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JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
Published by Universitas Lampung
ISSN : 14117525     EISSN : 24610399     DOI : -
Core Subject : Agriculture,
Jurnal Hama dan Penyakit Tropika (JHPT Tropika) publishes articles in plant pests, plant pathogens, plant damage caused by those pests and pathogens and or their management in tropical areas. In addition to basic and applied research papers, JHPT Tropika publishes short communication that have not been published. Before being accepted for publication, all manuscripts must be peer reviewed. The journal is published sixmonthly in March and September.
Arjuna Subject : -
Articles 521 Documents
EFIKASI VERTICILLIUM LECANII UNTUK MENGENDALIKAN PENYAKIT KARAT PADA CAKRAM DAUN KOPI DI LABORATORIUM Cipta Ginting dan Subli Mujim .
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 7 No. 2 (2007): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (54.544 KB) | DOI: 10.23960/j.hptt.27125-129

Abstract

Efficacy of Verticillium lecanii to prevent the incidence of rust on coffee leaf disks in the laboratory. In the coffee plantations, Verticillium colonies often develop on the uredium and urediospores of H. vastatrix causing coffee leaf rust. The objective of this study was to determine the efficacy of V. lecanii to prevent disease incidence on coffee leaf disks in the laboratory. Leaf samples showing lesions with H. vastatrix uredospores and whitish mycelium expected to be Verticillium were taken from two coffee fields at Sumberjaya Subdistrict, West Lampung, and transported in ice chest to the laboratory. Verticillium was isolated with a sterilized needle and grown on PDA-lactic acid media (PDA-L). Verticillium was identified as V. lecanii as reported previously. In the first test, each of two isolates of V. lecanii was grown on media containing yeast extract, malt, peptone-water, and dexytrose (YMPD) to produce conidia. In the second and third tests, each of five antagonistic isolates was grown on PDA-L. Suspension with 107 conidia ml-1 was sprayed into leaf disks and then the disks were inoculated with urediospores (104 ml-1). In the first test, disease incidence was significantly reduced. However, in the second and third tests, the disease was not significantly reduced.
AKTIVITAS INSEKTISIDA EKSTRAK BIJI TRICHILIA TRIJUGA ROXB. (MELIACEAE) TERHADAP ULAT DAUN MELATI PALPITA UNIONALIS (HÜBNER) Ika Sartika , Djoko Prijono Gustini Syahbirin , dan Maryam Abn.
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 1 No. 2 (2001): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (100.847 KB) | DOI: 10.23960/j.hptt.2137-44

Abstract

Insecticidal activity of Trichilia trijuga Roxb. (Meliaceae) seed extracts against jasmine leaf caterpillar Palpita unionalis (Hübner). The insecticidal activity of Trichilia trijuga seed extracts was evaluated in the laboratory against the jasmine leaf caterpillar Palpita unionalis. Acetone neem (Azadirachta indica) seed extract and NeemAzal T/S formulation (a.i.: 1% azadirachtin) were included in the test as positive controls. First-instar larvae of P. unionalis were fed with treated jasmine leaves for 2 days, then surviving larvae were fed with untreated leaves and observed daily until reaching third-instar stage. The treatments with acetone extract and aqueous extract of T. trijuga at concentrations of 0.175% and 21 g of seeds/l of water (2.1%), respectively, caused a complete kill in the test larvae. The insecticidal activity of T. trijuga acetone extract at 0.175% was comparable with that of NeemAzal preparation containing azadirachtin of about 10 – 17.5 ppm. Based on larval mortality until the third instar, LC50 of acetone extract and aqueous extract of T. trijuga were 0.024% and 0.307%, respectively (LC50 of acetone neem seed extract was 0.018%). In addition to lethal effect, T. trijuga seed extracts also delayed the development of the surviving larvae; for example, the treatment with T. trijuga acetone extract at 0.1% prolonged the developmental time of P. unionalis larvae to the third instar by 3 days compared to control. It is concluded that T. trijuga seeds serve as a potential source of botanical insecticides, particularly against P. unionalis.
Penapisan Isolat Rizobakteri dari Perakaran Tanaman Kedelai yang Sehat untuk Pengendalian Penyakit Pustul Bakteri (Xanthomonas axonopodis pv. glycines) Yulmira Yanti; Trimurti Habazar; Zurai Resti; Dewi Suhalita
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 13 No. 1 (2013): MARET, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (246.092 KB) | DOI: 10.23960/j.hptt.11324-34

