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AGROEKOTEKNOLOGI

agroekoteknologi
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Published by Universitas Sumatera Utara

ISSN : 23376597 EISSN : - DOI : -

Core Subject : Agriculture,

Agriculture, Biological Sciences & Forestry

Jurnal AGROEKOTEKNOLOGI merupakan jurnal ilmiah yang diterbitkan secara online berisikan hasil-hasil penelitian tentang hama dan penyakit tumbuhan, agronomi, pemuliaan tanaman dan ilmu tanah

Arjuna Subject : -

Articles 943 Documents

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Daya Predasi Myopopone castaneae (Hymenoptera :Formicidae) terhadap Larva Oryctes rhinoceros L. (Coleoptera : Scarabaidae) di Laboratorium The predation of Myopopone castaneae (Hymenoptera : Formicidae) to larvae of Oryctes rhinoceros L. (Coleoptera: Scar Dhimas Junaedi; Darma Bakti; Fatimah Zahara
Jurnal Agroekoteknologi Vol 3, No 1 (2015)
Publisher : Universitas Sumatera Utara

The objective of this research was to determine the effectiveness of Myopopone castaneaeto consumption larvae of Oryctes rhinoceros in the laboratory. This research was conducted fromDecember 2013 to February 2014 with altitude ± 25 above sea level in the Laboratory of Plant Pest,Faculty of Agriculture, University of Sumatra Utara. This research used randomizedcompletely design with 2 factors and 3 replications. The first factor was number of My. castaneae(0, 15, 20, and 25) and the second factor was larva’s instar (1, 2, and 3). The result showed that thehighest percentage of larva mortality was applicated by 25 of My. castaneae to larvae instar 1 ofO. rhinoceros (100%) in 3 days and the lowest was applicated by 15 of My. castaneae to larva’sinstar 3 of O. rhinoceros (20%). The highest consumption ability of My. castaneae is treatment usedlarva's instar 1 (applicated by 25, 20, and 15 of My. castaneae) that can consumpt 4-5 larva'sinstar 1 in five days, and the lowest is with using larva's instar 3 (applicated by 15, 20, and 25 ofMy. castaneae) that only can consumpt 1-2 larva's instar 3 of O. rhinoceros.Keywords: predation capacity, Myopopone castaneae, Oryctes rhinoceros L.

Pengaruh Umur Parasitoid Xanthocampoplex sp. (Hymenoptera: Ichneumonidae) terhadap Jumlah Larva Chilo sacchariphagus Bojer (Lepidoptera: Crambidae) di Laboratorium Sari M. D. Panggabean; Maryani Cyccu Tobing; Lahmuddin Lubis
Jurnal Agroekoteknologi Vol 3, No 1 (2015)
Publisher : Universitas Sumatera Utara

This objective was to study the effect of the ages of Xanthocampoplex sp. on the number of larvaeC. sacchariphagus. The research was held at Laboratory of Sugarcane Research and DevelopmentSei Semayang, Binjai, North Sumatera from November 2013 until January 2014. The method usedRandomized Complete Design with two factors and three replications. The first factor was imago’sage (0, 1, 2, 3, 4, 5, 6, 7, 8, 9 and 10 days) and the second factor was number of host (1, 3, 5 larvaeC. sacchariphagus). All parasitoid larvae appear from C. saccharipaghus was female. The highestpercentage parasitation (35.55%) on age 7 days Xanthocampoplex sp. and the lowest (0.00%) on1, 9, and 10 days Xanthocampoplex sp. The highest number of parasitoid was 1.00 and the lowestwas 0.00 and the highest number of host was 0.70 in number of host was 5 larvaeC. sacchariphagus and the lowest was 0.06 in 1 larvae C. sacchariphagus.Keywords :Xanthocampoplex sp., parasititation, C. sacchariphagus.

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

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

Aplikasi Pupuk Area dan Pupuk Kandang Kambing Untuk Meningkatkan N total Tanah pada Inceptisol Kwala Bekala dan Kaitannya Trhadap Pertumbuhan Jagung (Zea mays L.) Arfan Dwi Putra; MMB Damanik; Hamidan Hanum
Jurnal Agroekoteknologi Vol 3, No 1 (2015)
Publisher : Universitas Sumatera Utara

