteksi Balai Pembibitan Karet Sungai Putih Laboratory of Protection of Rubber Breeding Center, Deli Serdang District, North Sumatera Province. The objective of the research was to find out the potentials of root exudates to inhibit the growth of R. microporus. This research used non-factorial RAL (Completely Randomized Design) which observed the growth area of colony of R. microporus, hypha abnormality, inhibition percentage, protein analysis as well as hypha microscopy and macroscopy. In this study it was found that protein compounds were not inhibiting factors for growth of white root fungi but phenol compounds. The largest growth of R. microporus colony was found in the control treatment (64 cm2). Meanwhile, the lowest growth of R. microporus colony was found in the treatment of 10% of bangun-bangun root exudates. This research proves that bangun-bangun root exudates were able to inhibit the growth of white root rot disease of rubber. Hypha abnormality was found in every treatment which has been added by bangun-bangun root exudates. However, abnormalities of white root fungal hyphae were clearly seen in the treatment 10% of bangun-bangun of root exudates.
Co-Authors Afriani, Astri AHMAD RAFIQI TANTAWI Aidatul Oktavianda Arie Ramadhina Arie Ramadhina Ary Hutama S Aulia Aghna Chornelius Karo-Karo Dani Sutanta Syafii Daniel Erikson Hutabarat Darma Bakti Edison Purba Eli Saputri Friska Erawati Sitepu Gevit R Tambunan Hasanuddin Hasanuddin Hasanudin - - Hasanudin Hasanudin irfansyah harahap irma aryani Ivayona Astari Lahmuddin Lubis Lahmuddin Lubis Lahmuddin Lubis2 Lisnawita Lisnawita Lubis, Lahmuddin Marjan Sinaga Maryani Cyccu Tobing Mena Uly Tarigan Mukhtar Iskandar Pinem Muklis Adi Putra Nugraha Pratama Dhana Ramadhina, Arie Rizki Trianno Sinaga Setia Sari Girsang Sri Endah Nurzannah suryani sajar Suzanna F Sitepu Suzanna Fitriany Sitepu, Suzanna Fitriany Syahrial Oemry Tetra Febryandi Sagala Yuan Cynthia Br. Simanjuntak Yuswani Pangestiningsih