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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
EFFECTS OF ALPINIA GALANGA POWDER ON PHYTOPHTHORA CAPSICI LEIONIAN IN VITRO Joko Prasetyo, Subli Mujim, and Cipta Ginting .
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 3 No. 2 (2003): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
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Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (47.906 KB) | DOI: 10.23960/j.hptt.2336-39

Abstract

Pengaruh Alpinia galanga terhadap Phytophthora capsici Leionian secara in vitro. Penelitian telah dilakukan untuk mengetahui pengaruh tepung beberapa bagian dan konsentrasi A. galanga terhadap jari-jari koloni dan produksi zoospora P. capsici. Percobaan dilakukan secara faktorial (4x4) dalam rancangan acak lengkap dengan tiga ulangan. Faktor pertama adalah tepung bagian tanaman, yaitu rhizome, batang, daun, dan akar. Faktor kedua adalah konsentrasi ekstrak, yaitu 0,0%; 0,5%; 1%, dan 1,5%. Peubah yang diamati adalah diameter koloni dan kepadatan spora P. capsici. Hasil percobaan menunjukkan bahwa setiap konsentrasi serbuk akar paling efektif dalam menekan diameter koloni dibandingkan dengan serbuk bagian yang lain, kecuali pada konsentrasi 1,5%. Pada konsentrasi 1,5%, serbuk akar dan rhizome mempunyai efektivitas yang sama. Secara khusus, untuk serbuk rhizome dan akar semakin tinggi konsentrasi semakin efektif dalam menekan diameter koloni P. capsici. Hasil penelitian juga menunjukkan bahwa pada konsentrasi 0,5%, serbuk rhizome dan daun lebih efektif dalam menekan produksi zoospora dibandingkan dengan serbuk batang dan akar; rhizome dan daun mempunyai efektivitas yang sama. Pada konsentrasi 1 dan 1,5%, serbuk rhizome, daun, dan akar lebih efektif dalam menekan produksi zoospora dibandingkan dengan serbuk batang; rhizome, daun, dan akar mempunyai efektivitas yang sama. Secara khusus, pada rhizome dan akar, semakin tinggi konsentrasi semakin efektif dalam menekan produksi zoospora P. capsici.
PATOGENISITAS BAKTERI LAYU PISANG (RALSTONIA SP.) PADA BEBERAPA TANAMAN LAIN Titik Nur Aeny1 .
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 1 No. 2 (2001): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
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Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (48.389 KB) | DOI: 10.23960/j.hptt.2160-62

Abstract

ABSTRACTPathogenicity of banana wilt bacteria (Ralstonia sp.) on several other plants. This experiment was conducted to investigate the pathogenicity of bacterial wilt of banana pathogen (Ralstonia sp.) isolated from infected plants in Lampung on tomato, chili pepper, eggplant, and ginger. The experiment was conducted in Laboratory of Plant Protection Department, Faculty of Agricultural University of Lampung, from May 1999 to February 2000. Treatments in this experiment were arranged in a completely randomized design with four replications. The treatments were tomato, eggplant, chili pepper, and ginger. Banana was used as the control. The results of this experiment showed that up to 30 days after inoculation, the bacteria isolated from banana found in Lampung was not able to cause symptom on tomato, chili pepper, eggplant, nor ginger. However, this bacteria caused wilting on banana eight days after inoculation; the incubation period of this bacteria on banana was eight days.
Uji Efikasi Bioinsektisida Jamur Entomopatogen Berformulasi Cair terhadap Plutella xylostella (L.) Di Laboratorium Haperidah Nunilahwati; Siti Herlinda; Chandra Irsan; Yulia Pujiastuti; . Khodijah; Dewi Meidelima
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 13 No. 1 (2013): MARET, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
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Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (206.748 KB) | DOI: 10.23960/j.hptt.11352-60

