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JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA

JHPT TROPIKA
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Published by Universitas Lampung

ISSN : 14117525 EISSN : 24610399 DOI : -

Core Subject : Agriculture,

Agriculture, Biological Sciences & Forestry

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.

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Articles 521 Documents

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KERAGAMAN SERANGGA PADA TANAMAN CABAI (CAPSICUM ANNUUM) YANG DIBERI PESTISIDA SINTETIS VERSUS BIOPESTISIDA RACUN LABA-LABA (NEPHILA SP.) Yayan Sanjaya; Anna L.H. Dibiyantoro
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 12 No. 2 (2012): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
Publisher : Universitas Lampung

The objective of this research was to compare the diversity of insects in chili plant agroecosystem treated with synthetic pesticide versus that treated with biopesticide (venom of spider Nephila sp.) Two plots of chili pepper plants, each sized 600 m2, located at Ciwidey area Bandung –West Java, were taken as the sample plots. The first plot was weekly treated with profenofos insecticide (50% active ingredient, a.i.) while the second plot was treated with biopesticide (70% a.i. spider venom extracted from Nephila sp.), each at 35 ml/17 L rate of spray solution. Sweep net was used to sample insects along two transects in each plot. Result showed that 14 families of 8 insect orders were found in pesticide-treated plot while 15 families of 9 orders were found in biopesticide-treated plot. The evenness index and diversity index of insects in plot treated with biopesticide were relatively higher than those in pesticide-treated plot. In contrast, dominance index in biopesticide plot was lower than that in synthetic pesticide plot. Thrips sp.(Thysanoptera: Thripidae) was found to be the most dominant species in both plots.

STRUKTUR KOMUNITAS HYMENOPTERA PARASITOID PADA TUMBUHAN LIAR DI SEKITAR PERTANAMAN PADI DI DAERAH ALIRAN SUNGAI (DAS) CIANJUR, JAWA BARAT Yaherwandi, S. Manuwoto, D. Buchori, P. Hidayat, dan L.B. Prasetyo.
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 8 No. 2 (2008): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
Publisher : Universitas Lampung

Hymenoptera Parasitoid Community Structure on Non-crops Vegetation Around Rice fields in Cianjur Watershed, West Java. Hymenoptera parasitoids have an important role in agroecosystem because of their ability in suppressing pest population. Their presence in the field is seen as the key to agricultural ecosystem. Their presence can be influenced by the availability of non-crop vegetation. Some adult Hymenoptera parasitoids require food in the form of pollen and nectar of wild flowers to ensure effective reproduction and longevity. The objective of this research was to study Hymenoptera parasitoid communities in non-crop vegetation around rice fields at Cianjur Watershed. Samplings were conducted at three different landscape, i.e. Nyalindung, Gasol and Selajambe West Java. Insects were sampled by two trapping techniques (farmcop and sweep net) in two lines of transect for each landscape. A total of 257 species from 25 families of Hymenoptera parasitoids were collected in non-crop vegetation at Cianjur Watershed. Landscape structure, flowering vegetation, and pesticide application affected the species richness, diversity and evenness of Hymenoptera parasitoid in non-crop vegetation.

DETEKSI TURNIP MOSAIC VIRUS PADA JARINGAN BENIH DAN DAUN Kartiningtyas dan Sri Hendrastuti Hidayat .
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 6 No. 1 (2006): MARET, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
Publisher : Universitas Lampung

Detection of Turnip mosaic virus in seed and leaf tissue. The study was conducted to test the seed transmission efficiency of Turnip mosaic virus (TuMV) on caisin (Brassica rapa) and the susceptibility of plant to the virus at different ages. Two detection techniques, ELISA and RT-PCR, were used to determine the more appropriate method for detection of TuMV. Two different sources of seeds involved those from farmer and commercial seeds were collected from West Java and Central Java. TuMV was inoculated on test plants at 2, 4, 6, 8, and 10 weeks after transplanting. Infected plants were confirmed using ELISA and RT-PCR techniques with specific antiserum and primer. TuMV was detected from farmer seeds originated from Ciherang and Cinangneng with percent infection of 15% and 2% , respectively. Plant growth and symptom development were affected by time of infection. In general, TuMV infection caused symptoms, mosaic, malformation, vein clearing, and blister on the leaf. The youngest plants were more susseptble and shown more severe symptoms. Absorbent value of ELISA from infected plants was in the range of 2.1 – 2.4. Spesific DNA band, 800 bp, was amplified from infected plants.

