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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
EFISIENSI PARASITISASI INANG SPODOPTERA LITURA (F.) OLEH ENDOPARASITOID SNELLENIUS MANILAE ASHMEAD DI LABORATORIUM Endang Sri Ratna .
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 8 No. 1 (2008): MARET, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (150.07 KB) | DOI: 10.23960/j.hptt.188-16

Abstract

Eficiency of parasitization on larval host, Spodoptera litura (F.), by an endoparasitoid Snellenius (=Microplitis)manilae Ashmead in the laboratory. The armyworm, Spodoptera litura (F.) is the host of an endoparasitoid Snelleniusmanilae Ashmead. This research described the effect of host larval stage preference, the number of host exposure and theage of parasitoid on the resulting parasitization. Each group of the first to the fifth of host instar (30 larvae) was exposed for3 hours to a pair of four-day old parasitoids in a trial cage. The same exposures were conducted without choices by placingeach instar group within each trial cage. The parasitoid survival was observed by maintaining the parasitized larvae untiladult emergence. Each group of 10, 20, 30 and 40 of the second instar larvae were exposed for 12 hours/day to a matedfemale parasitoid. This experiment was conducted from the first day old parasitoid until the females died. The percentageof parasitization, superparasitization, oviposition and the fecundity of adults were recorded. Each group of thirty secondinstar larvae was exposed separately to a mated female parasitoid of 1 to 9 days old. The survival of progeny was recorded.All treatments in this observation were repeated 10 times. S. manilae preferred to lay eggs on the third (41.7%) followed bythe second (22.3%) instar larvae of S. litura. The lowest percentages of superparasitization obtained from the first and thesecond instar larvae were between 11 and 15% and the highest percentage of superparasitization obtained from the fourthinstar larvae was 52%. The highest survival of parasitoid was found on the exposure of the second instar larvae whichreached 16%. The highest efficiency of parasitism (80.9%) was found on the twenty of the second instar larval exposuredensity which produced 59% of optimal parasitization level, the average rate of egg laid by females was 25 eggs/day, andthe fecundity was 185 eggs/female. Female parasitoids of 1-7 days old gave the same opportunity to produce progenysurvival which was in the range of 10.3-25.7%.
EKSPLORASI DAN UJI SENYAWA BIOAKTIF BAKTERI AGENSIA HAYATI UNTUK PENGENDALIAN PENYAKIT KRESEK PADA PADI Sri Kurniawati; Kikin Hamzah Mutaqin; Giyanto .
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 (244.946 KB) | DOI: 10.23960/j.hptt.215170-179

Abstract

Exploration of bacterial biocontrol agent and its potential bioactive compound to control rice bacterial leaf blight. The research aims were to obtain bacterial isolates which were potential as biological control agent of X. oryzae pv. oryzae, the causal agent of rice bacterial blight and to assess the effectiveness of their bioactive compounds, and to identify of the potential isolates. The research steps included bacterial isolation, screening based on antibiosis activity and pathogenicity test, characterization based on chitinolytic enzyme production, siderophores, and phosphate dissolution test, effectiveness test of bioactive compounds and molecular identification of potential isolates. Out of 156 bacterial isolates from rice crop tested, 11 isolates showed to be non plant pathogenic and to have activity as biological agents against X. oryzae pv. oryzae pathotype III, IV and VIII. Further characterization of 11 isolates resulted in 2 isolates that showrd ability to produce chitinase (isolates T5-1118 and R7-1018), phosphatase (isolates T5-1105 and T6-1109), and siderophores (isolates T5-1118 and T6- 1109). The test of bioactive compound effectiveness of 4 isolates to the growth of X. oryzae pv. oryzae showed thatT5-1118, T5-1105, T6-1109 and R7-1018 have ability to inhibit X. oryzae pv. oryzae at 48 hours after inoculation of 66,61%, 62,4%, 23,97% and 12,40%, respectively. Identification of 4 bacterial biocontrol isolates with partial sequencing of 16S rRNA gene showed that those bacteria are close to Bacillus nealsonii strain F22 (R7-1018), Chromobacterium sp. MWU328 (T5-1118), Streptomyces sp. Antag 1 (T5-1105) and Kitasatospora nipponensis strains H2-4 (T6-1109).
PEMETAAN PERSEBARAN PENYAKIT BUNCHY TOP PADA TANAMAN PISANG DI PROVINSI LAMPUNG Joko Prasetyo dan Sudiono .
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 (1059.889 KB) | DOI: 10.23960/j.hptt.2494-101

