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DAYA PARASITASI Tetrastichus sp. (Hymenoptera : Eulophidae) PADA PUPA Phragmatoecia castaneae (Lepidoptera : Cossidae) DI LABORATORIUM Dewi L Sidauruk; Maryani Cyccu Tobing; Mena Uly Tarigan
Jurnal Agroekoteknologi Vol 1, No 2 (2013)
Publisher : Universitas Sumatera Utara

The sugarcane stem borer Phragmatoecia castaneae (Lepidoptera : Cossidae) is a key pest on sugarcane crop in North and West Sumatera. The objective of this research was to study the ability of parasitoid Tetrastichus sp. (Hymenoptera : Eulophidae) on pupa Ph. castaneae H. (Lepidoptera : Cossidae) in the laboratory. This research was carried out at Central Research and Development of Sugarcane Crop Sei Semayang PTPN II Medan from May to July 2012. The method of this research used Randomized Complete Design factorial with 2 factors, the first factor is number of parasitoid (0, 4, 5, 6, and 7 pairs) and the second factor is number of Ph. castaneae (1, 3, 5, 7, and 9 pupa) with three replications. The results showed that the highest percentage parasitisation (100%) on pupa Ph. castaneae was found in treatment 1 pupa with 5, 6, 7 pairs Tetrastichus sp. and the lowest percentage (18,50%) on 9 pupa with 4 pairs Tetrastichus sp. This parasitoid need 10-15 seconds into do copulation. Females of Tetrastichus sp. need 20-25 minutes to put egg into its host. The fastest symptoms in the treatment 1 pupa on 3,47 days and 7 pairs Tetrastichus sp. on 4,73 days, and the lowest in the treatment 9 pupa is 4,47 days. The sex ratio of male and female was 1:3,3. Key words : Phragmatoecia castaneae, Tetrastichus sp, ability of parasitoid.

SURVEI FAKTOR KULTUR TEKNIS TERHADAP PERKEMBANGAN POPULASI HAMA PENGGEREK BUAH KOPI Hyphotenemus hampei Ferr (Coleoptera:Scolytidae). DI KABUPATEN SIMALUNGUN Fitri Ace Samosir; Mena Uly Tarigan; Syarial oemry Syarial oemry
Jurnal Agroekoteknologi Vol 1, No 4 (2013)
Publisher : Universitas Sumatera Utara

Fitri Ace Samosir, "Survey of Progress Against Technical Factors Population Culture Pest Fruit Borer CoffeeHyphotenemus hampei Ferr. (Coleoptera: Scolytidae) in the District Simalungun " under the guidance of MenaUly Tarigan and Syarial Oemry. This research intends to determine the population of the coffee fruit borer H.hampei in some coffee plantations in the Kingdom Simalungun are Raya District, Pane District, Purba District.This research used quantitative analysis of the correlation Population Correlation H. hampei ( X) with theintensity of the attacks on coffee plants ( Y) and correlation with the population of the coffee plantmaintenance H. hampei. The results showed that there were differences in population and the intensity of thecoffee fruit borer attack H. hampei in the district of Simalungun due to differences in height. Population of H.hampei in the Raya District is 148.83 pest, in the Pane District pests as much as 145.20 and 24.10 in the districtof Purba as pests. Intensity of attacks in the Raya District H.hampei at 83.50%, in the Pane District at 88.83%,and in the Purba District of 26.83%.Keywords: Coffee plant and Hyphotenemus hampei Ferr.

INDEKS KEANEKARAGAMAN JENIS SERANGGA PADA PERTANAMAN KELAPA SAWIT (Elaeis guineensis Jacq.) DI KEBUN HELVETIA PT. PERKEBUNAN NUSANTARA II Gevit R Tambunan; Mena Uly Tarigan; Lisnawita Lisnawita
Jurnal Agroekoteknologi Vol 1, No 4 (2013)
Publisher : Universitas Sumatera Utara

