Syahrial Oemry
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PENGUJIAN VIABILITAS Trichogramma spp. (Hymenoptera: Trichogrammatida PADA BEBERAPA TINGKATAN SUHU DAN LAMA WAKTU PENYIMPANAN DI LABORATORIUM Poibe Tinata Sitorus; Syahrial Oemry; Fatimah Zahara
Jurnal Agroekoteknologi Vol 1, No 1 (2012)
Publisher : Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (52.472 KB) | DOI: 10.32734/jaet.v1i1.665

Abstract

  ABSTRACT The viability test of Trichogramma spp. (Hymenoptera: Trichogrammatidae) on some of   the                       temperature level and depository time depth in the laboratory. Trichogramma spp. is egg parasit from lined stem borer pest (Chilo saccahariphagus) and shining stem borer pest (Chilo auricilius) which is the major pest of sugarcane. The aim of this research is to know the viability of Trichogramma spp. on some of the temperature level and depository time depth in the laboratory. This research used the Complete Randomized Design (CRD) 2 factorial with 12 treatments and 3 replications, T (Temperature) (10oC, 15oC, 20oC,), control (27oC) H (day) (2 days, 4 days, 6 days). The result of this research show that the long time of starter imago appearance found on T0H1 dan T0H2 (27o; 2,4 days) treatment for 0.71 hours and the latest found on T1H1 (10oC, 2 days) treatment for 4.17 hours. The fastest process of parasitic found in T0 (27oC) treatment for 0.71 days and the latest found in T2 (15oC, 2 days) treatment for 2.38 days. The highest presentation of the parasitic found T1H3 (10oC, 6 days) treatment of 97.33% and the lowest found in T0H1, T0 H2, T0 H3 (27oC, 2, 4, 6 days) for 0.71%. The highest total of the imago appearance in a line found in (T1H3 (10oC, 6 days), 35.59 imagoes, and the lowest found in T0H1, T0 H2, T0 H3 (27oC, 2, 4, 6 days) treatment  for 0.71 imagoes. Keywords: viability of Trichogramma spp., temperature, depository time depth. ABSTRAK Pengujian viabilitas Trichogramma spp. (hymenoptera: trichogrammatidae) pada beberapa tingkatan   suhu dan  lama waktu penyimpanan di laboratorium. Parasitoid Trichogramma spp. merupakan parasitoid telur dari hama penggerek batang bergaris (Chilo saccahariphagus) dan penggerek batang berkilat (Chilo auricilius) pada tanaman tebu. Penelitian ini bertujuan untuk mengetahui viabilitas Trichogramma spp. pada beberapa tingkatan suhu dan lama waktu penyimpanan di Laboratorium. Penelitian ini menggunakan Rancangan Acak lengkap (RAL) 2 faktorial dengan 12 perlakuan dengan tiga ulangan yaitu T (suhu) (10oC, 15oC, 20oC), kontrol (27oC) H (hari) (2 hari,4 hari, 6 hari). Hasil penelitian menunjukkan lama waktu munculnya imago starter terdapat pada perlakuan T0H1 dan T0H2 (27oC; 2, 4 hari) yaitu 0.71 jam dan yang paling lama pada perlakuan T1H1 (10oC, 2 hari) yaitu 4.17 jam. Lama proses parasitasi yang paling cepat terdapat pada T0 (27oC) 0.71 hari dan yang paling lama pada  T2 (15oC) yaitu 2.38 hari. Persentase parasitasi yang paling tinggi terdapat pada T1H3 (10oC, 6 hari) yaitu 97.33%, dan yang paling rendah pada T0H1, T0 H2, T0 H3 (27oC, 2, 4, 6 hari) yaitu 0.71%. Jumlah imago yang muncul per pias yang tertinggi terdapat pada perlakuan (T1H3 (10oC, 6 hari) yaitu 35.59 ekor, dan yang terendah pada perlakuan T0H1, T0 H2, T0 H3 (27oC, 2, 4, 6 hari) yaitu 0.71 ekor. Kata kunci: viabilitas Trichogramma spp., suhu, lama waktuABSTRACT The viability test of Trichogramma spp. (Hymenoptera: Trichogrammatidae) on some of   the temperature level and depository time depth in the laboratory. Trichogramma spp. is egg parasit from lined stem borer pest (Chilo saccahariphagus) and shining stem borer pest (Chilo auricilius) which is the major pest of sugarcane. The aim of this research is to know the viability of Trichogramma spp. on some of the temperature level and depository time depth in the laboratory. This research used the Complete Randomized Design (CRD) 2 factorial with 12 treatments and 3 replications, T (Temperature) (10oC, 15oC, 20oC,), control (27oC) H (day) (2 days, 4 days, 6 days). The result of this research show that the long time of starter imago appearance found on T0H1 dan T0H2 (27o; 2,4 days) treatment for 0.71 hours and the latest found on T1H1 (10oC, 2 days) treatment for 4.17 hours. The fastest process of parasitic found in T0 (27oC) treatment for 0.71 days and the latest found in T2 (15oC, 2 days) treatment for 2.38 days. The highest presentation of the parasitic found T1H3 (10oC, 6 days) treatment of 97.33% and the lowest found in T0H1, T0 H2, T0 H3 (27oC, 2, 4, 6 days) for 0.71%. The highest total of the imago appearance in a line found in (T1H3 (10oC, 6 days), 35.59 imagoes, and the lowest found in T0H1, T0 H2, T0 H3 (27oC, 2, 4, 6 days) treatment  for 0.71 imagoes. Keywords: viability of Trichogramma spp., temperature, depository time depth.
UJI EFEKTIFITAS LARUTAN KULIT JERUK MANIS DAN LARUTAN DAUN NIMBA UNTUK MENGENDALIKAN Spodoptera Litura F. (Lepidoptera: Noctuidae) PADA TANAMAN SAWI DI LAPANGAN Rustel Tarigan; Mena Uli Tarigan; Syahrial Oemry
Jurnal Agroekoteknologi Vol 1, No 1 (2012)
Publisher : Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (44.681 KB) | DOI: 10.32734/jaet.v1i1.667

