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All Journal Jurnal Fitopatologi Indonesia AGROEKOTEKNOLOGI

Lisnawita Lisnawita

Universitas Sumatera Utara

Author-ID : 2452119

Agriculture, Biological Sciences & Forestry Medicine & Pharmacology

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Efektifitas Beberapa Teknik Pengendalian Setothosea asigna pada Fase Vegetatif Kelapa Sawit di Rumah Kaca Marjan Sinaga; Syahrial Oemry; Lisnawita Lisnawita
Jurnal Agroekoteknologi Vol 3, No 2 (2015)
Publisher : Universitas Sumatera Utara

The aim of research was to get an effective control technique to control Setothosea asigna onvegetative phase of palm oil in greenhouse. The research was held at Greenhouse of AgricultureFaculty University of Sumatera Utara, Medan since April – May 2014. The method of this researchwas Completely Randomized Design Non Factorial with seven treatments, M0 (control), M1 (2gram MNPV/ litre of water), M2 (Bacillus thuringeensis with concentration 7.5%), M3 (neem leafextracts with concentration 4%), M4 (Forficulla auricularia three pairs), M5 (insecticidedeltametrin with concentration 3%) and M6 (insecticide dimetoat with concentration 1%)respectively with four replications. The parameters are the percentage of mortality, symptoms deathof pests and time death of pest. The result showed that insecticide deltametrin most effective thanthe others with percentage of mortality 100% at 4 days after application. The fastest time death ofimago was 1.63 day after application with symptoms body of S. asigna was white like milk.Keywords: control technique, Setothosea asigna, mortality, time death

Pengaruh Beberapa Jenis Termitisida dalam Mengendalikan Rayap (Captotermes curvignathus Holmgren) di Laboratorium Ary Hutama S; Yuswani Pangestiningsih; Lisnawita Lisnawita
Jurnal Agroekoteknologi Vol 3, No 3 (2015)
Publisher : Universitas Sumatera Utara

The objective of this research was to get an effective termiticides to control termites (C. curvignathus) in the laboratory. The research was conducted at Pest Laboratory, Agricultural Faculty, University of Sumatera Utara, Medan, from April until May 2014. The method used Randomized Complete Design Nonfactorial with seven treatments. The tratments were (control, cassava bark 25g/L water, cassava bark 50g/L water, cassava bark 75g/L water, cassava bark 100g/L water, kerosene and termiticide (active ingredient imidakloprid) and three replications. The results showed that kerosene was more effective to control termite that the others with mortality of 95% followed by imidacloprid termitisida (85%), cassava bark 100g / L (76.67%), whereas cassava bark 75g / L, 50 g / L, 25g / L weren’t effective to control termite with percentage of mortality were 65, 50, 46.67% respectively. Termite's death marked by the existence of body color changed from pale white to blackish brown color and stiff body shape then into wrinkles.Keywords : termiticide, Captotermes curvignathus, mortality

Enkapsulasi Beberapa Jenis Trichoderma. sp. pada Benih Kedelai untuk Mengendalikan Penyakit Sclerotium rolfsii Sacc. Eli Saputri; Lisnawita Lisnawita; Mukhtar Iskandar Pinem
Jurnal Agroekoteknologi Vol 3, No 3 (2015)
Publisher : Universitas Sumatera Utara

Encapsulation of Some Trichoderma sp. on Soybean Seed to Control Sclerotium rolfsii Sacc. The research aimed was to get species of Trichoderma which mixed alginat or tapioca encapsulated soybean seed to inhibiting S. rolfsii. This research was conducted in Laboratory of Plant Disease, Faculty of Agriculture, University of Sumatera Utara, use Randomized Block Design 3 factors and sixteen treatments : alginate, tapioca, alginate + S. rolfsii, tapioca + S. rolfsii, alginate + T. harzianum, tapioca + T. harzianum, alginate + T. koningii, tapioca + T. koningii, alginate + T. viridae, tapioca + T. viridae, alginate + T. harzianum + S. rolfsii, tapioca + T. harzianum + S. rolfsii, alginate + T. koningii + S. rolfsii, tapioca + T. koningii + S. rolfsii, alginate + T. viridae + S . rolfsii, tapioca + T. viridae + S. rolfsi, respectively with four replications. The result showed that all of Trichoderma sp. isolates which mixed alginat or tapioca have high viability in inhibiting S. rolfsii. All of Trichoderma isolates enabled to reduce damping off on soybean seed. The treatments alginate + T. harzianum + S. rolfsii, tapioca + T. harzianum + S. rolfsii, alginate + T. koningii + S. rolfsii have high viability in inhibiting damping off by 100 % and followed tapioca + T. viridae + S. rolfsi and alginate + T. viridae + S . rolfsii (75%) and tapioca + T. koningii + S. rolfsii (50%).Key words: encapsulated, damping off, Sclerotium rolfsii, Trichoderma sp.

