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All Journal AGROEKOTEKNOLOGI

Lahmuddin Lubis

Universitas Sumatera Utara

Author-ID : 2980605

Agriculture, Biological Sciences & Forestry

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UJI DOSIS DAN CARA APLIKASI BIOFUNGISIDA Bacillus sp. TERHADAP PENYAKIT JAMUR AKAR PUTIH (Rigidoporus lignosus) PADA TANAMAN KARET DI PEMBIBITAN Benny Benny; Lahmuddin Lubis; Syahrial Oemry
Jurnal Agroekoteknologi Vol 1, No 2 (2013)
Publisher : Universitas Sumatera Utara

Dose Test and Application Ways Biofungiside Bacillus sp. Against White Root Fungi(Rigidoporus lignosus) on Rubber of Plants in the Nursery. This study aims to determine the effectof dose and ways application biofungiside with of Bacillus sp. against white root fungi(Rigidoporus lignosus) on rubber of plants in the nursery, as well as determine the effect of thewhite root fungi disease on the bud tall of rubber stump. The research was conducted usingRandomized Block Design (RAK) factorial consisting of two factors and 4 replications. The firstfactor, namely P0: control, P1: 20ml/1 liter water, P2: 30ml/1 liter water, P3: 40ml/1 liter water andthe second factor A1 (spraying) and A2 (deeping). The result showed the dose treatment containedthe highest intencity of the attacks on the P0 of 88,54% and lowest in P3 at 20,83%. Waysapplication treatment intensity of the attacks on the A1 of 35,94% and A2 at 54,69%. Interactionsof dose and ways application of the highest intensity of attacks are on P0A2 of 89,59% and lowestin P3A1 at 6,25%. The highest bud tall on dose treatments contained in P3 of 17,78 cm, the lowestin the P0 of 3,52 cm. Ways application treatment in A1 of 14,78 cm and A2 of 9,87 cm.Interactions in the bud tall of dose and ways application was highest in P3A1 of 21,04 cm, thelowest in P0A2 of 3,00 cm.

UJI EFEKTIVITAS BEBERAPA INSEKTISIDA NABATI UNTUK MENGENDALIKAN ULAT GRAYAK (Spodoptera litura F.) (Lepidoptera : Noctuidae) DI LABORATORIUM Mutiah Sari; Lahmuddin Lubis; Yuswani Yuswani Pangestiningsih
Jurnal Agroekoteknologi Vol 1, No 3 (2013)
Publisher : Universitas Sumatera Utara

This Research was to study the effectiveness of some botanical insecticides in controling S. litura.This Research was done in Laboratory of Plant Pest, Faculty of Agriculture, University of NorthSumatera, Medan from September to October 2012. The method of this research was CompletelyRandomized Design Non Factorial with nine treatments. P0 (control), P1 (alamanda 250 gr / litre),P2 (alamanda 500 gr / litre), P3 (babadotan 250 gr / litre), P4 (babadotan 500 gr / litre), P5(kamboja 250 gr / litre), P6 (kamboja 500 gr / litre), P7 (mengkudu 250 gr / litre), P8 (mengkudu500 gr / litre) with two replications. The result showed that the most effective percentage mortalitywas found in treatment P4 (babadotan 500 gr / litre) (100%), followed by P2 (alamanda 500 gr /litre) (85%), P3 (babadotan 250 gr / litre) (80%), P6 (kamboja 500 gr / litre) dan P8 (mengkudu 500gr / litre) (75%) and less effective was found in P1(alamanda 250 gr / litre) and P5 (kamboja 250 gr/ litre) (45% and 50%). The most effective percentage of Forming pupae was found in P4(babadotan 500 gr / litre) (0%), followed by P2 (alamanda 500 gr / litre) and P3 (babadotan 250 gr /litre) (15% and 20%), and less effective at P1(alamanda 250 gr / litre) and P5 (kamboja 250 gr /litre) (55% and 50%), followed by P7 (mengkudu 250 gr / litre) (45%).

PENGGUNAAN JAMUR ANTAGONIS Trichoderma sp. dan Gliocladium sp. UNTUK MENGENDALIKAN PENYAKIT LAYU FUSARIUM PADA TANAMAN BAWANG MERAH (Allium ascalonicum L.) Arie Ramadhina Arie Ramadhina; Lisnawita Lisnawita; Lahmuddin Lubis
Jurnal Agroekoteknologi Vol 1, No 3 (2013)
Publisher : Universitas Sumatera Utara