Abstract

Screening of indigenous rhizobacteria from healthy soybean root to control bacterial pustule (Xanthomonas axonopodis pv. glycines) using in planta technique. Plant growth promoting rhizobacteria are a group of bacteria that actively colonize plant roots, increase plant growth and control plant pathogens. The aim of this study was to obtain rhizobacteri isolates which have the ability to control bacterial pustule and increase growth and yield of soybean. This method based on in planta selection of enhanced competitive soil root-colonizing bacteria from soil samples of healthy soybean root at endemic area of bacterial pustule in Darmasraya District and Sijunjung District, West Sumatera. We characterized only the best rhizobacteri isolates which have ability to control bacterial pustule and to increase growth and yield of soybean. This type of characterization has possibility to find new, easy and cheap biocontrol organisms. Ten Rhizobacteri isolates were introduced via seed treatment (108 cfu/ml) and soil drench to 3 week old soybean seedling. Xanthomonas axonopodis pv. glycines were inoculated to one month old of soybean seedling. The effect of rhizobacteria on disease incidence, disease severity, plant growth and yield of soybean were evaluated. We have found that two selected rhizobacteri isolates from soybean (P12Rz2.1 and P14Rz1.1) were the best isolates in promoting growth and the of the soybean plants with the effectiveness 20.62 % and 20.47 %.
EFIKASI ASAP CAIR DARI TANDAN KOSONG KELAPA SAWIT (TKKS) DALAM PENEKANAN PERKEMBANGAN JAMUR ASPERGILLUS NIGER Hasan Ashari Oramahi, Farah Diba, & Wahdina .
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 10 No. 2 (2010): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (96.21 KB) | DOI: 10.23960/j.hptt.210146-153

Abstract

The efficacy of liquid smoke from oilpalm empty fruit bunch in suppressing the development of fungus. Fungi that have been grown on maize seed were Aspergillus niger, A. flavus and Aspergillus sp. From those species, A. niger is important species because of its toxigenic characteristic on agricultural product. The objective of this research was to evaluate the efficacy of oilpalm empty fruit bunch liquid smoke in suppressing the development of the fungus. This research was conducted in several steps i.e. pyrolisis of liquid smoke, analysis of liquid smoke content, and efficacy test of liquid smoke as antifungal. Agar media used was PDA (potato dextrose agar) and concentration of liquid smoke was 0, 1, 2, and 3% (v/v). The results indicated that the liquid smoke inhibited the fungal growth. The highest result was on liquid smoke with temperature pyrolisis of 400 and 450oC and concentration 3% with average value of 100%. The contents of organic fraction of liquid smoke, such as acid and phenol might be responsible for the difference in antifungal activities among this liquid smoke.
EKSPLORASI, ISOLASI DAN SELEKSI JAMUR ENTOMOPATOGEN PLUTELLA XYLOSTELLA (LEPIDOPTERA: YPONOMEUTIDAE) PADA PERTANAMAN CAISIN (BRASSICA CHINENSIS) DI SUMATERA SELATAN Haperidah Nunilahwati; Siti Herlinda; Chandra Irsan; Yulia Pujiastuti
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 12 No. 1 (2012): MARET, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
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Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (692.329 KB) | DOI: 10.23960/j.hptt.1121-11

Abstract

Plutella xylostella is the most destructive insect pests of the brassicae family. The research objective was to explore, isolate and select entomopathogenic fungi as biological agents for control of P. xylostella. This study used 20 fungal isolates originating from soil and infected insects around the farmers’ field in lowland and highland of South Sumatra. The fungal isolates were tested to third instar larvae of P.xylostella. The suspension of entomopathogenic fungus was topical inoculated with a density of 1x106 conidia ml-1 on the test insect and five replicates. The result showed that the highest (83%) and the lowest (41%) mortality of the larvae P.xylostella was induced by fungal BPluS and BNIPTr, respectively. Moreover, the shortest (2.1 days) and the highest (4.3days) lethal times of the infected host were induced by fungal BPluS and BNIPTr, respectively.
KESESUAIAN DAN PREFERENSI LIRIOMYZA HUIDOBRENSIS (BLANCHARD) (DIPTERA: AGROMYZIDAE) PADA BERBAGAI TUMBUHAN INANG Purnomo, Aunu Rauf, Soemartono Sosromarsono, dan Teguh Santoso.
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 8 No. 2 (2008): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (74.777 KB) | DOI: 10.23960/j.hptt.28102-109