Insect Species Diversity Index in Oil Palm (Elaeis guineensis Jacq.) Planting in Helvetia Estate, PT.Perkebunan Nusantara II. The purpose of this study was to find out the insect species diversity index inoil palm (Elaeis guineensis Jacq.) planting in Helvetia Estate, PT. Perkebunan Nusantara II. This surveystudy was conducted from June to August 2101 in Helvetia Estate, PT. Perkebunan Nusantara II, DeliSerdang District with the altitude of ± 23 meters above sea level. The insects were caught by busingsweep net, pit fall trap, and light trap, then they were observed at the Plant Pest and Disease Laboratory,Faculty of Agriculture, University of Sumatera Utara. The result of this study showed that 298 insectsconsisting of 9 orders and 29 families were trapped and caught in the oil palm plantation area which hasproduced and 367 insects consisting of 10 orders and 34 families were trapped and caught in the oil palmplantation area which has not produced.The value of Insect Species Diversity Index according to thehighest Shanon-Weiner (H’) in the oil palm plantation area which has produced is 2.9276 (adequate) andin the oil palm plantation area which has not produced is 2.9848 (adequate). While the value ofSorensen’s Quotien of Similarity for the kinds of insects in both areas is 79.365%.Keywords: Diversity index, oil palm, insect

TINGKAT SERANGAN ULAT KANTONG Metisa plana Walker (Lepidoptera: Psychidae) TERHADAP UMUR TANAMAN KELAPA SAWIT (Elaeis guineensis Jacq.) DI KEBUN MATAPAO PT. SOCFIN INDONESIA Nugraha Sembiring Nugraha Sembiring; Mena Uly Tarigan; Lisnawit Lisnawit
Jurnal Agroekoteknologi Vol 1, No 4 (2013)
Publisher : Universitas Sumatera Utara

The attack rate of bagworms Metisa plana Walker (Lepidoptera: Psychidae) on the age of oil palm(Elaeis guineensis Jacq.) at Matapao Plantation, PT Socfin Indonesia. Under the supervision ofMena Uly Tarigan as the chairperson and Lisnawita as the member. The aim of the research was toknow the attack rate of bagworms (Metisa plana Walker) on the age of oil palm at the planting areaof TBM (pre-producing plant) and TM (post-producing plant). The research was conducted atMatapao Plantation, PT Socfin Indonesia, Teluk Mengkudu Subistrict, Serdang Bedagai Districtwith the altitude of ± 20 meters from the sea level. The research used a survey method withdiagonal samples. The results of the research showed that the attack rate of bagworms was higheron the TBM than on TM. The highest number of pests was found at block 27 in the planting year of2011 with 119 pests, while the highest rate of attack by bagworms (19.758%) was found at block 28in the planting year of 2009. The highest attack of bagworms was found in sample 50 at block 27 inthe planting year of 2011 with 15 pests in each frond. The highest intensity of bagworms’ attack(50%) was in sample 50 at block 27 in the planting year of 201, and it was categorized as amoderate attack.Keywords: bagworms Metisa plana, oil palm, the age of oil palm

PENGGUNAAN PERANGKAP KUNING BERDASARKAN BENTUK DAN BEBERAPA KETINGGIAN PERANGKAP TERHADAP HAMA Liriomyza spp. (Diptera: Agromyzidae) PADA TANAMANBAWANG MERAH (Allium ascalonicum L.) Rio A A Sinubulan; Darma Bakti; Mena Uly Tarigan
Jurnal Agroekoteknologi Vol 1, No 4 (2013)
Publisher : Universitas Sumatera Utara

Yellow traps is one of mechanical control leaf miner (Liriomyza spp) on shallolt(Allium ascalonicum (L.). This study was conducted in Desa Batukarng located at the altitude of about1,100 meters above sea level.The purpose of this study was to fine out the influence of the use severalforms and altitude of yellow. Trap on Liriomiza spp ( leaf-slitting fly) as the pest on shallot(Allium ascalonicum (L.). This study employed the Non-Factorilal Group Random Design Methodwith 7 treatments and 3 repetitions by using yellow square and cylindrical trap set at the latitude of10,30,50 cm above the ground. The result of this study showed that the average number of pets trappedhad a significant influence on the population of Liriomyza spp ( leaf-slitting fly) at shallot plantingground of square treatment with height of 10 cm. The form and height of trap had a very significantinfluence on percentage of Liriomyza spp attack to the square treatment with the height of 10 cm.Based on the result of the study, it is found out the square trap with the height of 10 cm is moreeffective to control the population of Liriomyza spp.Key words: shallot , leaf- slitting, yellow trap.