The use of antagonism fungus of Trichoderma sp. and Gliocladium sp. for controlling wilt(Fusarium oxysporum) in red onion plants. The aim of the research was to know the effectiviness ofantagonism fungus of Trichoderma sp. and Gliocladium sp. in controlling wilt in red onion plants.The research used non-factorial RAK (random group design) with eight treatments: control, 10grams of F. oxysporum, 12 grams of Trichoderma sp., 18 grams of Trichoderma sp., 24 grams ofTrichoderma sp., and 12 grams of Gliocladium sp., 18 grams of Gliocladium sp., 24 grams ofGliocladium sp., and three repetitions. The result showed that the worst-highest disease was incontrol with 10 grams of F. oxysporum (2.60%) and the lowest disease was in control, 18 grams ofTrichoderma sp., 24 grams of Trichoderma sp., 18 grams of Gliocladium sp., and 24 grams ofGliocladium sp. (0.71%). The accident of the highest disease was in 10 grams of F. oxysporum(5.01%) and the lowest was in control, 18 grams of Trichoderma sp., 24 grams of Trichoderma sp.,18 grams of Gliocladium sp., and 24 grams of Gliocladium sp. (0.71%). The largest number ofleaves was in 24 grams of Trichoderma sp. (36 leaves), and the smallest was in 10 grams of F.oxysporum (29 leaves). The highest plants was in 24 grams of Gliocladium sp. (40.20 cm) and thelowest in 10 grams of F. oxysporum (37.26 cm). The largest number of F. oxysporum colonies in 10grams of F. oxysporum (8.86%). The highest production was in 24 grams of Trichoderma sp. (2.34tons/ha) and the lowest in 10 grams of F. oxysporum (1.56 tons/ha). The test of antagonism fungusof Trichoderma sp. and Gliocladium sp. on F. oxysporum indicates that the growth of both types ofantagonism is faster so that F. oxysporum tends to keep away from antagonism in the medium of thelaboratory.Keywords: Trichoderma sp., Gliocladium sp., Fusarium oxysporum, antagonism

ISOLASI JAMUR Oncobasidium theobromae P.H.B TALBOT & KEANE PENYEBAB PENYAKIT VASCULAR STREAK DIEBACK PADA TANAMAN KAKAO DI LABORATORIUM Nugraha Pratama Dhana; Lahmuddin Lubis; Lisnawita Lisnawita
Jurnal Agroekoteknologi Vol 2, No 1 (2013)
Publisher : Universitas Sumatera Utara

Isolation of fungi Oncobasidium theobromae P.H.B Talbot and Keane cause disease VascularStreak Dieback (VSD) on cocoa plants in the laboratory. The research aims to isolateO. theobromae cause Vascular Streak Dieback (VSD) disease on cocoa in the Laboratory. Theresearch was conducted at the Laboratory of Plant Desease Faculty of Agriculture, University ofSumatra Utara.. The research results showed that O. theobromae has a mycelium shaped like cottonand thick white cream, thin walled hyphae, hyaline, with irregular septa, spores an oval with oneflat side, 10-15μm in length and width of 8-10μm.Keywords: Vascular Streak Dieback, Oncobasidium theobromae, cocoa

PERTUMBUHAN ISOLAT Phytophthora infestans (Mont.) de Bary TANAMAN KENTANG DAN TOMAT PADA BERBEDA MEDIA DI LABORATORIUM Sri Ahdani Yuta; Mukhtar Iskandar Pinem; Lahmuddin Lubis
Jurnal Agroekoteknologi Vol 2, No 1 (2013)
Publisher : Universitas Sumatera Utara

The growth of Phytophthora infestans (Mont.) de Bary isolate of potato and tomato ondifferent media at Laboratory. This Research was to study the growth of P. infestans on differentmedia at Laboratory. This research was done in Laboratory of Plant disease, AgroecotechnologyProgram Study, Faculty of Agriculture, University of Sumatera Utara, Medan from July toDecember 2012. The method of This research was Completely Randomized Design Factorial withtwelve combinations and two replications. The results showed that the easiest growth isolate ofP. infestans on media was founded potato tubers (I2). The Best growth media of P. infestans wasfounded on media TEA (M3). The fastest growth and diameter of P. infestans was founded inpotato tubers on media TEA (I2M3) and slowest in the potato tubers isolates on PDA (I2M1).Macroscopic and microscopic morphology all isolates are completely same.Keywords: Phytophthora infestans, media, morphology.

EFEK TEMPERATUR TERHADAPVIRULENSI JAMUR Colletotrichum gloeosporioidesPenz. Sacc.PENYEBAB PENYAKIT ANTRAKNOSA PADATANAMAN KAKAO(Theobroma cacao L.) Tatik Fadilah Hakim Harahap1; Lahmuddin Lubis; Hasanuddin Hasanuddin
Jurnal Agroekoteknologi Vol 2, No 1 (2013)
Publisher : Universitas Sumatera Utara

