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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
ELIMINATION OF Cucumber Mozaic Virus (CMV) FROM A RANGE OF CHRYSANTHEMUM CULTIVARS THROUGH MERISTEM CULTURE FOLLOWING HEAT TREATMENT Kurniawan Budiarto
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 11 No. 1 (2011): MARET, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (41.521 KB) | DOI: 10.23960/j.hptt.11128-34

Abstract

Cucumber Mosaic Virus (CMV) is one of pathogenic viruses that commonly found and has caused significant losses in many chrysanthemum growers in Indonesia. Efforts have been made to get healthy plant source through eliminating virus from infected plants and one of the promising methods was the combination of thermotherapy and meristem culture. The research was conducted to find out the effect of meristem culture following heat treatments on the existence of CMV in infected chrysanthemum plantlets. The experiment was carried out in the laboratory of tissue culture and virology at The Indonesian Ornamental Crops Research Institute (IOCRI) from August 2007 until June 2008. A complete factorial with ten replications was designed to accomplish the combination of two factors. The first factor was three chrysanthemum cultivars, namely Stroika, Dewi Sartika and White Fiji, while the second dealt with the durations of heat treatment i.e. one, two and three weeks. The results showed that plantlet survival decreased, yet improved plantlet performance by faster bud initiation with lengthened heat duration. The percentage of virus-free planlets also increased along with the duration of treatment and three weeks heat treatment followed by meristem culture effectively eliminated CMV from infected planlets.
ISOLASI DAN SELEKSI RIZOBAKTERI YANG BERPOTENSI SEBAGAI AGEN PENGENDALI PANTOEA STEWARTII subsp. STEWARTII PENYEBAB LAYU STEWART PADA TANAMAN JAGUNG Rahma, Haliatur; Zainal, Aprizal; ., Suryati
JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA Vol 16, No 2 (2016): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
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Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (130.975 KB) | DOI: 10.23960/j.hptt.216124-130

Abstract

Isolation and selection of rhizobacteria potentially as biocontrol agents against Pantoea stewartii subsp. stewartii causing stewart’s wilt disease in maize. Group of bacteria that colonize plant roots were known as Plant Growth Promoting Rhizobacteria (PGPR), in addition to capable of suppressing the development of pathogens also has the ability to improve plant health. This study aims to isolate rhizobacteria from rhizosphere of maize in West Sumatera. Rhizobacteria were characterized and tested for its ability to suppress the bacteria Pantoea stewartii subsp. stewartii causes stewart wilt’s disease on maize. In this research 15 isolates of rizobacteria potential as biological agent were found, i.e. 6 isolates of the fluorescens bacteria group, 5 isolates of non fluorescens bacteria group and 4 isolates of heat-resistant bacteria group.
Keanekaragaman Jamur pada Rizosfer Tanaman Cabai Sistem Konvensional dan Organik dan Potensinya sebagai Agen Pengendali Hayati Colletotrichum gloeosporioides Nurbailis .; Martinius .; Verry Azniza
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 14 No. 1 (2014): MARET, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
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Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (67.828 KB) | DOI: 10.23960/j.hptt.11416-24

Abstract

ABSTRACTFungal diversity of chili rhizosphere at conventional and organic cropping system and its role as biocontrol agent of Colletotrichum gloeosporioides. The aim of this research was to study fungal diversity in chili rhizosphere at conventional and organic system; to ditermine and identify the fungi that had antagonistic activity against C. gloeosporioides. Diversities of rhizosphere fungi in chili of conventional and organic system were determined by counting the amount of propagule and isolates. Antagonistic activity was examined by dual cultures and slide culture. Identification was determind up to genus level. Propagule density and the amount of isolates in chili rhizosphere of organic system were higher than those in conventional system. Fifty two fungal isolates were found from chili rhizosphere at conventional and organic system, 28 isolates from organic system and 24 isolates from conventional. Ten fungal isolates from chili rhizosphere in organic system and 4 fungal isolates from that in conventional system had antagonistic activity against C. gloeosporioides which cause antracnose on chili. The antagonistic isolates were: Trichoderma, Paecilomyces, Aspergillus and unidentified isolate (X isolate).
DAMPAK PADI TRANSGENIK MENGEKSPRESIKAN GEN cryIA(b) UNTUK KETAHANAN TERHADAP PENGGEREK BATANG DI LAPANG TERBATAS TERHADAP SERANGGA BUKAN SASARAN Enung S. Mulyaningsih, Puspita Deswina dan Inez H. Slamet-Loedin .
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 9 No. 2 (2009): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
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Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (140.463 KB) | DOI: 10.23960/j.hptt.2985-97