Abstract

ABSTRACT Effectivity of solution sweet orange peel and solution of leaf neem for controlling of Spodoptera litura F. (Lepidoptera: Noctuidae) at planting mustard in field. Ulat grayak (S. litura) from ordo Lepidoptera and Famili Noctuidae is one of the pest important to plant mustard. The objectives of the research were to find out an effectivities of sweet orange peel and leaf neem as botany insecticide to control S. litura in plant mustard in field. Research conducted at the Faculty of Agriculture land of North Sumatra University , Medan. The Research uses non factorial randomized block design with 10 treatments and 3 replications. The results showed that the addition of doses of each solution lowers the intensity of S. litura and to increase number of plants mustard production.The highest percentage of the intensity of attacks on the control treatment for 57.07% and lowest in treatment of mixture sweet orange peel and leaf neem by 21.82 % .The highest in the mixture sweet orange peel and leaf neem percentage of production of 3.43 kg/plot and the lowest at control of0.77kg/plot. Keywords: Spodoptera litura F., insecticide botany, Brassica chinensis L.   ABSTRAK Uji efektifitas larutan kulit jeruk manis dan larutan daun nimba untuk mengendalikan Spodoptera litura F. (Lepidoptera: Noctuidae) pada tanaman sawi di lapangan. Ulat grayak (S. litura) dari ordo Lepidoptera dan Famili Noctuidae merupakan salah satu hama penting pada tanaman sawi. Penelitian bertujuan untuk mengetahui efektifitas kulit jeruk manis dan daun nimba sebagai insektisida nabati untuk mengendalikan S. litura pada tanaman sawi di lapangan. Penelitian dilaksanakan di lahan Fakultas Pertanian Universitas Sumatera Utara, Medan. Penelitian menggunakan rancangan acak kelompok non faktorial dengan 10 perlakuan dan 3 ulangan. Hasil penelitian menunjukkan bahwa penambahan dosis dari masing-masing larutan menurunkan intensitas serangan S. litura dan meningkatkan jumlah produksi tanaman sawi. Persentasi kerusakan tertinggi yaitu pada perlakuan kontrol sebesar 57,07 % dan terendah pada perlakuan campuran kulit jeruk manis dan daun nimba 75 gr/ltr air sebesar 21,82 % dan persentasi produksi tertinggi pada campuran kulit jeruk manis dan daun nimba 75 gr/ltr air sebesar 3,43 kg/plot dan terendah pada kontrol sebesar 0,77 kg/plot. Kata kunci: Spodoptera litura F., insektisida nabati, Brassica chinensis L.
Uji Efektivitas Suspensi Baculovirus oryctes dan Metarhizium anisopliae (Metch.) Sorokin Terhadap Brontispa longissima Gestro. (Coleoptera :Chrysomelidae) di Laboratorium Holong Erixon M; Syahrial Oemry; Fatimah Zahara
Jurnal Agroekoteknologi Vol 3, No 1 (2015)
Publisher : Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (277.401 KB) | DOI: 10.32734/jaet.v3i1.9372