Abstract

Efficacy test of liquid bio-insecticide of entomopathogenic fungi in control against Plutella xylostella in the laboratory. The insect pest P. xylostella could reduce crop production of Brassicaceae. The aim of research was to test the efficacy liquid bio insecticide with active ingredient of Beauveria bassiana and Metarhizium anisopliae fungi to control P. xylostella. Bio-insecticide was applied by spraying on mustard leaves infested with 50 individuals of third instar larvae of P. xylostella and a density of 1x106 conidia ml-1. Larval mortality was observed every 2 hours and LT50 of larvae was calculated. The study showed that the highest percentage of mortality found in Mt ES and Mt ES (cf) isolates was 99.6%, the lowest mortality at Mt NES isolate was 96.80%. LT50 and LT95 values Bb ES were the lowest i.e. 2.04 days and 2.95 days. The highest LT50 and LT95 of Mt NES isolate were 2.24 days and 3.32 days. The liquid bio-insecticide of entomopathogenic fungus B. bassiana and M. anisopliae were effective to control the larvae of P. xylostella.
POTENSI EUPHORBIA HETEROPHYLLA L. SEBAGAI INANG ALTERNATIF PENYAKIT KUDIS PADA UBIJALAR Eko Agus Martanto .
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 10 No. 2 (2010): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
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Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (437.95 KB) | DOI: 10.23960/j.hptt.210172-177

Abstract

The Potential of Euphorbia heterophylla as an Alternative Host of Scab Disease on Sweet Potatoes. Scab, caused by Elsinoë batatas (Saw.) Jenkins & Viegas, is a major disease on sweet potato. The disease cause reduction in tuber production up to 30%. Euphorbia heterophylla is one of the common weeds in the cultivated land of sweet potatoes which is considered as an alternative host plant of the scab. The objective of this research was to study the ability of E. heterophylla as an alternative host of sweet potato. This study consisted of identification of sweet potatoes scab symptoms and E. heterophylla spot symptoms, isolation of the pathogen of sweet potato scab and E. heterophylla spot, and the test of pathogen virulence on some sweet potato cultivars. The result showed that the scab symptoms on sweet potatoes was brown and concaved caused by fungi E. batatas, while the spot symptoms on the E. heterophylla was white and convex caused by Fusarium sp. The cultivar of sweet potatoes which were inoculated with sick sweet potatoes suspension showed scab symptoms, however no symptoms occurred on the sweet potatoes which were inoculated with suspension of E. heterophylla. Overall, E. heterophylla was not considered to be the alternative host of scab on sweet potatoes.
DIAGNOSIS LIMA PENYAKIT UTAMA KARENA JAMUR PADA 100 KULTIVAR BIBIT PISANG Loekas Soesanto; Endang Mugiastuti; Fajarudin Ahmad; . Witjaksono
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 (547.533 KB) | DOI: 10.23960/j.hptt.11236-45

Abstract

The research which aimed to identify main pathogenic fungi of 100 banana seedling cultivars and their disease intensity was carried out at the Laboratory of Plant Disease, Faculty of Agriculture, Jenderal Soedirman University with samples and field data taking at Indonesian Insitute of Science Bogor. This descriptive research was started by taking samples and field data followed by identification of pathogenic fungi at the laboratory. Variables observed were disease symptoms, colony and pathogenic morphology, kinds of the pathogen, disease intensity, and physical data. Result of the research showed that there were five main pathogenic fungi of the banana seedlings, i.e., Fusarium oxysporum Schlecht. f.sp. cubense, causing Fusarium wilt; Mychosphaerella musicola Mulder, causing Mycosphaerella leaf spot or Sigatoka; Cordana musae (Zimm.) Hohn., causing Cordana leaf spot; Curvularia lunata, causing leaf spot; and Cladosporium musae Mason, causing speckle. From 100 banana seedling cultivars observed, Fusarium oxysporum f.sp. cubense was the most frequently found with the intensity of 1.4-72%, followed by Curvularia lunata, Mychosphaerella musicola, Cladosporium Musae, and Cordana musae with the intensity of 1-32, 2-18, 2-24, and 3-23%, respectively.
JENIS TANAMAN INANG DAN MASA INKUBASI PATOGEN BOTRYODIPLODIA THEOBROMAE PAT. PENYEBAB PENYAKIT KULIT DIPLODIA PADA JERUK Salamiah, Badruzsaufari, dan Muhammad Arsyad .
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 8 No. 2 (2008): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
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Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (124.69 KB) | DOI: 10.23960/j.hptt.28123-131