This aims of research was study about the effect of application of urea fertilizer and goat manure toimprove N-total on Inceptisol Kwala Bekala and its relation to the growth of maize. The researchwas conducted in the screen house and Chemical and Soil Fertility Laboratory, Faculty ofAgriculture, University of North Sumatra .This study used randomized block designed whichconsists of 2 factors and 3 replications. The first factor urea which consists of 4 levels : 1. U0 (0kg/ha), 2. U1 (100 kg/ha), 3. U2 (200 kg/ha), 4. U3 (300 kg/ha) and the second factor of goatmanure: 1. K0 (0 tons/ha), 2. K1 (10 tons/ha), 3. K2 (20 tons/ha), 4. K3 (30 tons/ha).The resultsshowed urea fertilizer application increased significantly of plant height, the best treatment at 100kg/ha. Application of goat manure increased significantly soil C-organic, N-uptake, plant height,dry weight and dry root plant, the best treatment at 30 tons/ha. Interaction of urea fertilizerapplication and goat manure increased the dry weight of shoot and N-uptake. The best treatmentwas the application 100 kg/ha urea and goat manure 30 tons/ha.Keywords : urea fertilizer , goat manure , N-total.

Survei Pengaruh Erupsi Gunung Sinabung terhadap Penyakit Hawar Daun (Phytophthora infestans) pada Tanaman Kentang (Solanum tuberosum Linn.) di Kecamatan Simpang Empat Febepriskila Br Tarigan; Yuswani Pangestiningasih; Lahmuddin Lubis
Jurnal Agroekoteknologi Vol 3, No 1 (2015)
Publisher : Universitas Sumatera Utara

The aim of experiment was to find out the effect of mount Sinabung on leaf blight disease(Phytophthora infestans) disease on potatoes (Solanum tuberosum Linn.). The research was held atSimpang Empat districts, Karo distric, North Sumatera from March until May 2014. This researchwas conducted using survey method by simple linear regression quantitative analyzis, ie regressionof the number of eruption regression and incidence of leaf blight disease percentage, regressionbetween the control after occurres eruption with incidence of leaf blight disease and regression leafblight disease between control after occurres eruption with production of potatoes. The resultshowed that the number of eruption did have significant relationship with incidence of leaf blightdisease percentage, and the control after occurance of the eruption did have significant relation withincidence of disease and production of potatoes in Simpang Empat distric. The highest incidence ofdisease in Torong village with 1.6% and the lowest were showed in Bilan Baru village with 1.1%.The highest potatoes production was in Bulan Baru village with 9.4 Ton/Ha and the lowestproduction was in Ujung village with 5.4 Ton/Ha.Keywords : potatoes, leaf blight disease and Sinabung eruption

Pengaruh Ukuran Pupa Beberapa Penggerek Batang Tebu terhadap Jumlah Populasi Tetrastichus sp. (Hymenoptera : Eulophidae) di Laboratorium Julian Simatupang; Syahrial Oemry; Fatimah Zahara
Jurnal Agroekoteknologi Vol 3, No 1 (2015)
Publisher : Universitas Sumatera Utara

The objective of this research was to study the effect of some pupae size of sugarcane stem boreron the Tetrastichus sp. population in laboratory. Complete randomized complete design with twofactors, i.e Tetrastichus sp. population ( 4, 5, and 6 pair ), and PBR, PBB, and PBK pupae size(pupae size of PBR : 2-2.9 cm, 3-3.4 cm and ≥ 3.5 cm, pupae size of PBB : 0.5-0.9 cm, 1-1.4 cmand ≥ 1.5 cm, pupae size of PBK : 0.5-0.9 cm, 1-1.4 cm and ≥ 1.5 cm) and three replications wasused to conducting this research at Laboratory of Sugarcane Research and Development SeiSemayang, Binjai, Medan, North of Sumatera from February until July 2013. The results showedthat pupae size of PBR, PBB and PBK significantly affected the number of emerging parasitoidadult and sex ratio. The highest number of parasitoid adult (19.84 adult) was founded at pupae sizeof PBR ≥ 3.5 cm treatment, meanwhile the lowest (0.94 adult) was founded at pupae size of PBK0.5-0.9 cm treatment. Sex ratio of male and female was 1 : 3.08.Keywords : Parasitoid, Sugarcane stem borer, Tetrastichus sp.