Abstract

The impact of transgenic rice expressing cryIA(b) gene for stem borer resistance at limited field to non target insects. Transgenic rice plant Rojolele cultivar (lines 6.11(+), 6.11-48, 6.11, 11.21-39, and 11.21-48) that contain cryIA(b) gene from Bacillus thuringiensis was obtained. These lines were expected resistance to stem borer that is considered as one of primary pests. At seven (T6) generation, limited field trial was conducted in Karawang-West Java. Cilosari cultivar (medium resistant control) and IR 62 (susceptible control) were included as standars as well as a non transformed cultivar Rojolele isogenic control and border along with other plants in the surrounding area. The testing was done to meet the biosafety requirements as stipulated in Assessment Guidelines of Living Modified Organism Biosafety Plant Series. Observation was carried out on non targert insect such as other pest insect and general predator in the field. The results showed that non target pest insect white back planthopper (WBP) and bug rice (Leptocorisa oratorius F.) were found in the field with different levels attacks in accordance with their respective population. WBP attacked since the beginning of the planting. WBP population in transgenic plant at the end of the observation indicated the same level of vulnerability as Rojolele control and both were more vulnerable that Cilosari and IR 62. The rice bug attack when plant at tiller filling (immature seed) therefore the data could not be compared with Cilosari and IR 62 because both of cultivars were shorter age than Rojolele. However, the population of L. oratorius between transgenic and control were not significant different. There are three genera of generalist predator observed such as Paederus, Coccinella, and Cyrthorinus. These population were not significant different in all transgenic lines tested (Rojolele control, Cilosari, and IR 62). Thus the results of the experiment proved that transgenic lines tested in Karawang did not have negative impact on the population of other insects.
PENEKANAN HAYATI PENYAKIT MOLER PADA BAWANG MERAH DENGAN TRICHODERMA HARZIANUM, TRICHODERMA KONINGII, DAN PSEUDOMONAS FLUORESCENS P60 Suprapto Edy Santoso, Loekas Soesanto, dan Totok Agung Dwi Haryanto .
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 7 No. 1 (2007): MARET, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
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Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (94.118 KB) | DOI: 10.23960/j.hptt.17%p

Abstract

Biological Suppression of Moler Disease on Shallot by Trichoderma harzianum, Trichoderma koningii, and Pseudomonas fluorescens P60. Research aiming for (1) knowing efectivity of biological suppression with T. harzianum, T. koningii, and P. fluorescens P60 and (2) studying growth and production of shallot caused by the suppression carried out at the shallot farm. Split-Split Plot Design arranged in Randomized Completely Block Design was used with three replicates. The research result showed that P. fluorescens P60 was the most effective antagonistic agent to suppress the disease either alone or in combination while T. harzianumi and T. koningii did not suppress effectively. Pseudomonas fluorescens P60 could suppress the disease up to 41.96%. The best method of P. fluorescens P60 application was spraying method for 10 mL with 107 cfu/mL population density, which was able to dicrease incubation period, disease intensity, and final pathogen population up to 62.46, 18.19, and 80.67%, respectively. Growth and production of the crop tended to increase resulted from biological suppression by P. fluorescens P60, but not by T. harzianum nor T. koningii.
STATISTIK DEMOGRAFI DIAPHANIA INDICA SAUNDERS (LEPIDOPTERA: CRAMBIDAE) Ita Fitriana; Darmayanti Buchori; Ali Nurmansyah; Roschon Ubaidillah; Akhmad Rizal
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 15 No. 2 (2015): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
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Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (266.921 KB) | DOI: 10.23960/j.hptt.215105-113

