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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.
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Articles 10 Documents
Search results for , issue "Vol. 8 No. 2 (2008): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA" : 10 Documents clear
KESESUAIAN DAN PREFERENSI LIRIOMYZA HUIDOBRENSIS (BLANCHARD) (DIPTERA: AGROMYZIDAE) PADA BERBAGAI TUMBUHAN INANG Purnomo, Aunu Rauf, Soemartono Sosromarsono, dan Teguh Santoso.
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 8 No. 2 (2008): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (74.777 KB) | DOI: 10.23960/j.hptt.28102-109

Abstract

Host suitability and the preference of Liriomyza huidobrensis (Blanchard) (Diptera: Agromyzidae) on different host plants. Potato leafminer, Liriomyza huidobrensis has become a major pest on highland vegetables since its invasion in Indonesia in 1994. The objectives of this research was to elucidate the level of suitability and the preference of L. huidobrensis on different host plant species. Research was conducted in Insect Ecology Laboratory, Department of Plant Pests and Diseases, Faculty of Agriculture-IPB. The result of laboratory experiments indicated that host plants showing the highest level of suitability (based on the intrinsic rate of increase, r) were potato (Solanum tuberosum), chinese cabbage (Brassica chinensis var. parachinensis), kacang endul (P. vulgaris), and snap bean (P. vulgaris). Low host suitability were found on cucumber (Cucumis sativus), tomato ( S. lycopersicum), wild radish (Nasturtium indicum) and a non-crop vegetation, galinggang (Galinsoga parviflora). There was consistency between suitability and host preference. The first four host plants mentioned above were preferred for feeding and laying eggs.
KARAKTER MOLEKULER CHRYSANTHEMUM B CARLAVIRUS (CVB) ISOLAT KRISAN (DENDRANTHEMA GRANDIFLORA KITAM) DI INDONESIA I G. R. M. Temaja, G. Suastika, S.H. Hidayat dan U. Kartosuwondo .
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 8 No. 2 (2008): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (369.733 KB) | DOI: 10.23960/j.hptt.28138-145

Abstract

Molecular characterstics of Chrysanthemum B Carlavirus (CVB) isolated from chrysanthemum (Dendranthema grandiflora Kitam) in Indonesia. Chrysanthemum B Carlavirus (CVB) belongs to Carlavirus genus which type species is Carnation latent virus (CLV). Since CVB is considered a new plant virus in chrysanthemum plantation in Indonesia, a study on its molecular characters is required. The objectives of the study are: 1) to determine molecular characters of CVB; 2) to study genetic diversity among CVB isolates collected from different geographic regions in Indonesia. The research activities cover virus purifications, electron microscope observation, coat protein analysis by SDS PAGE, and nucleic acid analysis. The result of virus purification demonstrated a high purity level with ratio value of A260/A280 =1.22. The total pure virus produced from 200 g of fresh material is 6.250 mg. Purified virus preparation yielded rather straight rod and flexuous virus particles of about 685 nm long and 12 nm wide. Coat protein analysis with sodium dodecyl sulphate-polyacrylamide gel electrophoresis (SDS-PAGE) showed specific protein band of approximately 34 kDa. Specific DNA fragment of 739 bp was successfully amplified from chrysanthemum infected by CVB Cianjur, Medan, Malang and Bali isolates. CVB isolated from Cianjur, Medan, Malang and Bali have similarity 85-99%. Based on analysis using PAUP 4.10 program, Cianjur, Medan, Malang and Bali isolates belong to the same group with CVB isolates originated from India (Chattisgarh and Jammu isolates). Cianjur isolate has close relationship to Medan isolate, however Bali isolate showed a close relationship with Malang isolate.
KERAGAMAN DAN KEMELIMPAHAN COLLEMBOLA SERTA ARTHROPODA TANAH DI LAHAN SAWAH ORGANIK DAN KONVENSIONAL PADA MASA BERA Indriyati dan Lestari Wibowo .
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 8 No. 2 (2008): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (117.105 KB) | DOI: 10.23960/j.hptt.28110-116

