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Y. Andi Trisyono
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INDONESIA
Jurnal Perlindungan Tanaman Indonesia
Published by Universitas Gadjah Mada
ISSN : 14101637     EISSN : 25484788     DOI : -
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Arjuna Subject : -
Articles 8 Documents
 1 
Search results for , issue "Vol 13, No 1 (2007)" : 8 Documents clear
Perkembangan Populasi Empoasca sp. (Homoptera : Cicadelidae) di Kebun Teh Pagilaran Pachrudin Pachrudin; Witjaksono Witjaksono; Arman Wijonarko
Jurnal Perlindungan Tanaman Indonesia Vol 13, No 1 (2007)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpti.11812

Abstract

Empoasca sp. was first reported as pest in West Java tea plantation in 1998. In 2000, this cicadellid was also found in Pagilaran tea plantation in Central Java. The aim of this research was to observe the preferences of Empoasca sp. to tea cultivars and the effect of altitude and climate factors to population dynamics of Empoasca sp. the result showed that Kiara 8 cultivar planted in 700 - 850 m asl was highly susceptible to Empoasca sp. The lowest population and the least damage was found in PS 1 cultivar which has leaves with the densest hair. Intensity of the rain-fall was likely to have higher impact to population of Empoasca sp. rather than humidity and temperature.
Kisaran Inang dan Keragaman Gejala Infeksi Turnip Mosaic Virus Eliza Suryati Rusli; Sri Hendrastuti Hidayat; Gede Suastika; Utomo Kartosuwondo
Jurnal Perlindungan Tanaman Indonesia Vol 13, No 1 (2007)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpti.11779

Abstract

The incidence of mosaic disease on vegetable crops in Indonesia has been reported recently. The disease is caused by TuMV which is considered as a new and important virus on caisin and turnip in Indonesia. Field survey has been conducted to determine disease incidence in vegetable growing areas. Symptom variability and host range of TuMV was further studied through mechanical inoculation to cruciferae and solanaceae plants. Observation during field survey has proved that TuMV has infected caisin and turnip in Java and Bali. The highest intensity of mosaic disease i.e. 63,3% occurs in Tumpangan-Malang, followed by Denpasar Selatan and Bandungan-Semarang with the intensity of 30,5% and 19,0% respectively. TuMV infection causes different types of symptoms, such as: wrinkled leaf, blistered leaf, vein banding, vein clearing, leaf distortion and proliferation. The host range of TuMV involves those plants belong to cruciferae (cabbage, broccoli, caisin, turnip, cauliflower, chinese cabbage, pak coy); solanaceae (N. tabacum, N. benthamiana, N. glutinosa); and chenopodiaceae (C. amaranticolor). Furthermore, N. glutinosa can be used as differential host for TuMV isolates.
Characterization of A Baculovirus of Spodoptera litura (Lepidoptera : Noctuidae) Isolated from Yogyakarta Arman Wijonarko; Sedyo Hartono; Tri Harjaka; Nuri Yusmarlita
Jurnal Perlindungan Tanaman Indonesia Vol 13, No 1 (2007)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpti.11813

Abstract

A Baculovirus has been isolated from cadaver of larvae of Spodoptera litura, a Noctuidae of agricultural pest, importance due to its wide-range hosts and the damage to their respective host. Phase contrast light microscopy observation from infected larvae showed that the fat body, hemocyte cells, and cells surrounding the trachea or tracheolus were the most tissue invaded by polyhedra. Transmission electron microscopy analysis of the occlusion body purified from diseased larva showed that the baculovirus envelope containing multiple nucleocapsid. Digestion of viral DNA with three restriction enzymes showed that the genome pattern of baculovirus isolated from Bantul were close to SpliNPV isolated from Japan and those of Spodoptera littoralis and quite distinct from those isolated from Southeast Asia region. Bioassay test performed on first to fifth instar larvae showed that the virus effectively control the young larvae, but showed some level of resistance against older larvae of Spodoptera litura.
Keragaman Genetika Xanthomonas axonopodis pv. glycines Asal Kedelai Varietas Edamame di Indonesia Andi Khaeruni; Antonius Suwanto; Budi Tjahjono; Meity S. Sinaga
Jurnal Perlindungan Tanaman Indonesia Vol 13, No 1 (2007)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpti.11814