Temperature Effect TowardsVirulency ofColletotrichum gloeosporioides Penz. Sacc. FungalDisesase Caused of Anthracnose on Cocoa(Theobroma cacaoL.).This research aims to determindvirulency level, disease incident and temperature effect towards fungal morphology growth of C.gloeosporioides fungal disesase caused of anthracnose oncocoa (Theobroma cacao L.). The studywas conductedat Karang Anyar village, regency in Langkat with altitude±28masl, at Sambirejovillage, regency in Langkat with altitude±28masl, at Bekukul village, regency in Deli Serdang withaltitude±100 masl, at Sayum Sabah village, regency in Deli Serdang with altitude±200 masl and atthe Laboratory ofPlant Disease, Agroecotechnology Program Study, Faculty of AgricultureUniversity of Sumatera Utara, Medan from July to December 2012.The method of this research issurvey.Results showedthat highest attack percentage was founded in Sambirejo villagewhich reach100% and thelowest was founded in Sayum Sabah village which reach 95%, highest diseaseseverity was founded in Bekukul village which reach 92.0% and thelowest was founded in KarangAnyar village which reach 78.6% and showed no differences fungus morphology that extractedfrom four different location.Keywords: C. gloeosporioides,virulency, morphology, temperature, cocoa

DAYA PREDASI Rhynocoris fuscipes F. (Hemiptera:Reduviidae) TERHADAP ULAT API Setothosea asigna E. (Lepidoptera:Limacodidae) DI LABORATORIUM Edi Kembaren; Darma Bakti; Lahmuddin Lubis
Jurnal Agroekoteknologi Vol 3, No 1 (2015)
Publisher : Universitas Sumatera Utara

ABSTRACTThe Ability of Rhynocoris fuscipes F. (Hemiptera: Reduviidae) to nettle caterpillar Setothoseaasigna E. (lepidoptera: limacocidae) as a predator in the laboratory, it was under supervised byProf. Dr. Ir. Darma Bakti, MS. and Ir. Lahmuddin Lubis, MP. The research was to know the abilityof R. fuscipes to Setothosea asigna. The research was held at the Insect Laboratory, Faculty ofAgriculture, University of Sumatera Utara, Medan from April to Juni 2013. It was arranged byCompletely Randomized Design with 6 treatments and four replications, respectively. The total ofpredator againts nettle caterpillar Sethotosea asigna are: R0 (0:8),R1 (2♂:8 ), R2 ( 2♀:8 ) R3,(♂♀:8 ) ,R4 ( 2♂♀:8), R5 (3♂♀:8). The parameters which observed were the mortality persentageof S. asigna caused by predator R. fuscipes and how to consumed. The result showed that the mosteffective treatment is R5, R4, R3, R2, R1 and R0 at a stretch. The matter is shown from the fastest ofability kill of 8 S. asigna that tested is R5 (10 days) and followed by R4, R3, R2, R1, R0.Keywords : Rhynocoris fuscipes F. and Nettle caterpillar setothosea asigna E

UJI EFEKTIFITAS Trichoderma harzianum DENGAN FORMULASI GRANULAR RAGI UNTUK MENGENDALIKAN PENYAKIT JAMUR AKAR PUTIH (Rigidoporus microporus (Swartz:fr.) van Ov) PADA TANAMAN KARET DI PEMBIBITAN Marah Halim Pulungan; Lahmuddin Lubis; Fatimah Zahara; Zaida Fairuzah
Jurnal Agroekoteknologi Vol 2, No 2 (2014)
Publisher : Universitas Sumatera Utara

ABSTRACTResearch on title testing the effectiveness of Trichoderma harzianum yeast granular formulations tocontrol white root fungus disease (Rigidoporus microporus (Swartz:fr.) van Ov) in the rubber plantnurseries. Required more efficient technologies in utilizing Trichoderma spp, one of which is makeformulations in granular form. Granular formulations easier in application, longer storage period andsupport the deployment of Trichoderma in the soil. This study aims to know the effectiveness ofT. harzianum granular formulations with a variety of mixed media in controlling white root diseasefungus in rubber plant. The research was conducted at Rubber Research Institute of Plant Sungei Putih,Deli Serdang, North Sumatra from Desember 2012-April 2013. The method used randomized blockdesign (RBD) Non Factorial consists of 10 treatments with three replications. The results showed thatthe highest disease intensity at treatment control (83.33%) and the lowest at treatment rice flour +T.harizianum (05.55%). High rubber stump buds highest at treatment rice flour + sugar + bread yeast +T. harzianum (24.44 cm) and the lowest at treatment control (7.78 cm). While soil pH was highest attreatment rice flour + tape yeast + T. harzianum ground limestone (6.33), and the lowest soil pH ontreatment rice flour + tape yeast + sulfur + T. harzianum (4.33). Growth and the antagonist ofT. harzianum higher compared with the addition of other fungi that could be a competitor for space andnutrients of T. harzianum.Keywords : Trichoderma harzianum, yeast, granular, rubber, Rigidoporus microporus