Abstract

Distribution mapping of bunchy top of banana in Lampung Province. Studies on the occurrence of banana bunchy top were conducted in Lampung province from March to May 2003. This study were aimed to make distribution map of banana bunchy top in Lampung. The stratified random sampling were used. The sample comprised 6 districts out of 10 districts in Lampung. Three subdistrics were randomly selected in each district and then 3 villages were also selected in each subdistrict. In each village 3 famer”s gardens were selected as observation area. The distribution map shows that banana bunchy top has spread throughout the 6 districts visually observed, but only 4 districts, that bunchy top incidence could be examined. Banana bunchy top incidence in Bandar Lampung, South Lampung, Central Lampung, and North Lampung were 2.31, 2.23, 1.06, and 0.84 % respectively. Bunchy top virus attacked various types, among them are janten (55.23%), muli (38.88%), kepok (30.47%), ambon (21.52%), raja sere (19.76%), nangka 4.64%), and lilin (3.84%). There were no disease incidence on cultivar tanduk, rejang and susu, thus this fact might be indicated resistance phenomena of these cultivars.
EVALUASI TINGKAT PARASITISASI PARASITOID TELUR DAN LARVA TERHADAP PLUTELLA XYLOSTELLA L. (LEPIDOPTERA: YPONOMEUTIDAE) PADA TANAMAN KUBIS-KUBISAN Nila Wardani dan Amrizal Nazar .
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 2 No. 2 (2002): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (47.817 KB) | DOI: 10.23960/j.hptt.2255-59

Abstract

Evaluation of parasitization of egg and larvae parasitoids to Putella xylostella L. (Lepidoptera: Yponomeutidae) on crucifers. Diamond back moth Plutella xylostella is an important pest of cabbage in Indonesia. Trichogramma (egg parasitoid) and Diadegma (larvae parasitoid) are the main parasitoid of diamond back moth. This study was conducted as survey methods in several region in West Java. The results indicated that level of parasitism by egg parasitoid (40.45%) was higher than larvae parasitoid (15.98%).
PENGARUH APLIKASI PSEUDOMONAS FLUORESCENS P60 TERHADAP MUTU PATOLOGIS, MUTU FISIOLOGIS, DAN PERTUMBUHAN BIBIT PADI IR 64 Lisa Navitasari; Loekas Soesanto; Ahadiyat Yugi Rahayu
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 13 No. 2 (2013): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (207.364 KB) | DOI: 10.23960/j.hptt.213179-190

Abstract

Effect of Pseudomonas fluorescens P60 on pathological and physiological quality and growth of rice IR 64 seedlings. The research objectives were (1) detection and identification of seed-borne pathogens of IR 64 rice, (2) testing Pseudomonas fluorescents P60 in inhibiting the in vitro growth of seed-borne pathogens colonies, (3) testing P. fluorescents P60 for pathological and physiological seed quality, and (4) testing P. fluorescents P60 on the growth of seedlings in the greenhouse. The results showed that some seed-borne pathogens can be found both on farmers’ IR 64 rice and factory’s; they were Aspergillus flavus, Alternaria padwickii, Pseudomonas glumae, and P. syringae. Application of P. flourescens P60 was able to inhibit the in vitrogrowth of colonies of all seed-borne pathogens, except P. syringae. Related to pathological quality, the effect of P. flourescens P60 on percentage of seed-borne pathogens attack did not significantly different from that of benomil but smaller than distilled water. On the physiological quality of seeds, treatment of P. flourescens P60 has the same effect with benomil and distilled water, with germination rate was more than 80%. In the greenhouse study,treatment of seed immersion time in P. flourescens P60 suspension showed that the effect of immersion time as long as15 minutes and 25 minutes on seedling height, root length, and seedling dry weightdid not significantly different. were. However, 25 minutes immersion time resulted in fresh seedling weight and root dry weight higher than that of 15 minutes immersion time.
HUBUNGAN ANTARA CURAH HUJAN DAN LUAS SERANGAN BELALANG KEMBARA (Locusta migratoria manilensis Meyen) DI PROVINSI LAMPUNG Hamim Sudarsono; Rosma Hasibuan; I Gede Swibawa
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 (431.171 KB) | DOI: 10.23960/j.hptt.11195-101

Abstract

Population outbreak of the oriental migratory locust, Locusta migratoria manilensis Meyen (Orthoptera: Aciridae), in Lampung between 1990’s to 2000’s has caused serious economic loss to agriculture. Anticipation of the pest outbreak is required to prevent serious loss in the future; one of possible approach is by analyzing data of rainfall and locust damage area. The study was aimed to analyze the relationship between rainfalls and area of damage caused by locust population in rice and corn fields using 17 years period of data from Lampung Province. The results indicate that locust damage occurred when there were high rainfalls followed low ones at wet season. Time lag of 8 month was determined as the period needed for L. migratoria manilensis to raise its population when the pest has developed gregarious colonies in the region. Rainfalls between 248,27 mm/month (on corn fields) to 287,06 mm/month (on rice fields) were optimum for the initiation of the locust population increase after a period of dry weather in the region. Results of autocorrelation tests indicate that the occurrence of locust damage in an area would be followed by population increase in a region where gregarious colonies have developed.
PENGARUH FORMULASI DAN LAMA PENYIMPANAN PADA VIABILITAS, BIOAKTIVITAS DAN PERSISTENSI CENDAWAN METARHIZIUM ANISOPLIAE TERHADAP CROCIDOLOMIA PAVONANA FABRICIUS ., Nuraida; Lubis, Aisyah
JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA Vol 16, No 2 (2016): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (101.548 KB) | DOI: 10.23960/j.hptt.216196-202

