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Journal : AGROEKOTEKNOLOGI

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.
Preferences Test of Brown Lady Bug Riptortus linearis Fabr. (Hemiptera : Alydidae) on Soybeans (Glycine max L.), Greenbeans (Vigna radiata L.) and Orok-orok (Crotolaria pallida Aiton.) in Screenhouse ricky arbiansyah; Marheni Sembiring; Fatimah Zahara
Jurnal Agroekoteknologi Vol 4, No 4 (2016)
Publisher : Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (346.567 KB) | DOI: 10.32734/jaet.v4i4.13578

Abstract

The objective of the research was to know the preferences food of brown lady bug               (R. linearis) on the pod of soybeans, greenbeans and orok-orok in Screenhouse. This research was conducted in Pest Laboratory and Screenhouse of the Agriculture Faculty, University of Sumatera Utara (±25 m asl) from March until August 2015. This research was using non-factorial Randomized Block Design with 3 treatments, which are  soybeans, greenbeans and orok-orok with 9 replications. The result of this research showed that the pest R.linearis higher attacks on soybeans than greanbeans and orok-orok. The highest result in imago population of R. linearis was showed on soybeans (7.00), then on greenbeans (3.78), and orok-orok (1.22). The highest result in attacked pod percentage of R. linearis was showed on soybeans (81.88%), greenbeans (57.24%), and orok-orok (20.76%).
Pathogenicity of Some Entomophatogen’s Fungus (Lecanicillium lecanii, Metarhizium anisopliae, and Beauveria bassiana) to Aphis glycines on Soybean riri widariyanto; Mukhtar Iskandar Pinem; Fatimah Zahara
Jurnal Agroekoteknologi Vol 5, No 1 (2017)
Publisher : Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (425.108 KB) | DOI: 10.32734/jaet.v5i1.14068

Abstract

Soybean aphids (A. glycines) are the important pests and major vector virus SMV(Soybean Mosaic Virus) on soybeans. Control techniques which performed by the used of insectisides is not effective and leaves residue on the environment. Entomophatogen’s fungus is a safe alternative control for the environment. This research isaimed to determine the effectiveness of entomopatogen’s fungus (L. lecanii, M. anisopliae, and B. bassiana) to A. glycines on soybean in the field and carried out at experimental field of Faculty of Agriculture of University of Sumatera Utara, from December 2015 until Februari 2016. It used non factorial randomized block design by treatment : Control (Fourth instar of A. glycines without treatment entomopathogen), P1 (Second instar of A. glycines + L. lecanii), P2 (Second instar of A. glycines + B. bassiana), P3 (Second instar of A. glycines + M. anisopliae), P4 (Fourth instar ofA. glycines + L. lecanii), P5 (Fourth instar of A. glycines +B. bassiana), P6 (Fourt instar of A. glycines + M. anisopliae).The results showed thatL. lecanii and M. anisopliaesignificantly effective to reduce A. glycines population with high mortality and fast death time. The highest mortality (90%) is P4 treatment whereas the lowest mortality (37,5%) at P5 treatment. The fastest death time (5 day) is P6 treatment whereasthe longest death time(6,4 day) at P5treatment.
Evaluation of Rat's Attack (Rattus argentiventer Robb & Kloss) After Release of Owl (Tyto alba) in Deli Serdang Ema Rosalina Sipayung; Suzanna Fitriany Sitepu; Fatimah Zahara
Jurnal Agroekoteknologi Vol 6, No 2, April (2018)
Publisher : Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (392.258 KB) | DOI: 10.32734/jaet.v6i2, April.18041

Abstract

Rat is the important rice pests. Damageon rice crops caused by rat's attack in Indonesia reached a loss of 15-20% every year. This research aims to find out the rat's attack after release of owls. This research was conducted in Desa Sidodadi Ramunia and Desa Baru Deli Serdang with the distance about 22 km. This research was conducted   from May until December 2016.This research  used a survey method. Determination of research areas with purposive sampling method.Determination sample area using diagonal sampling method.Analyzed using Spearman's rank. The results show that the  active rat's nest in Desa Baru is more than Sidodadi Ramunia, it was on age 40 days after planting (hst) in Desa baru there are 18 active nest while in Desa Sidodadi Ramunia none active rat's nest. The highest percentage of attacks was found in Desa Baru with moderate category (27.5%) , and the lowest in Desa Sidodadi Ramunia (0%). Thehighest production was   in Desa Sidodadi Ramunia (5.71 tons/ha)and  the lowest production was inDesa Baru (3.11 tons/ha). Correlation result showed that the corelation value of the active rat's nest with the percentage of rat's attackis 0.917,  correlation value of amountowl with active rat's nest is  - 0.928,  correlation value amount of owl with the percentage of rat's attack - 0.866 and correlation value offarmer's perception to controling rat's attack with crop production is 0.810.Keywords: Rattus argentiventer, rat's nest,Tyto alba