Abstract

Demographic statistic of Diaphania indica Saunders (Lepidoptera: Crambidae). Diaphania indica is a pest of Cucumis sativus L. The information about the biology of D. indica is needed to determine appropriate pest management strategies. The aim of this study was to study the biology and life cycle of D. indica. The study was conducted by observing life stage development of D. indica, such as life cycle, head width and body length. The life table was determined by calculating mortality of D. indica individuals and fecundity at each age. Mortality and fecundity data of D. indica were then used to calculate the parameters of population growth including gross reproduction rate (GRR), net reproductive rate (Ro), mean generation time (T) and and intrinsic rate of increase (r ). The results show that the life cycle of D. indica is about 25.7 days, while egg stadium = 3.2 days, larval stadium = 13.5 days, pupal stadium = 7.9 days, imago stadium = 8.6 days, and preoviposition period = 3.9 days. GRR of D. indica is 263 individuals per generation. Ro = 51 individuals per female per generation. T is 31.3 days and the innate capacity for increase (r) = 0.1 individual per female per day.
PENGARUH POLA HARI HUJAN TERHADAP PERKEMBANGAN PENYAKIT GUGUR DAUN CORYNESPORA PADA TANAMAN KARET MENGHASILKAN Nurhayati dan Aron Situmorang .
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 (236.234 KB) | DOI: 10.23960/j.hptt.1863-70

Abstract

Effect of weather on the development of leaf fall disease in the yielding rubber estate. This research was conducted in PTP VII Bergen Lampung from July to August for 2005 and 2006 (new leaves period). This research was carried out using survey and experiment methods. Parameters observed in the research were persentages of leaf stage, the number of leaf fall per m2 caused by Corynespora cassiicola and amount of spore distributed in air, daily rainfall amount and number of rain days. Results of the study showed that the pattern of rainfall and number of raindays affected the development of plant’s new leaves and leaf fall disease caused by Corynespora. The amount of spores distributed in the air was relatively higher in 2005 observation period compared to 2006 one. The pattern of rainfall and number of rain days also affected the disease severity which was higher in 2005 compared to 2006. Epidemy was occurred when lower rainfall amount taking place intermittently with sunny days in the period of new leave formation.
KERENTANAN WERENG BATANG COKELAT (NILAPARVATA LUGENS) DARI ENAM LOKASI DI PULAU JAWA TERHADAP TIGA JENIS INSEKTISIDA Erwin Cuk Surahmat; Dadang .; Djoko Prijono
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 16 No. 1 (2016): MARET, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
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Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (163.956 KB) | DOI: 10.23960/j.hptt.11671-81