Abstract

Alternative hosts and Incubation period of Botryodiplodia theobromae the causal of diplodia bark diseases on citrus. Citrus is one of the important horticulture commodities in South Kalimantan. Citrus growers in the region encounter diplodia disease caused by a genus of Botryodiplodia. There is no single method practiced today proved to be effective control for the disease. Insufficient information of the pathogen life cycle is considered to contribute in the failure of disease management. Information of the alternative hosts and incubation period of the pathogens is very crucial in the diseases management. The experiments were carried out at the Laboratory of Plant Diseases and at a Glass House of the Department of Plant Pests and Diseases of the Faculty of Agriculture, Lambung Mangkurat University in Banjarbaru from March – October 2006. The experiments were conducted in three phases, i.e. (1) identification of pathogen, (2) the study of alternative hosts, and (3) the study of incubation periods of the pathogen in the test plants. Results showed that the diplodia disease of citrus “Siam Banjar” was caused by a fungus of the genus Botryodiplodia theobromae. The pathogen can also infected chasew and avocado plants. The Incubation periods of the pathogen in citrus, chasew, and avocado were 64, 39 and 39 days, respectively.
POPULASI DAN SERANGAN LIRIOMYZA SATIVAE (BLANCHARD) (DIPTERA: AGROMYZIDAE), SERTA POTENSI PARASITOIDNYA PADA PERTANAMAN KETIMUN Siti Herlinda, Leny Puspa Rosalina, Yulia Pujiastuti, Erizal Sodikin, dan Aunu Rauf
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 5 No. 2 (2005): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
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Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (132.475 KB) | DOI: 10.23960/j.hptt.2573-81

Abstract

Population and damage by Liriomyza sativa (Blanchard) (Diptera : Agromyzidae) and its parasitoid potential on cucumber fields. The objectives of this research were to figure out adult population of L. sativae and the damage caused by the larvae on cucumber leaves, to analyze the relationship between adult population and the number of leaf mining tunnel caused by L. sativae larvae, and to analyze the relationship betweeen the larval abundance and its parasitoids. The highest adult population (7.60 adults per trap) of L. sativae was found on 5 weeks after planting (WAP) and the lowest (3.20 adults per trap) was on 2 WAP. The highest damage intensity was found on 3 weeks after planting, amounted to 36.89% while the lowest was found on 6 weeks after planting, amounted to 12.12%. The regression coefficient showed that each adult of L. sativae caused one leaf mining tunnel. The higher the number of L. sativae larvae, the more the mining tunnels occured (R = 80.8%). The higher the number of L. sativae larvae in cucumber leaves, the more the larvae parasitized (R = 86.8%). Parasitoids found were Diglyphus sp. (Hymenoptera : Eulophidae) and Neochrysocharis sp. (Hymenoptera : Eulophidae). The highest apparent parasitism was found on 5 weeks after planting, amounted to 41.9%.
PREFERENSI TIKUS SAWAH (RATTUS-RATTUS ARGENTIVENTER) DAN PENGARUHNYA TERHADAP POLA KERUSAKAN PADI VARIETAS DODOKAN DAN CIANJUR Solikhin dan Purnomo .
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 (289.858 KB) | DOI: 10.23960/j.hptt.1823-30

Abstract

Paddyfield Rat (Rattus-rattus argentiventer) Preference and Its Impact on The Damage Pattern of Dodokan and Cianjur Rice Cultivar. A field experiment was conducted during the dry season of 2006 in Central Lampung to evaluate the preference of paddyfield rat (Rattus-rattus argentiventer) to Dodokan and Cianjur rice cultivars in the rice field and its impact on the damage pattern caused by the rat’s attack. The experiment of six treatments and 3 replications were arranged in a randomized completely block design. Each treatment consisted of two rice cultivars i.e. Cisadane and Dodokan. Dodokan cultivar was planted in centre of each experimental unit, surrounded by Cianjur, forming six different patterns (formations) as treatment. All experimental units then were exposed to natural paddyfield rat population. Weekly observations on both cultivars were made to record the damage caused by the rat from 30 to 84 day after transplanting. Aerial view of all treatments were also taken at 84 days after transplanting (a week prior to harvest). The result showed that the paddyfield rat significantly prefered Dodokan rice cultivar to Cianjur. Eventually, the preference of the rat influenced the damage pattern of Dodokan rice cultivar, showed by some unique aerial views of the plot.
IDENTIFIKASI MOLEKULER BROAD BEAN WILT VIRUS 2 (BBWV2) DAN CYMBIDIUM MOSAIC VIRUS (CYMMV) ASAL TANAMAN NILAM (POGOSTEMON CABLIN BENTH.) Miftakhurohmah .; Gede Suastika; Tri Asmira Damayanti; Rita Noveriza
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 (1884.498 KB) | DOI: 10.23960/j.hptt.215188-199