Keragaman Jamur Antagonis Pada Rhizosfer Karet (Hevea Brassiliensis Muell.Arg.) Sehat dan Terserang Jamur Akar Putih (Rigidoporus Microporus (Swartz: Fr) irma aryani; Lisnawita Lisnawita; Lahmuddin Lubis
Jurnal Agroekoteknologi Vol 7, No 2,April (2019)
Publisher : Universitas Sumatera Utara

The beneficial microorganisms in the rhizosphere are very abundant. This potential, especially antagonistic fungi can be used to control soil-borne pathogens, including in controlling white root rot disease which is a soil-borne pathogen. This study aims to determine the antagonistic fungal diversity of healthy rubber rhizosphare and infected with white root rot disease. This research was conducted in Plant Disease Laboratory, Faculty of Agriculture, Universitas Sumatera Utara from October 2017 until March 2018. The research was conducted by collecting of soil samples from healthy rubber plant and infected white root rot disease in rubber plantation of Silomlom Village, Simpang Empat Sub-district, of Asahan Regency then soil samples were isolated in the Laboratory until obtained a pure fungi isolates and antagonistic test and identified to the genus level. The results showed that fungi obtained in healthy plant rhizosphere were Mortierella, Humicola, Fusarium, Aspergillus, Gliocladium, Penicillium, Trichoderma and on the plant rhizosphare attacted white root disease obtained fungi Trichoderma, Humicola, and Phialophora. The results of antagonistic test showed that the highest inhibition was Mortierella that was 90%, then Trichoderma was 71.85%, Aspergillus 66.46% and the lowest was Humicola 27.78%.

Keanekaragaman Serangga Pada Tanaman Bawang Merah (Allium ascalonicum Linn) dengan Budidaya Secara Semi Organik dan Konvensional Di Kabupaten Simalungun Ivayona Astari; Suzanna Fitriany Sitepu; Lisnawita Lisnawita; Setia Sari Girsang
Jurnal Agroekoteknologi Vol 7, No 2,April (2019)
Publisher : Universitas Sumatera Utara

Serangan hama merupakan salah satu faktor yang mempengaruhi produktivitas bawang merah. Studi keanekaragaman serangga merupakan langkah awal dalam penanggulangan hama pada tanaman. Tujuan dari penelitian ini adalah untuk membandingkan keanekaragaman serangga pada tanaman bawang merah pada lahan dengan penanaman menggunakan sistem konvensional semi organik di Kabupaten Simalungun. Penelitian dilaksanakan di Desa Karang Sari dan Desa Karang Rejo, Kecamatan Gunung Maligas, Kabupaten Simalungun dan kegiatan identifikasi serangga dilaksanakan di Laboratorium Hama Tumbuhan, Fakultas Pertanian Universitas Sumatera Utara. Penelitian menggunakan metode survei, dilakukan pada lahan seluas 500. Pengamatan dilakukan sebanyak 7 kali, 1 kali pada saat persemaian, 1 kali sebelum transplanting ke lapangan, 3 kali pada masa vegetatif, dan 2 kali pada masa generatif. Pengambilan sampel dilakukan dengan menggunakan jaring serangga, perangkap kuning dan perangkap jatuh. Hasil penelitian menunjukkan bahwa terdapat 9 ordo serangga yang terdiri dari 18 famili di lahan semi organik, sedangkan di lahan konvensional terdapat 10 ordo yang terdiri dari 16 famili. Indeks keanekaragaman pada pertanaman secara semi organik sebesar 2,277 dan konvensional sebesar 2,332 menunjukkan keanekaragaman sedang. Indeks Kemerataan pada pertanaman secara semi organik sebesar 0,595 dan konvensional sebesar 0,581 menunjukkan kemerataan di kedua tempat termasuk tinggi. Tidak ada spesies serangga yang mendominasi di kedua tempat menunjukkan keanekaragaman yang tinggi.

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

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

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 AHMAD RAFIQI TANTAWI Aidatul Oktavianda Arie Ramadhina Arie Ramadhina Ary Hutama S Chornelius Karo-Karo Dani Sutanta Syafii Darma Bakti Eli Saputri Friska Erawati Sitepu Gevit R Tambunan Hasanuddin Hasanuddin Hasanudin Hasanudin irfansyah harahap irma aryani Ivayona Astari Lahmuddin Lubis Lisnawita Lisnawita Marjan Sinaga Maryani Cyccu Tobing Mena Uly Tarigan Mukhtar Iskandar Pinem Muklis Adi Putra Nugraha Pratama Dhana Rizki Trianno Sinaga Setia Sari Girsang Sri Endah Nurzannah Suzanna F Sitepu Suzanna Fitriany Sitepu, Suzanna Fitriany Syahrial Oemry Tetra Febryandi Sagala Yuan Cynthia Br. Simanjuntak Yuswani Pangestiningsih

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