Yonathan Alfonso Situmorang, Darma Bakti*, Hasanuddin Yonathan Alfonso Situmorang; Darma Bakti; Hasanudin Hasanuddin
Jurnal Agroekoteknologi Vol 3, No 1 (2015)
Publisher : Universitas Sumatera Utara

Metarhizium able to control variable growth phase of insect, such as egg, larvae, pupae, and adult.Effect of fungicide on Metarhizium is rarely reported. This research aims to determine impact offungicide to fungal colony growth of Metarhizium anisopliae (Metch) Sorokin. Conducted at PlantPathology Laboratory, Agriculture Faculty, University of North Sumatera, from August untilNovember 2013. Arranged non-factorial completely randomized design with twenty one treatmentsand three replications. Petridish contained 1 ml fungicide + 9 ml PDA, used one point technic,incubated at room temperature. The result showed that fungicide effect toward fungal colonygrowth of Metarhizium anisopliae (Metch) Sorokin. Highest fungal colony diameter was on 1.000ppm Mankozeb 80 WP which reached 7.67 cm, meanwhile lowest fungal colony diameter was on20.000 ppm Tebukonazol 25 WP which reached 0.88 cm. Highest fungal colony extensive was on1.000 ppm Mankozeb 80 WP which reached 45.23 cm2, meanwhile the lowest fungal colonyextensive was on 20.000 ppm Tebukonazol 25 WP which reached 0.53 cm2.Keywords : Metarhizium anisopliae, fungicide, biological agent.

Pendugaan Erosi Aktual Berdasarkan Metode USLE Melalui Pendekatan Vegetasi, Kemiringan Lereng dan Erodibilitas di Hulu Sub DAS Padang Imam Bukhari; Kemala Sari Lubis; Alida Lubis
Jurnal Agroekoteknologi Vol 3, No 1 (2015)
Publisher : Universitas Sumatera Utara

Erosion strongly influenced by vegetation, slope and erodibility. USLE method used to predictactual erosion. Vegetation factor, slope and erodibility used to examine the relationship of the actualerosion and analyzed with multivariate. Soil sampling in the upstream Sub DAS Padang at Rayadistrict, Simalungun based on vegetation, slope and erodibility with a sample size of the 33 samplepoints. The results showed that the highest erosion at 7.177,84 tons.ha-1.year-1 on the non-vegetationwith criteria levels classified as very severe erosion hazard and lowest erosion of 24,30 tons.ha-1.year-1 on the forest vegetation protected by the criteria of erosion potential as very mild.Keywords : Soil erosion, USLE method, DAS Padang

Pengujian Berbagai Jenis Bahan Aktif Terhadap Penyakit Jamur Akar Putih (JAP) (Rigidoporus microporus (Swartz: Fr.)) di Areal Tanpa Olah Tanah (TOT) Lydia Manurung; Lahmuddin Lubis; Marheni Marheni; Cici Indriani Dalimunthe
Jurnal Agroekoteknologi Vol 3, No 1 (2015)
Publisher : Universitas Sumatera Utara

The objective of the research was to test of various types of active ingredient to White Root Disease(WRD) (Rigidoporus microporus (Swartz: Fr)) Without Tillage Area (WTA). This research wasconducted in the experimental garden of Sungei Putih, Deli Serdang with a height of ± 80 m aslfrom March 2014 until June 2014. The method used was Randomized Blok Design non factorial in3 replications. The factor was used active ingredients the pathogens aktif (triadimefon,Trichoderma sp, endophytic bacteria, bangun-bangun leaf extract, liquid smoke and water.Parameters observed were attack intensity, stem diameter and plant height. The results showed thatdifferent types of active ingredients very significant effect on the attack intensity and plant heightbut significant effect in stem diameter. The best result to suppress the intensity of theA (triadimefon) of 0% and C (endophytic bacteria) of 1.67%. The best result to increase in thediameter and plant height on B (Trichoderma sp) of 57.05% and 72.14%.Key words: active ingredients, Rigidoporus microporus, rubber, without tillage area

Kajian Awal : Respon Eksplan Nodus dalam Inisiasi Tunas Mikro Tanaman Karet (Hevea brasiliensis Muell. Arg.) dalam Medium WPM Lidya Sundari; Luthfi A. M. Siregar; Diana Sofiah Hanafiah
Jurnal Agroekoteknologi Vol 3, No 1 (2015)
Publisher : Universitas Sumatera Utara

The objective of the research was to determine the best medium for micro shoot induction of rubbertree from node explant in WPM medium with combination of Benzylamino purine (BAP) andNaphthalane-acetic acid (NAA). The research was conducted in Microcutting Laboratory,PT. Perkebunan Nusantara III Tebing Tinggi Sumatera Utara Medan from Februari 2014-Juni 2014,used complete random design with sixteen treathments and fifteen replications.The result showedthat combination BAP and NAA in WPM gave significantly different on percent of explant formingshoot. Meanwhile, for parameter life explant combination concentrated BAP and NAA showed nosignificantly different.Keywords: rubber, micro shoot, BAP, NAA, WPM

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