Abstract

Molecular identification Broad Bean Wilt Virus 2 (BBWV2) and Cymbidium Mosaic Virus (CymMV) from patchouli plant (Pogostemon cablin Benth.). Several viruses have been reported to be associated with mosaic disease on patchouli plant in Indonesia. This study aims to identify the two viruses in patchouli cultivation in West Java by studying the molecular characterization. Mosaic symptomatic leaf samples taken from patchouli cultivation in Manoko (Bandung Barat District, West Java Province). RNA extraction was performed using Xprep Plant RNA mini kit. RNA amplification with RT-PCR technique using primers for the cp gene region of BBWV2 and CymMV. The PCR product was sent to PT. Science Genetics Indonesia to do sequencing, then analyzed nucleotide sequences. Results of RT-PCR were performed successfully obtained DNA bands with size accordance with the predictions of the primer design for BBWV2 and CymMV cp region. Further, based on nucleotide and amino acid sequence analyses, the two virus isolates were confirmed as BBWV2 and CymMV respectively. Phylogenetic analyses revealed that BBWV2 Manoko clustered with BBWV2 from Singapore (original host of Brazilian red-cloak), China (pepper) and South Korea (chili). Whereas, CymMV Manoko become one cluster with CymMV from India (Phaius sp.), Indonesia (Dendrobium), China (vanilla), Thailand (Oncidium), Hawai (Dendrobium) and South Korea Cymbidium).
UJI EFEKTIVITAS NEMATODA ENTOMOPATOGEN (RHABDITIDA: Steinernema DAN Heterorhabditis) SEBAGAI MUSUH ALAMI NON-ENDEMIK PENGGEREK BATANG PADI KUNING (Scirpophaga incertulas) Chaerani dan Bebet Nurbaeti .
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 7 No. 2 (2007): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
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Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (101.174 KB) | DOI: 10.23960/j.hptt.2771-79

Abstract

Efficacy Tests of Entomopathogenic Nematodes (Rhabditida: Steinernema dan Heterorhabditis) as Non-endemic Natural Enemies of Yellow Rice stem Borer (Scirpophaga incertulas). Yellow rice stem borer (Scirpophaga incertulas) is a chronic insect pests of irrigated rice and difficult to control. Entomopathogenic nematodes from the genus Steinernema and Heterorhabditis are promising biological control agents for this pest as their infective juveniles (IJs) are capable of seeking and infecting insect living in moist, cryptic habitat such as galleries created by stem borer larvae. Thirteen indigenous and exotic Steinernema and Heterorhabditis sprayed to rice seedlings in laboratory with nematodes at concentrations of 0.5 or 2.0×104 IJs ml-1 water caused larval mortality between 7–93%. Further test in greenhouse on nematodes that had >50% efficacy showed that an indigenous isolate, H. indicus INA H17, was the most effective among the tested nematodes in killing larvae or pupae (78%). Reduction in plant damage caused by the insects could not be demonstrated as the trials was limited to potted plants. The survival ability of nematodes on rice plants was evaluated by using INA H4 as an example. A low percentage of INA H4 IJs (0.5%) persisted in inner leaf sheath until 7 days post application, while IJs on leaf surface and outer leaf sheath survived only until 2 and 48 hours post application, respectively. Improvement of application strategies including repeated spray, addition of antidessicant and adjusment of spray volume and application at damage threshold or plant critical period are deemed necessary to enhance nematode efficacy and reduce plant damage in the field.

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