Abstract

Susceptibility of the rice brown planthopper (Nilaparvata lugens) from six locations in Java to three insecticides. The rice brown planthopper (BPH), Nilaparvata lugens (Stål) (Hemiptera: Delphacidae), is one of the important rice pests in Indonesia. Despite relatively frequent use of insecticides to control this pest, data on BPH resistance to insecticides commonly used by farmers in Indonesia is scarce. This study was conducted to assess the susceptibility of BPH from six locations in Java to three insecticides, i.e. BPMC, imidacloprid, and pymetrozine, and to find out the historical use of insecticides by rice farmers. The first laboratory generations of BPH adults were subjected to insecticide treatments using a leaf dip residual method as described in IRAC Method No 005. Resistance factor (RF) for BPMC and imidacloprid was determined by comparing LC50 of each insecticide against BPH field populations with that against the reference population, whereas the susceptibility of BPH to pymetrozine was assessed based on inhibition of BPH population development. The three insecticides used in this study were commonly used by farmers in the six sampling locations and those insecticides were mostly used twice per rice growing season. BPH populations from all six locations as well as the reference population were susceptible to pymetrozine in which the treatment with pymetrozine at 50 ppm (one-fifth of the recommended field rate) caused 100% inhibition of BPH population development. BPH from five locations showed resistance to imidacloprid (RF > 4), but that from Pasuruan did not (RF 2.0). BPH from Indramayu was resistant to BPMC (RF 6.6) whereas those from the other five locations were not (RF < 4). Exposure of the reference population to a sublethal dose of insecticides (LC50 or IC50) decreased the susceptibility of the third BPH generation to pymetrozine and BPMC but not to imidacloprid.
PERKEMBANGAN POPULASI KUTU PERISAI AULACASPIS TEGALENSIS ZEHNTNER (HOMOPTERA: DIASPIDIDAE) DAN PENGARUH TINGKAT SERANGANNYA TERHADAP PENURUNAN HASIL TEBU DI PT GUNUNG MADU PLANTATIONS, LAMPUNG TENGAH Sunaryo dan Rosma Hasibuan .
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 3 No. 1 (2003): MARET, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
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Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (63.567 KB) | DOI: 10.23960/j.hptt.131-5

Abstract

Population development of a scale insect Aulacaspis tegalensis Zehntner (Homoptera: Diaspididae) and effect of its infestation on sugarcane yield loss in PT Gunung Madu Plantations, Central Lampung. Sugarcane scale insect, Aulacaspis tegalensis, is a new major pest of sugarcane in PT Gunung Madu Plantations (GMP). A survey was conducted at the experimental station of the Research and Development Division of PT GMP to investigate the population growth of the pest and effects of their infestation on sugarcane production. The first study indicated that the population of the pest started to grow when the host plants were at the age of 8 months and reached a peak (300 individuals/stem) on mature sugarcane plants (11 month old). A low population of the pest at younger sugarcane plants might be due to the fact that during their first seven months of growth, sugarcane plants had no stem or even if they had, the leaf sheaths were still closedly intact to the stem, while the scale insects could live and survive optimally at the internodes under the leaf sheaths. The second study showed that the first pest outbreak occurred in 2000 which covered 162.27 ha of sugarcane fields. In the year of 2001, the infested area increased significantly (up to 1157.93 ha). In addition, the effect of the scale insect infestation caused an enormous yield loss. The losses could be expressed as the reductions in: stem weight, pol (polarisation, sucrose content), brix (total soluble solids), and sugar contents.
PENGARUH PEMBERIAN Beauveria bassiana Vuill TERHADAP KEMATIAN DAN PERKEMBANGAN LARVA Spodoptera litura Fabricus DI RUMAH KACA Raden M. Saleh, Rosdah Thalib dan Suprap .
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 1 No. 1 (2001): MARET, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (49.443 KB) | DOI: 10.23960/j.hptt.117-10

Abstract

The effects of beauveria bassiana vuill apllication upon the mortality and development of spodoptera litura fabricus larvae in glasshouse. A research has been done in order to know the effects of Beauveria bassiana Vuill application on the Spodoptera litura Fabricus larvae. The research was conducted in glasshouse of Jurusan Hama dan Penyakit Tumbuhan, Fakultas Pertanian Universitas Sriwijaya, by using completed randomized design with four Beauveria concentration as treatment and six replications. The treatments were 0, 104, 106 an d 108 Beauveria spores per cc of water. Each replication consists of four units of plant sample. The result of the study shows that 108 spores of Beauveria caused 70% larval mortality, the highest among all concentrations. The growth of the larval weight was decreeasing following the increasing of the Beauveria concentration. The changing in the body color and reducing in eating activities were showed by the larvae as the effects of Baeuveria apllication.

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