INVENTARISASI JAMUR PENYEBAB PENYAKIT DAUN PALEM RAJA (Roystonea elata Bartr.) TAMAN KOTA MEDAN Sarah Valentina N.; Mukhtar Iskandar Pinem; Lahmuddin Lubis
Jurnal Agroekoteknologi Vol 2, No 2 (2014)
Publisher : Universitas Sumatera Utara

Research on title the utility inventarization fungus which was caused diseases on leaf Roystoneaelata Bartr. in Medan city garden. The research aim to know and to inventary fungus that causedleaf Roystonea elata Bartr. diseases in Medan city garden. The research conducted at Laboratory ofPlant Pathology Faculty of Agriculture, University of North Sumatera with altitude ±25 m asl. Thisresearch used survey method. The Result of this research showed that fungus caused leaf Roystoneaelata Bartr. diseases which in A. Yani garden’s and G. Mada garden’s was Bipolaris sp.,Pestalotiopsis palmarum, Curvularia spp., Fusarium sp. whereas Roystonea elata Bartr. which inLapangan Merdeka garden’s and Teladan garden’s was Bipolaris sp., Pestalotiopsis palmarum,Curvularia spp.Keywords : inventarization, fungus, Roystonea elata Bartr

UJI EFEKTIVITAS Trichoderma harzianum DAN PEMBERIAN ARANG BATOK KELAPA SEBAGAI PENGENDALIAN HAYATI PENYAKIT LANAS (Phytophtora nicotianae de Hann ) PADA TANAMAN TEMBAKAU DELI Indra Hardian Matondang; Lahmuddin Lubis; Mukhtar Iskandar
Jurnal Agroekoteknologi Vol 2, No 2 (2014)
Publisher : Universitas Sumatera Utara

Test Effectiveness of Trichoderma harzianum and Coconut Shell Charcoal Granting of controlBiological Disease As Lanas (Phytophtora nicotianae de Hann) In Tobacco Plants Deli. The studyaims to determine the concentration of T. harzianum and charcoal administration is most effectivein controlling diseases in plants Tobacco P.nicotianae Deli. The experiment was conducted at theExperimental Farm Deli Sampali Tobacco Research Institute, Medan. This research used arandomized block design factorial with two factors and three replications. The first factor T.harzianum (T) consists of (T0) without treatment, (T1) T.harzianum that in cultures on corn mediawith a dose of 10 g / plant, (T2) T.harzianum that in cultures on corn media with a dose of 15 g /plant, (T3) T.harzianum that in cultures on corn media with a dose of 20 g / plant and the secondfactor consists of charcoal administration (A0) without treatment, (A1) coconut charcoal with adose of 20 g / plant. The results showed the highest percentage of attacks are on treatment T0A0amounting 99.71% and the lowest percentage of attacks are on treatment T3A1 (T.harzianum that incorn cultured on medium with a dose of 20 g / plant and coconut shell charcoal with a dose of 20 g /plant ) by 0.71%. The highest number of leaves found in treatment T3 (T.harzianum that in cultureson corn media with a dose of 20 g / plant strands at 11.67 and the lowest at treatment T0 (control) of7.17strands.Keywords: T.harzianum, coconut Shell charcoal, P.nicotianae, TobaccoDeli

Co-Authors Aditia Exaudi tampubolon Agus Eko Prasetyo Arie Ramadhina Arie Ramadhina Benny Benny Cici Indriani Dalimunthe Cici Indriani Dalimunthe Cici Indriani Dalimunthe Darma Bakti Debi Sabrina Ompusunggu Deni Yolanda Sinaga Desy Siburian Edi Kembaren Fatimah Zahara Febepriskila Br Tarigan Hasanuddin Hasanuddin Ida Rumia Manurung Immanuel Sembiring Indra Hardian Matondang Inni Izzati Intan Purnamasari Irda Safni Irena Santy Waruwu irma aryani Leo Alvian Ginting Lisnawita Lisnawita Luskino Silitonga Lydia Manurung Marah Halim Pulungan Marheni Marheni Maryani Cyccu Tobing Maya Sari Rahayu Mirasiska Tarigan Mukhtar Iskandar Mukhtar Iskandar Pinem Mutiah Sari Neny Yanti Siregar Nova Berta Sianturi Nugraha Pratama Dhana Ridha Hasanah Sihombing Rini Junita Ronaldo Hasudungan Pangaribuan Rotua Maryance Gultom Sarah Valentina N. Sari M. D. Panggabean Sondang Sitanggang Sri Ahdani Yuta Suzanna F. Sitepu Syahrial Oemry Tatik Fadilah Hakim Harahap1 veronika vero sidabutar Yuswani Pangestiningasih Yuswani Pangestiningsih Yuswani Pangestiningsih Yuswani Yuswani Pangestiningsih Zaida Fairuzah Zaidah Fairuzah

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