Abstract

Effects of formulations and storage length on the viability, bioactivity and persistence of Metarhizium anisopliae against Crocidolomia pavonana Fabricius. Crocidolomia pavonana Fabricius (Lepidoptera: Pyralidae) is important pest on vegetables form Brassicaceae family, that required to be control. Metarhizium anisopliae entomopathogenic fungus is one potensial of the biological agent that can be used to control C. pavonana. This study aimed to investigated the effect of storage duration on viability, bioactivity and persistence of M. anisopliae after formulated to control C. pavonana. Laboratory experiment was arranged in completely randomized design with the treatment was storage duration that included 2,4,6,8 and 10 weeks that replicated three trials. The variabels to be measured were viability and bioactivity at concentrations106, 107, and108. Field experiment used T Student test with treatment was duration of M. anisopliae formulation survive and its persistence on C. pavonana. Laboratory experiment results showed that the best storage duration of formulation on Metarhizium viability was pellet frmulation at 4th week 4 after storage. While the best bioactivity was pellet formulation with concentration 107 at 10 weeks after storage. Field experiment results showed that M. anisopliae formulation could be survived and its persistence to control pests C. pavonana until 4th day after application, either pellet or powder formulation. 
PENGARUH PENYUNGKUPAN DAN PENGGUNAAN INSEKTISIDA TERHADAP POPULASI KUMBANG DAUN DAN KERUSAKAN PADA TANAMAN SAWI Mirra Octavianty; Imas Vita Mulisa Murni; F.X. Susilo
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 12 No. 2 (2012): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (254.428 KB) | DOI: 10.23960/j.hptt.212138-145

Abstract

This study was aimed to test the efficacy of plant caging and insecticide treatment on the leaf beetle abundance and leaf beetle-induced damage on mustard plants. The field experiment consisted of three treatments (caging, insecticide and control) that were set in a completely randomized design with six replicates. Bamboo-framed screen cloth was used as cage while alfametrin was applied at recommended rate. The response variables were leaf beetle abundance (observed using a direct count method) and damage on mustard plants (percentage of severity and incidence). Result showed that plant caging effectively reduced pest abundance, damage severity (43%) and damage incidence (83%). Alfametrin spray slightly reduced leaf beetle abundance, damage severity (12%) and damage incidence (5%). Leaf beetle abundance positively correlated with damage severity (R2 = 0.714). Addition of one leaf beetle individual increased damage severity of 5%
PATOGENISITAS JAMUR KARAT (PUCCINIA PHILIPPINENSIS Syd.), PADA GULMA TEKI (CYPERUS ROTUNDUS L.) M.T. Fauzi .
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 9 No. 2 (2009): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (178.503 KB) | DOI: 10.23960/j.hptt.29141-148

Abstract

The pathogenicity of a rust fungus (Puccinia philippinensis Syd.), on purple nutsedges (Cyperus rotundus L.). A research aimed at understanding the pathogenicity of a rust fungus (Puccinia philippinensis Syd.), a potential biological control agent of purple nutsedges (Cyperus rotundus L.) had been conducted in a glasshouse of Faculty of Agriculture the University of Mataram. These factorial experiments designed according to Randomized Completely Design (CRD) and consisted of spore density and time of application. Spore density treatments consisted of 0, 5000, 10 000, 15 000, 20 000, 25 000, or 30 000 spore/mL applied either in the morning or in the afternoon. The results showed that the higher the spore density, the higher the number of pustules formed, the higher the disese intensity, and the faster the disease progressed. Urediniospores applied in the afternoon produced more pustules, higher disease intensity, and faster disease progression compare to those applied in the morning.
POTENSI ERIONOTA THRAX SEBAGAI AGEN PENYEBAR PATOGEN PENYEBAB PENYAKIT LAYU BAKTERI PADA TANAMAN PISANG (BLOOD DISEASE BACTERIUM) Radix Suharjo, Edhi Martono, dan Siti Subandiyah .
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 6 No. 2 (2006): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (516.148 KB) | DOI: 10.23960/j.hptt.26100-106

Abstract

Potential of Erionota thrax to spread the causal agen of banana bacterial wilt (Blood Disease Bacterium). This study was conducted in Gerbosari, Samigaluh, Kulonprogo, Yogyakarta and in the Laboratory of Bacteriology and Entomology, Faculty of Agriculture, Gadjah Mada University, Yogyakarta during December 2002 to June 2003. The aim of this study was to find out the potency of Erionota thrax to spread Blood Disease Bacterium the causal agent of banana blood disease in Indonesia. A field survey was conducted to record the existance of Blood Disease Bacterium in larvae and adult E. thrax. The results show that Blood Disease Bacterium was not found in the larval stage of E. thrax. In the adult of E. thrax, the pathogen was found on the legs, wings, body surface, head and head surface, but it was not found inside the body of E. thrax.

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