Abstract

The objective of this research was to study the effectifity of suspension Baculovirus oryctes andMetarhizium anisopliae (Metch.) Sorokin to control Brontispa longissima Gestro.(Coleoptera : Chrysomelidae). The research was held at the laboratory of plant pest,Agroecotechnology Program Study, Agricultural Faculty, University of Sumatra Utara, Medan onApril to Mei 2014. This methode used Randomized Complete Design (RAL) of non Factorial thatconsist of 7 treatments and 4 replications. The research treatments were: 1. T0 : control(500 mL aquadest) 2. T1 : 40 ml B. oryctes / 500 mL aquadest 3. T2 : 50 ml B. oryctes / 500 mLaquadest 4. T3 : 60 mL B. oryctes / 500 mL aquadest 5. T4 : 40 gr M. anisopliae /500 mLaquadest 6. T5: 50 gr M. anisopliae / 500 mL aquadest 7. T6 : 60 gr M. anisopliae / 500 mLaquadest. The results showed that the highest percentage of mortality on T6(60 gr M. anisopliae / 500 mL aquadest) was about 95.00% and the lowest on T1(40 ml B. oryctes / 500 mL aquadest) was about 60.00%.Keywords : Effectifity, Baculovirus oryctes, Metarhizium anisopliae, Brontispa longissima
Potensi Bakteri Endofit dalam Meningkatkan Pertumbuhan Tanaman Tembakau yang Terinfeksi Nematoda Puru Akar (Meloidogyne spp.) R Surya Murthi; Lisnawita Lisnawita; Syahrial Oemry
Jurnal Agroekoteknologi Vol 4, No 1 (2016)
Publisher : Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (215.6 KB) | DOI: 10.32734/jaet.v4i1.12326

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Potensi Bakteri Endofit dalam Meningkatkan Pertumbuhan Tanaman Tembakau yang Terinfeksi Nematoda  Puru Akar (Meloidogyne spp.). Nematoda puru akar (Meloidogyne spp.) pada tanaman tembakau merupakan penyakit penting yang dihadapi oleh perkebunan tembakau di Indonesia. Beberapa teknik pengendalian telah dilakukan, seperti penggunaan nematisida, kultur teknis dan penambahan bahan organik namun belum efektif mengendalikan patogen ini. Pengendalian biologi dengan bakteri endofit merupakan alternatif pengendalian Meloidogyne spp. Penelitian  ini bertujuan untuk mendapatkan bakteri endofit asal akar nilam meningkatkan pertumbuhan tanaman tembakau yang terinfeksi nematoda  puru akar (Meloidogyne spp.). Penelitian ini dilaksanakan di Laboratorium Penyakit Tumbuhan Fakultas Pertanian Universitas Sumatera Utara pada  bulan Juli – Desember 2014. Penelitian ini menggunakan Rancangan Acak Lengkap nonfaktorial dengan perlakuan pemberian beberapa jenis bakteri endofit yaitu: Kontrol (diaplikasikan nematoda 500ekor/pot), Bacillus spp.1, Pseudomonas spp. dan Bacillus spp.2. Hasil penelitian menunjukan laju pertumbuhan dan pertambahan jumlah daun terbaik terdapat pada perlakuan Pseudomonas spp. sedangkan berat basah dan kering akar tertinggi terdapat pada tanaman yang diaplikasikan Bacillus spp 1. Kata kunci : Bacillus spp., Pseudomonas spp., Meloidogyne spp., tembakau.
Pengaruh Lama Inokulasi dan Ukuran Larva Chilo sacchariphagus Boj. (Lepidoptera: Crambidae) Untuk Perbanyakan Sturmiopsis inferens Towns. (Diptera: Techinidae) di Laboratorium citra maharani; maryani cyccu tobing; syahrial oemry
Jurnal Agroekoteknologi Vol 4, No 1 (2016)
Publisher : Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (165.928 KB) | DOI: 10.32734/jaet.v4i1.12329