Abstract

The diversity and abundance of Collembola and soil arthropods in organic and conventional lowland field at fallow time. As ecosystem components, Collembola and arthropods are important in keeping the ecosystem stability. Beside its role as the decomposer, Collembola also takes part as the alternative food for arthropod predators. This research was aimed to gather information on the diversity and abundance of Collembola and arthropods in organic and conventional lowland field at fallow time. The sampling was done using pitfall trap and Berlese funnel. The results showed that: (1) the abundance of Collembola in organic lowland field was higher than that of in the conventional lowland field but the diversity of Collembola in the organic lowland field was not different from that of in the conventional field; (2) Entomobryidae was the family with the highest abundance; and (3) the diversity and abundance of soil arthropods were relatively greater in organic lowland field than that of in the conventional lowland.
PENGARUH DOSIS SUBLETAL EKSTRAK SAMBILATA (ANDROGRAPHIS PANICULATA NEES) TERHADAP AKTIVITAS MUSUH ALAMI DAN KEPERIDIAN WERENG HIJAU, NEPHOTETTIX VIRESCENS DISTANT I Nyoman Widiarta dan Dede Kusdiaman .
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 8 No. 2 (2008): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (56.623 KB) | DOI: 10.23960/j.hptt.2875-81

Abstract

Effect of sublethal doses of sambilata extract to the fecundity and natural enemies activity of the green leafhopper, Nepothettix virescens Distant. Sambilata (Andrographis paniculata) is a tropical herb which has antifeeding property and could reduce rice tungro virus transmission by the rice green leafhopper (GLH), Nephotettix virescens. Series of test were conducted to clarify the effect of sublethal doses of sambilata to the fecundity and natural enemies activity of the GLH. The objective of the test was to know wether sublethal dose of sambilata could cause physiological or ecological resurgence. The results of test showed that foliar spraying of sambilata extract at concentration of 100 and 1000 ppm to rice seedlings reduced the GLH females’s fecundity. Spraying sambilata extract up to dose of 100 ppm on rice seedlings and GLH did not reduce Lycosa preying activity. Egg parasitoid activity was not affected by sambilata application on rice seedlings bore GLH eggs. Thus the probability of sublethal dose of sambilata to cause physiological or ecological resurgence was low.
METODE PENAPISAN CABAI (CAPSICUM ANNUUM L.) UNTUK KETAHANAN TERHADAP CHILLI VEINAL MOTTLE VIRUS (Chi VMV) DAN CUCUMBER MOSAIC VIRUS (CMV) Latifah, Sri Hendrastuti Hidayat, dan Sriani Sujiprihati .
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 8 No. 2 (2008): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (135.226 KB) | DOI: 10.23960/j.hptt.28146-153

Abstract

Screening Method for Chilli Veinal Mottle Virus (Chi VMV) and Cucumber Mosaic Virus (CMV) Resistance in Chillipepper. ChiVMV and CMV have been reported as the causal agents of main diseases in chillipepper in Indonesia and other Asian countries. Mix infection of this two viruses was commonly occurred in the field, causing severe disease . The use of resistance varieties has been proposed for dealing with the yield losses causing by the viruses. Breeding program is undergoing for development of chillipepper varieties resistant to ChiVMV and CMV. Methodology for routine screening activity of chillipepper for resistance to both ChiVMV and CMV needs to be established. This research was conducted in Cikabayan Glass House and Plant Virology Laboratory, Plant Protection Department, Bogor Agricultural University from May 2006 to June 2007. Aim of the research was to develop screening method for simultaneous infection by the two viruses, ChiVMV and CMV. Inoculation of ChiVMV and CMV was done by single inoculation or repetitive inoculation methods. In both methods, ChiVMV and CMV were inoculated in different sequences, either ChiVMV or CMV first. The result showed that incubation period was shorter when CMV was inoculated in advance both in single and repetitive inoculation method. Mosaic, mottle and malformation type symptom was observed in infected plants. Based on disease incidence, infection of ChiVMV was higher compared to CMV in repetitive inoculation as well as in single inoculation. Repetitive inoculation methods with virus sequence ChiVMV-CMV-ChiVMV-CMV was selected for resistance evaluation of chillipepper genotypes.
PENGARUH LAMA PERIODE KERING DAN INTENSITAS CURAH HUJAN TERHADAP PENETASAN BELALANG KEMBARA (LOCUSTA MIGRATORIA MANILENSIS MEYEN) Hamim Sudarsono .
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 8 No. 2 (2008): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (56.742 KB) | DOI: 10.23960/j.hptt.28117-122