Pola Segregasi Sifat Ketahanan Terhadap Soybean Stunt Virus dan Keragaman Genetik FAMILI F2:3 HASIL PERSILANGAN VARIETAS ORBA DAN GALUR B3570 Hasriadi Mat Akin, Emi Lidya Astri, dan Maimun Barmawi .
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 9 No. 1 (2009): MARET, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
Publisher : Universitas Lampung

Segregation pattern of the Soybean Stunt Virus resistant character and genetic diversity of F2:3 families derived from crosses between Orba and B3570. Soybean stunt disease caused by SSV (Soybean Stunt Virus) is the most destructive soybean disease in Indonesia. This research was conducted from October 2005 to June 2006 at experiment station of Lampung University. The aims of this research were to evaluate the segregation of resistant characters and total genetic diversity of eight populations of F2:3 families. Experiment was arranged in a randomized complete block design with three replications. The resistance was evaluated based on the score of disease severity. The results showed that the resistant characters segregate 1:2:1 to susceptible, moderately resistant, and resistant, respectively based on the segregation pattern. The resistant character was controlled by single gene and the action of the gene is noncompletely dominant gene. Eight populations of F2:3 families have high diversities on the yield and yield components.

KETAHANAN BEBERAPA GENOTIPE PADI TERHADAP PENYAKIT HAWAR DAUN BAKTERI (XANTHOMONAS ORYZAE PV. ORYZAE) Wira Hadianto; Lukman Hakim; Bakhtiar .
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 15 No. 2 (2015): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
Publisher : Universitas Lampung

The resistance rice genotypes against bacterial leaf blight (Xanthomonas oryzae pv. oryzae). The research was conducted to analyze genotypes of rice that were resistant to bacterial leaf blight (BLB) disease. The experiment was conducted at the screen house of Faculty of Agriculture, Syiah Kuala University, Banda Aceh from February to October 2014. This experiment was arranged in randomized complete block design with 73 treatments and 3 replications. IR-BB27 and IR-64 were used as control of resistant and susceptible varieties to BLB, respectively. The result showed that the bacterial isolates tested were virulent. The longest incubation period found in Limboto, Inpari 10, Situ Patenggang, Sirendeh Semantuk Wayla, Tamboen, Sepasie, Bontok and Arias. Genotypes Inpari 1, Limboto, Tuwoti, Inpari 10, Lekat Rambot Linuet, Rom Mokot, Paki Gajah, Tamboen, Bo 100, Sipasie, Bo Minyek, Bontok, Sirendeh Semantuk Wayla and Sambei showed resistance reaction to bacterial leaf blight disease.

KEEFEKTIFAN EKSTRAK MENGKUDU PADA BERBAGAI KONSENTRASI TERHADAP PENGHAMBATAN PERTUMBUHAN BAKTERI RALSTONIA SP. SECARA IN VITRO Efri dan Titik Nur Aeny .
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 4 No. 2 (2004): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
Publisher : Universitas Lampung

Effectivity of Morinda citrifolia extract on in-vitro growth inhibition of Ralstonia sp. Morinda citrifolia has been known as one of plants having numerous medicinal properties. Extract of the fruits shows antibacterial activity against several bacteria including Pseudomonas aeruginosa. The purpose of this study was to observe inhibitor effect of M. citrifolia fruit extract, and to investigate the effect of different concentrations of M. citrifolia fruit extract on in-vitro growth of Ralstonia (Pseudomonas) sp., the causal agent of banana bacterial wilt disease in Lampung. Inhibition effect of M. citrifolia was determined by the presence of inhibition zone, and concentration effect was determined by the diameter of inhibition zone . The study consisted of two experiments. The treatments of the first experiment were three different kinds of fruit extract, namely the whole fruit, the seeds, and the fleshy parts, and the second one consisted of six different levels of extract concentrations. The results showed that the whole fruit extract was the most effective as an in-vitro growth inhibitor, and the higher the concentration level the higher the growth inhibition zone formed.

RESPON BEBERAPA VARIETAS KEDELAI (GLYCINE MAX (L.) MERRIL) TERHADAP INFEKSI PEANUT STRIPE POTYVIRUS Hasriadi Mat Akin dan Muhammad Nurdin .
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 2 No. 2 (2002): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
Publisher : Universitas Lampung

Response of various soybean varieties [Glycine max (L.) Merril] againts peanut stripe potyvirus infection. This experiment was conducted to investigate the effect of PStV infection on soybean growth of various soybean varieties. Treatments were arranged in completely randomized design in split plot experiment with four replications. Main plots were virus-inoculated and uninoculated plants; subplots were eight soybean varieties (Wilis, Orba, MLG2521, Amerikana, Yellowbean, B3570, Slamet and Taichung). The results showed that infection decreased soybean growth indicated by reduction dry weight of soybean plant and reduction of soybean yield. Slamet variety compared to other varieties showed susceptible reaction indicated by the shortest incubation period (9,75 days), significant reduction of dry weigh of soybean plant, and the highest reduction of soybean yield (23,6%). Thaicung variety showed resistant reaction indicated by longest incubation period (14,3 days) and insignificant reduction of soybean growth and yield.