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The objective of the research was to study the inoculation period and larvae size of Chilo sacchariphagus for mass rearing of Sturmiopsis inferens. The research was conducted  in laboratory of Sugarcane Reasearch and Devolopment Sei Semayang  Binjai, Medan, North Sumatera from September until October 2014 using a randomized complete design with two factors and three replications. The first factor was inoculation periods (5, 10, and 15 minutes) and the second factor was larvae sizes of  C. sacchariphagus (< 1.5, 1.5 - 2 and > 2 cm). The results showed that inoculation period and larvae size significantly effected the percentage of parasititation and total of pupa.  The highest percentage of parasititation (4,63 %) on inoculation period for 5 minutes with larvae size > 2 cm and the lowest (0.71 %) on inoculation period for 10 minutes with larvae size < 1.5 cm. The highest total of pupal (2.61 pupal) on inoculation period for 5 minutes with larvae size > 2 cm and the lowest (0.71 pupal) on inoculation period for 10 minutes with larvae size < 1.5 cm. The highest percentage of pupal  to become imago (92.5 %) on larvae size > 2 cm and the lowest (7.5 %) on larvae size < 1.5 cm  and sex ratio of male and female S. inferens is 1 : 1.2.
INVENTARISASI SERANGGA POLINATOR PADA TANAMAN SORGUM RATUN (Sorghum bicolor (L.) Moench) DI KECAMATAN RAMBUTAN KOTA TEBING TINGGI Sistanshia Chaumi Aulia Nisa; Amelia Zuliyanti Siregar; Syahrial Oemry
Agros Journal of Agriculture Science Vol 24, No 2 (2022): edisi Juli
Publisher : Fakultas Pertanian, Universitas Janabadra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37159/jpa.v24i2.1894

Abstract

Penelitian bertujuan untuk menginventarisasi serangga polinator pada pertanaman sorgum ratun di Kota Tebing Tinggi. Penelitian ini dilaksanakan di Link. IV Kel. Lalang, Kecamatan Rambutan, Kota Tebing Tinggi, Provinsi Sumatera Utara, dan kemudian dilanjutkan dengan identifikasi di Laboratorium Hama Fakultas Pertanian Universitas Sumatera Utara, Medan menggunakan metode purposive sampling dan dilaksanakan pada Mei 2021 hingga Oktober 2021. Tipe perangkap yang digunakan adalah perangkap jaring dan perangkap kuning dengan masingmasing perangkap memiliki 4 ulangan. Dari hasil penelitian ini, teridentifikasi serangga polinator terdapat 3 ordo (Hymenoptera, Lepidoptera, dan Diptera) yang terdiri dari 8 famili dan 13 Genus, dengan jumlah total serangga yang tertangkap adalah sebanyak 198 individu. Nilai INP tertinggi polinator yang teridentifikasi adalah 38,3%. Indeks keanekaragaman Shanon-Weiner (H’) 2,11 (kategori sedang). Nilai Indeks Kemerataan Jenis, yaitu 0,829 (kategori tinggi). Nilai Indeks Kekayaan Jenis, yaitu 2,269 (kategori rendah). Serangga polinator yang berhasil diinventarisasi adalah genus Xylocopa, Apis, Chalybion, Phimenes, Vespa, Austroscolia, Megascolia, Papilio, Junonia, Appias, Euthalia, Hypolimnas and Culex. Sorgum memiliki kandungan nutrisi yang tinggi, sehingga sangat berpotensi digunakan sebagai bahan pangan maupun pakan ternak alternatif.