Abstract

Host suitability and the preference of Liriomyza huidobrensis (Blanchard) (Diptera: Agromyzidae) on different host plants. Potato leafminer, Liriomyza huidobrensis has become a major pest on highland vegetables since its invasion in Indonesia in 1994. The objectives of this research was to elucidate the level of suitability and the preference of L. huidobrensis on different host plant species. Research was conducted in Insect Ecology Laboratory, Department of Plant Pests and Diseases, Faculty of Agriculture-IPB. The result of laboratory experiments indicated that host plants showing the highest level of suitability (based on the intrinsic rate of increase, r) were potato (Solanum tuberosum), chinese cabbage (Brassica chinensis var. parachinensis), kacang endul (P. vulgaris), and snap bean (P. vulgaris). Low host suitability were found on cucumber (Cucumis sativus), tomato ( S. lycopersicum), wild radish (Nasturtium indicum) and a non-crop vegetation, galinggang (Galinsoga parviflora). There was consistency between suitability and host preference. The first four host plants mentioned above were preferred for feeding and laying eggs.
IDENTIFIKASI DINI GALUR KACANG TANAH YANG RESISTEN TERHADAP INFEKSI SCLEROTIUM ROLFSII HASIL SELEKSI IN VITRO DENGAN FILTRAT KULTUR S. ROLFSII Yusnita, Widodo, Rita Megia, Hajrial Aswidinnoor dan Sudarsono .
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 6 No. 1 (2006): MARET, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
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Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (307.891 KB) | DOI: 10.23960/j.hptt.1641-51

Abstract

Early Identification of Sclerotium rolfsii Resistant Lines of Peanut Derived from In Vitro Selection Using S. rolfsii Culture Filtrates. The objectives of this experiment was to evaluate methods for early identification of Sclerotium rolfsii resistant lines derived from fungal culture filtrate (CF)-insensitive somatic embryos (SE) and to correlate the results of early identification with that of direct S. rolfsii inoculation in the plastic house. In the first method, shoots regenerated from CF-insensitive SE were planted onto selective medium containing 30% of S. rolfsii CF for one month and then responses were evaluated. In the second method, leaves and leaflets of R0 peanut lines derived from CF-insensitive SE were inoculated with S. rolfsii by detached leaf-dual culture test. The damages of the inoculated leaves and leaflets were assessed 6 days after inoculation. A number of R1 plants were grown in the plastic house from seeds harvested from R0 peanut lines, and they were inoculated with S. rolfsii at 30 days after planting (dap). Responses of the inoculated R1 plants were observed at 44 dap. Results of the experiment indicated that shoots from CF-insensitive SE showed less damage scores (DS=1.2), when cultured on CF-containing selective medium than ones from non-selected SE (DS=2.9). Most of the detached leaves and leaflets inoculated with S. rolfsii totally necrosed. However, leaves and leaflets from 7 out of 23 R0 lines showed variegation between necrosed and healthy tissues, indicating the presence of S. rolfsii resistant tissue among the tested leaves and leaflets. Direct inoculation of R1 plants in the plastic house showed 10 out of 18 progenies derived from 6 R0 lines showed less disease severity scores (DSS=2 or 3) and they were able to survive and produce seeds. On the other hand, seed derived (original) peanut plants cv. Kelinci inoculated with S. rolfsii all showed DSS=5 and died after inoculation. The overall results of the experiment indicated the usefullness of in vitro selection using S. rolfsii culture filtrates for regenerating S. rolfsii resistant peanut variants and the possible use of methods for early identification of desirable variants.
TANAMAN INDIKATOR DAN TEKNIK RAPD-PCR UNTUK PENENTUAN BIOTIPE BEMISIA TABACI GENNADIUS (HEMIPTERA: ALEYRODIDAE) Purnama Hidayat, Noor Aidawati Sri Hendrastuti Hidayat dan Dewi Sartiami
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 8 No. 1 (2008): MARET, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
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Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (442.999 KB) | DOI: 10.23960/j.hptt.181-7