PEMANFAATAN KITOSAN UNTUK PENGENDALIAN BEAN COMMON MOSAIC VIRUS (BCMV) PADA KACANG PANJANG Tri Asmira Damayanti; . Haryanto; Suryo Wiyono
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 13 No. 2 (2013): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
Publisher : Universitas Lampung

Utilization of chitosan to control Bean common mosaic virus (BCMV) on yard long bean. Bean common mosaic virus (BCMV) is one of important viruses infecting yard long bean in Indonesia. One of efforts to control its infection is by utilizing chitosan. Thus, the aim of the conducted research was to test the effectiveness of chitosan in controlling BCMV on yard long bean. Concentration of chitosan tested were 0.1% and 1.0% and it was applied as seed treatment (PB), leaf spraying before (SB) and after (ST) mechanical inoculation of BCMV. Incubation period, disease incidence and severity, peroxidase enzyme activity, and BCMV titer were measured as observation parameters. Incubation period of all treated plants were longer as compared with untreated control plants. Symptoms of treated plants at concentration 0.1% (SB and ST) showed mild to severe symptom and leaf malformation, while at concentration 1.0% showing milder symptoms and some of tested plants remain symptomless. Treated plants showed lower peroxidase enzyme activity and significantly lower BCMV titer as compared with that of untreated control plants. The lowest to highest percentage of virus inhibition exhibited by ST0.1, SB0.1, PB0.1, PB1, SB1 and ST1 treatments with virus relative inhibition level ranged 75.94%-86.07% and severity inhibition level ranged 39.55%-64.63%.

EFFECT OF NEMATODE POPULATION DENSITIES ON TRAPPING ACTIVITY OF NEMATOPHAGOUS FUNGUS Arthrobotrys dactyloides ON Meloidogyne javanica . Sudirman
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 11 No. 1 (2011): MARET, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
Publisher : Universitas Lampung

Trapping activities of some nematophagous fungi were suggested to be related to the population density of nematodes. This study determined the trapping activity of Arthrobotrys dactyloides due to the effects of (i) different populations of Meloidogyne javanica, (ii) the presence of Caenorhabditis elegans, (iii) repeated inoculation of M. javanica, and (iv) different populations of both C. elegans and M. javanica. Experiments were conducted using a “standard slide test” and “soil microcosm” inoculated with A. dactyloides formulated in kaolin-alginate granules and with low nematode populations ranged from 6 to 14 juveniles per g soil. Results showed that ring formation and trapping activity of A. dactyloides increased with the increase of M. javanica population. The presence of C. elegans increased M. javanica mortality. Repeated inoculation of M. javanica maintained trapping activity of A. dactyloides. The mortality of M. javanica increased with the increase of both C. elegans and M. javanica population.

KEANEKARAGAMAN HYMENOPTERA PARASITOID PADA PERKEBUNAN KELAPA SAWIT PTPN VIII CINDALI, BOGOR Putra, Ichsan Luqmana Indra; ., Pudjianto; Maryana, Nina
JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA Vol 16, No 2 (2016): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
Publisher : Universitas Lampung

Diversity of parasitic Hymenoptera in PTPN VIII oil palm plantation Cindali, Bogor. One group of important natural enemies in oil palm plantation is parasitic Hymenoptera. The purpose of this research is to know the diversity and fluctuation of parasitic Hymenoptera PTPN VIII Cindali oil palm plantation. This research was conducted in 6 blocks of oil palm in September 2014 â June 2015. There were 5 plots in every observation blocks 39.2 x 39.2 m in size, and used direct and indirect method. Direct method done by 5 plants in every plots was taken randomized to observed and taken the herbivore insects to reared until the parasitic Hymenoptera came out. Observation of cover crops conducted by 3 subplots determined diagonally in every plots 9.8 x 9.8 m in size and herbivore insects was observed and collected. Indirect methods used sweep net and yellow pan trap. The result of this research, 26 parasitic Hymenoptera families was found, with the Braconidae was the most morphospecies found and the most individual amount was Scelionidae. The abundance of parasitoid in every month fluctuated.

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