PENGARUH PERANGKAP WARNA BERPEREKAT TERHADAP HAMA CAPSIDE (Cyrtopeltis tenuis Reut) (Hemiptera : Miridae) PADA TANAMAN TEMBAKAU (Nicotiana tabacum L.) Stevi Windy Sihombing; Yuswani Pangestiningsih; Mena Uly Tarigan
Jurnal Agroekoteknologi Vol 1, No 4 (2013)
Publisher : Universitas Sumatera Utara

The influence of adhesive colored trap on capside pest (Cyrtopeltis tenuis Reut.)(Hemiptera:Miridae) in tobacco plant (Nicotiana tabacum L.). The is research was to find out theeffectiveness of the adhesive colored trap on capside pest (Cyrtopeltis tenuis Reut.)(Hemiptera:Miridae) in tobacco plant (Nicotiana tabacum L.) in the field. The purpose of this studyconducted at Kelambir V Helvetia Estate of PTPN II from May to June 2012. The methods used inthis study were Non-Factorial Group Randomized Design (RAK) with 7 treatment, and 3replications: W0 (controlled/ transparent), W1 (green colored traps), W2 (light red colored Trap), W3(white colored traps) W4 (yellow colored traps) W5 (blue colored Traps), W6 (red colored traps). Theresult of this study showed that the highest pest population caught by yellow colored trap was 53.00and the lowest pest population was 33.33 which were caught by light red colored trap. The lowestattact intencity percentage was 28.53% found in the yellow colored trap, and the highest was34.86% found in the blue colored trap.Keywords: Cyrtopeltis tenuis Reut, Colored Trap, Nicotiana tabacum L.

UJI EFEKTIFITAS Beauveria basianna dan Bacillus thuringiensis TERHADAP ULAT API (Setothosea asigna Eeck, Lepidoptera, Limacodidae) DI LABORATORIUM Boy Tarigan Boy Tarigan; Syahrial Syahrial; Mena Uly Tarigan
Jurnal Agroekoteknologi Vol 1, No 4 (2013)
Publisher : Universitas Sumatera Utara

ABSTRACTPalm oil tree is the most productif than the other nabaty oil plant. Setothosea is the primaryleaf eaten on palm oil tree. Test Effectiveness of Bacillus thuringiensis and Beauveriabasianna Caterpillars Against Fire Setothosea asigna Eecke in laboratory. The research wasconducted at the Laboratory of Plant Pests Faculty of Agriculture, University of NorthSumatra, Medan with altitude ± 32 meters above sea level. The research method used is nonCompletely Randomized Design factorial. The parameters in the observed percentagemortality of larvae of the caterpillar is Setothosea asigna fire. The results show thepercentage of mortality of silkworm larvae using Beauveria basianna flames were highest intreatment by 100% I3 is the observation of the IV, percentage mortality of silkworm larvaeusing Bacillus thuringiensis flames were highest in I6 treatment was 100% in the observationof the IV.Keywords : test effectiveness,Caterpillars Against Fire, Laboratory

PENGARUH BEBERAPA JENIS PESTISIDA NABATI UNTUK MENGENDALIKAN ULAT GRAYAK Spodoptera litura F. (Lepidoptera: Noctuidae) PADA TANAMAN TEMBAKAU DELI DI LAPANGAN Resfin Butarbutar; Maryani Cyccu Tobing; Mena Uly Tarigan
Jurnal Agroekoteknologi Vol 1, No 4 (2013)
Publisher : Universitas Sumatera Utara

The influence of some botanical pesticides for handling grayak caterpillarSpodoptera litura F.(Lepidoptera: Noctuidae) on Deli tobacco. Grayak caterpillar (a kind ofcutworm) is one of an important pest in Deli Tobacco plant which can reduce production. Thepurpose of the research was to know the effectiveness of gadung storage root, babadotan, and castoroil stones with correct dosage in handling grayak caterpillar (S. litura) on Deli tobacco plants. Theresearch was conducted at Institute of Deli Tobacco PTPN II Sampali Medan, from November,2011 until January, 2012. The research used Randomized Block Design (RBD) design of non-factorwhich comprised ten treatments with three control repetitions: the solution of castor oil stones (40,80, and 120 g/l of water), the solution of babadotan (40, 80, and 120 g/l of water), and the solutionof gadung storage root (40, 80, and 120 g/l of water). The result of the research showed that thetreatment of the solution of gadung storage root with the dosage of 120g/l of water was the mosteffective with the lowest percentage of damage intencity (30.00%), the highest percentage of larvamortality (88.33%), and the highest percentage of plant production (11.22g/plot). The ineffectivetreatment was the control treatment with the highest percentage of damage intencity (49.00%), thelowest percentage of larva mortality (1.79%), and the lowest percentage of plant production(4.53g/plot).Keywords: Deli tobacco, botanical pesticides, Spodoptera litura

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