Abstract

Effect of Dry Period and Rainfall Intensity on Emergence of the Migratory Locust (Locusta migratoria manilensis Meyen). Dry period and rainfall intensity were simulated experimentally to determine their effects on nymph emergence of the migratory locust (Locusta migratoria manilensis Meyen) (Orthoptera: Acrididae). The experiment was conducted in a factorial set up with two factors, i.e. dry periods (1, 2, 4, 8, and 12 week interval of watering) and rainfall intensity (80, 140, 200, and 260 mm/month). Locust nymphal emergence and time required to emerge after the watering were recorded and analyzed. Results of the experiment indicated that dry periods and rainfall levels affected nymphal emergence of the migratory locust. Interaction between dry periods and rainfall levels, however, were statistically not significant (F-value = 0,69 and P-value = 0,7526). Nymphal emergences of L. m. manilensis tended to be higher on soils that were watered less frequently. Similarly, locust emergences were also higher for the soil with lower rainfall intensity (received less amount of watering). At the 80 mm/month rainfall level, 20 – 105,5 days period (egg incubation period) were required before the locust emergence. Incubation period of the eggs was significantly higher as the breeding media (soil) were watered less frequently. On the other hand, time required for the egg to emerge as nymphs was relatively similar regardless of the dry period levels. All eggs emerged 14 – 15,5 days after watering.
KEANEKARAGAMAN DAN KELIMPAHAN LALAT BUAH (DIPTERA: TEPHRITIDAE) PADA BEBERAPA SISTEM PENGGUNAAN LAHAN DI BUKIT RIGIS, SUMBERJAYA, LAMPUNG BARAT Nismah dan F.X. Susilo .
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 8 No. 2 (2008): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (129.128 KB) | DOI: 10.23960/j.hptt.2882-89

Abstract

Diversity and abundance of fruit flies (Diptera: Tephtritidae) in a range of land use systems in Sumberjaya, West Lampung. Fruit fly inventory from seven land use systems in Sumberjaya area, West Lampung, using fruit incubation and lure trap methods resulted in four species of fruit flies, i.e. Bactrocera (Bactrocera) dorsalis, B. (B.) umbrosa, B. (Zeugodacus) cucurbitae, dan B. (Afrodacus) furvus. B. dorsalis was the most common fruit flies in the area while the least found was B. (A) furvus. The abundance of fruit flies was positively correlated with the weight of cempedak fruit (Artocarpus polyphema, Moraceae) and of the watery roseapple fruit (Syzygium aqueum, Myrtaceae).
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
Publisher : Universitas Lampung

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.
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

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (197.09 KB) | DOI: 10.23960/j.hptt.2890-101

Abstract

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.
PENGARUH INFESTASI VERTICILLIUM LECANII TERHADAP KEPARAHAN PENYAKIT KARAT DAUN KOPI PADA TANAMAN DAN KETERJADIAN KOLONINYA PADA DAUN Cipta Ginting .
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 8 No. 2 (2008): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (99.537 KB) | DOI: 10.23960/j.hptt.28132-137

Abstract

Effect of infestation of Verticillium lecanii on the severity of coffee leaf rust on plants and the incidence of its colony on coffee leaves. V. lecanii often antagonizes H. vastatrix on lesions caused by the pathogen on coffee leaves in the field. The objectives of this study were to evaluate the efficacy of V. lecanii to control disease severity on coffee plants in a green house and to compare the incidence of V. lecanii colonies on coffee leaves naturally infested by V. lecanii in the field and that in the leaves with additional infestation in the laboratory. For efficacy test and additional infestation in the laboratory, conidia were harvested from YMPD medium. Suspension with 107 conidia ml-1 was sprayed into coffee foliage until both surfaces of the leaves were saturated with the suspension. After the leaves were air dried, they were sprayed with urediospores (104 ml-1). The results show that disease severity in plants treated with V. lecanii and control plants was not significantly different (P < 0.05), except that obtained at the fourth week when disease severity on the treated plants was significantly lower that that in control plants. The number of V. lecanii colonies on coffee leaves naturally infested with the biocontrol agent was not increased by additional infestation with V. lecanii conidia in the laboratory.

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