Abstract

Xanthomonas axonopodis pv. glycines cause bacterial pustule disease caused a serious disease in Edamame cultivation in Indonesia. We collected a total of 29 X. axonopodis pv. glycines isolates from Edamame fields at Jember, Ciawi, Cipanas and Bogor. The genetic diversity analysis of all isolates employing ARDRA and ISR technique showed six and seven different DNA profile, respectively. Therefore there are at least seven strains of X. axonopodis pv. glycines infected Edamame in Indonesia. Both CPI from Cipanas and JA4 from Sukorejo Jember isolates possess unique DNA profle and genetically are not closely related to other isolates.
Deteksi Begomovirus pada Cabai Secara Cepat melalui Isolasi Genom DNA Sri Sulandari; Rusmilah Suseno; Sri Hendrastuti Hidayat; Soemartono Sosromarsono; Jumanto Harjosudarmo
Jurnal Perlindungan Tanaman Indonesia Vol 13, No 1 (2007)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpti.11805

Abstract

Pepper yellow leaf culr disease has been widely spreading in Indonesia, especially in Special Province of Yogyakarta and Central Java since 2000. The disease is difficult to control because its fast spreading over in the field by the vector. To prevent epidemic of the disease, early detection method of the causal agent is needed. The aim of the research was to detect the causal agent of the pepper yellow leaf curl disease by isolating the DNA genome. Using the Guanidine-alkaline method, two specific fragments of the DNA were produced approximately at 2600 bp and 1600 bp. The DNA fragments were similar with the DNA genome of Begomovirus. The method applied in this study is faster and easier for early detection of the Begomovirus in infected crop than detection by the Polymerase chain reaction (PCR).
Analisis Spasiotemporal Populasi Lalat Sciarid pada Budidaya Jamur Tiram Rostaman Rostaman; Agus Dana Permana; Tati S. Subahar; Soelaksono Sastrodihardjo; Udjianna Pasaribu
Jurnal Perlindungan Tanaman Indonesia Vol 13, No 1 (2007)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpti.11776

Abstract

Sciarid fly (Bradysia ocellaris Comstock) population growth and its distribution in the mushroom house was studied. Insects were collected using sticky yellow traps laid on 21 stations in the house over 18 weeks. At the first time, insects population was low. After that, insect population grew and reached at a maximum level in the 8th week. In subsequent weeks, insect population fluctuated. In the other hand, insect population dispersal also occured in the house. Based on spatiotemporal analysis using contour map and semivariogram analysis, insect population showed aggregation pattern, in a small group is called subpopulation. This was related to biological characters of insect such as eggs oviposition in mass and short flights.
Biologi Diachasmimmorpha longicaudata (Ashmead) (Hymenoptera : Braconidae) Parasitoid Larva Lalat Buah Achmad Nasroh Kuswadi; Toto Himawan; Asep Ruhiyat Suherlan
Jurnal Perlindungan Tanaman Indonesia Vol 13, No 1 (2007)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpti.11809

Abstract

Biology of D. longicaudata, larval parasitoid of Bactrocera carambolae (Drew & Hancock) fruit fly was studied in the laboratory. Observation on ten pairs of adults, each pair confined in a laboratory cage, provided with third instar larvae of B. carambolae as their host, showed that the wasps mated 6-14 days after they emerged. They mated 2-5 times in their life time. Female wasps laid eggs until 18 days old, 1-6 eggs per day, with the average number of 58 eggs. Unmated female was able to lay viable eggs (parthenogenesis) that grew to male parasitoids (arrenotoky). The life cycle of D. longicaudata extended within 16 - 22 days. The eggs hatched 1-2 days after oviposition. Duration of the 1st, 2nd, 3rd and 4th instar larvae and the pupal stage were 1-2 days, 2-3 days, 3-4 days, 4-6 days and 4-5 days, respectively. First instar larvae was an active life stage, living in the third instar larvae of the host, while the following 2nd - 4th instar were inactive, living in the upae of the host. Adult parasitoid emerged from the puparium of host. In general, male wasp emerged 2-5 days earlier than the female.
Penekanan Penyakit Lincat Tembakau Temanggung dengan Streptomyces spp. Triwidodo Arwiyanto; Kharis Haryono; Achmadi Priyatmojo; Toekidjo Martoredjo; Gembong Dalmadiyo
Jurnal Perlindungan Tanaman Indonesia Vol 13, No 1 (2007)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpti.11777

Abstract

Streptomyces is one of a soil microorganisms which is rarely used by Indonesian researcher for biological control of planth pathogent. Local isolates of Streptomyces spp. were used in this study to control "lincat disease" of Temanggung tobacco. Ninety four isolates of Streptomyces were tested directly in the field to suppress the development of lincat disease in the field. Six isolates, i.e. Stre-4, Stre-7,Stre-48, Stre-61, Stre-66 and Stre-67 suppressed the disease development with various degree. It was likely that decreasing the concentration of bacterial antagonist gave better protection against the disease. In vitro experiments indicated that there was no correlation between inhibition pathogen in vitro and ability to suppress disease in the field. The result showed that selection of antagonist in vitro based on antibiosis will eliminate the chance to get other potential antagonist.

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