Abstract

Indicator Plant and PCR-RAPD for Biotype Determination of Bemisia tabaci Gennadius (Hemiptera: Aleyrodidae).B. tabaci has been known world wide as a major pest and virus vector of horticulture. In Indonesia the presence of B.tabaci was reported since 1980 and its role as virus vector in tomato and chilli pepper has becoming more importantrecently. Genetic diversity of B. tabaci has been well recognized, but very little information available for diversity of B.tabaci in Indonesia. This research was conducted in Bogor, West Java from May 2004 to June 2005. The aim of thisresearch was to initiate basic information regarding genetic diversity of B. tabaci in Indonesia, particularly in Java Island.Whiteflies population collected from different crops, i.e. tomato, broccoli, chill pepper, eggplant, cucumber, soybean, andedamame, was evaluated using silverleaf-induction test, and RAPD-PCR. It was evidenced that only B. tabaci populationfrom broccoli was able to induce silverleaf. Two genetic types of B. tabaci, i.e. biotype B and non B, were identified basedon polymorphism character of DNA. Population from broccoli was belong to biotype B, whereas other populations fromtomato, chill pepper, eggplant, cucumber, soybean, and edamame were belong to biotype non B.
EVALUASI LIMA JENIS INNER CARRIER DAN FORMULASI BACILLUS SUBTILIS UNTUK PENGENDALIAN HAWAR PELEPAH JAGUNG (RHIZOCTONIA SOLANI KUHN) Amran Muis; Nurasiah Djaenuddin; Nurnina Nonci
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 15 No. 2 (2015): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (125.614 KB) | DOI: 10.23960/j.hptt.215164-169

Abstract

Evaluation of five inner carriers and Bacillus subtilis formulation to control banded leaf and sheath blight (Rhizoctonia solani Kuhn). One alternative control method against plant pathogens is the use of antagonistic microorganisms, such as Bacillus subtilis. The use of the antagonistic bacteria on corn especially in Indonesia is still lack. The objective of this research was to evaluate some inner carrier and to make formulated antagonistic B. subtilis to be used as biological control agents on corn diseases. This research consists of laboratory and greenhouse activities. The laboratory activities consist of B. subtilis biomass production, formulation of B. subtilis, and evaluation of five types of inner carrier. In the greenhouse, testing the formulation B. subtilis with talc as an inner carrier, which is compared with the treatment solution of B. subtilis, nordox, metalaxyl fungicides. The data collected in this study were percentage of germination, damping off due to pathogen R. solani, plant height, plant fresh weight, and percentages of R. solani incidence on 14 DAP. The results showed that talc powder and corn flour were the best inner carrier to be used in sorage formulation of antagonistic Bacillus. Formulated Bacillus subtilis TM4 showed no negative affect on seed germination and able to suppress the development of R. solani in greenhouse.
PENGGUNAAN TEKNIK PCR DAN RFLP UNTUK DETEKSI DAN ANALISIS KERAGAMAN VIRUS GEMINI PADA TANAMAN TOMAT YANG BERASAL DARI BERBAGAI DAERAH DI JAWA BARAT DAN LAMPUNG Sudiono , Sri Hendrastuti Hidayat, , Rusmilah Suseno2, dan Soemartono Sosromarsono
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 4 No. 2 (2004): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (202.176 KB) | DOI: 10.23960/j.hptt.2489-93

Abstract

The Technique of PCR and RFLP to detection and analysis geminivirus diversity on tomato from growing areas in West Java and Lampung. Geminivirus infection has been reported on various important crops, among others on tomato. Infected plant were collected from six tomato growing areas in West Java (Bandung, Segunung, Darmaga, Ciloto, Cibeuying, and Cisaat) and Lampung (Bandar Lampung). Polymerase chain reaction method using universal primers for geminiviruses were successfully amplified a 1.5 kb DNA fragment from diseased plants from Bandung, Cisaat, Ciloto and Cibeunying. Comparative model enzyme restriction showed that sample from Bandung, Cisaat, Ciloto are probably strains of the same virus.

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