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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 448 Documents
POLYTOMOUS QUANTAL RESPONSE OF CROCIDOLOMIA PAVONANA (F.) (LEPIDOPTERA: PYRALIDAE) TO EXTRACTS OF AGLAIA SPP. AND DYSOXYLUM SPP. (MELIACEAE) Djoko Prijono .
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 5 No. 1 (2005): MARET, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (134.415 KB) | DOI: 10.23960/j.hptt.151-10

Abstract

Polytomous Quantal Response of Crocidolomia pavonana (F.) (Lepidoptera: Pyralidae) to Extracts of Aglaia spp. and Dysoxylum spp. (Meliaceae). This work was done to study the polytomous binary response of the cabbage head caterpillar Crocidolomia pavonana (F.) to extracts of two species each of Aglaia and Dysoxylum (Meliaceae). Second-instar larvae C. pavonana were fed extract-treated broccoli leaves for 2 days and then the surviving larvae were maintained on untreated leaves until pupation. Relationship between extract concentration and the number of dead larvae in different instars was analyzed using polytomous quantal response analysis based on the conditional logit model. The results showed that twig extract of Dysoxylum acutangulum and seed extract of D. mollissimum possessed strong insect growth regulating activity against C. pavonana larvae as reflected by highly significant responses in the later insect life stages after the feeding treatment was removed, including the significant occurrence of malformed pupae. On the contrary, the feeding treatment with twig extract of Aglaia odorata and seed extract of A. odoratissima resulted in highly significant responses only in the treated larval instar, and after the feeding treatment was removed, responses in the later life stages were insignificant or much less significant. Overall, the above results suggest that Dysoxylum extracts interfered with hormonally-controlled insect development and metamorphosis, whereas the activity of Aglaia extracts was more insecticidal rather than insect growth regulating.
Isolasi dan Seleksi Bakteri Endofit untuk Pengendalian Penyakit Darah pada Tanaman Pisang Husda Marwan; Meity S. Sinaga; . Giyanto; Abdjad Asih Nawangsih
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 11 No. 2 (2011): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (70.101 KB) | DOI: 10.23960/j.hptt.211113-121

Abstract

Blood disease is one of the important diseases of banana in Indonesia. Endophytic bacteria have potencies as candidates of biocontrol agents to blood disease, because the bacteria colonized the same ecological niche with the plant pathogens. This research was conducted to isolate endophytic bacteria from banana root, and study their disease suppression ability to blood disease on banana. Ninety isolates of endophytic bacteria have been isolated from the root of banana. Average population densities of bacteria varied between 6,0 x 103 and 4,2 x 105 cfu/g fresh weight of root. Twenty seven isolates positively produced inhibition zone toward blood disease bacterium. Based on plant growth and disease suppression test, ten isolates promoted the growth of banana plant and four isolates suppressed the incidence of blood disease with ranged from 66,67 to 83,33%.
KELIMPAHAN BAKTERI RIZOSFER PADA SISTEM PHT-BIOINTENSIF SERTA KEMAMPUAN ANTAGONISMENYA TERHADAP Sclerotium rolfsii PADA KEDELAI Abdjad Asih Nawangsih; Tita Widjayanti .; Yana Anisa .
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 14 No. 2 (2014): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (688.214 KB) | DOI: 10.23960/j.hptt.214110-120

Abstract

Abundance of rhizospheric bacteria on the IPM-Biointensive system and their antagonistic activities toward Sclerotium rolfsii on soybean. Abundance of beneficial microorganisms in the soil is one of the active soil indicators the success of integrated pests management (IPM) system. Some beneficial groups of microorganisms can be used as biocontrol agents. This experiment was conducted to evaluate the effects of IPM-Biointensive by integrated application of resistant varieties, rice-straw mulch, and biocontrol agents on the abundance of rizospheric bacteria of soybean, also to evaluate the suppressiveness of the bacteria to the mycelial growth of S. rolfsii in vitro. Abundance of the bacteria was determined by isolation using serial dilution and plate-count techniques. Suppression to the fungus was evaluated using dual culture technique. Heat tolerant bacteria had the highest abundance (ranged 1011-1012 cfu/g soil), followed by non-fluorescence bacteria (1011 cfu/g soil), chitinolytic bacteria (106-109 cfu/g soil), and fluorescence bacteria with population range was 103-108 cfu/g soil. Gepak kuning variety grown with application of rice-straw mulch and PGPR (V2M1P1) caused the highest abundance of rizosphere bacteria. One of the heat tolerant bacteria, i.e. TP32, caused the highest suppression to the mycelial growth of S. rolfsii in vitro. Based on the morphology, physiology, and biochemical properties, the isolate was identified as Bacillus sp.
EFFECTS OF TILLAGE SYSTEM – CORN VARIETY COMBINATIONS ON AIRBORNE DISEASES Joko Prasetyo .
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 3 No. 1 (2003): MARET, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (46.503 KB) | DOI: 10.23960/j.hptt.136-9

Abstract

Pengaruh Kombinasi Sistem Olah Tanah dan Varietas Jagung terhadap Penyakit-penyakit Terbawa Udara. Suatu percobaan telah dilakukan untuk mengetahui pengaruh kombinasi sistem olah tanah dan varietas jagung terhadap beberapa penyakit atau patogen terbawa udara, yaitu patogen bulai, karat, dan hawar daun. Percobaan ini disusun secara faktorial (2 x 3) dalam rancangan acak kelompok lengkap dengan enam ulangan. Percobaan terdiri dari enam kombinasi perlakuan, yaitu varietas RR-corn ditanam pada sistem olah tanah konservasi (RRCT), C7 ditanam pada sistem olah tanah konservasi (C7CT), Bisma ditanam pada sistem olah tanah konservasi (BCT), RR-corn ditanam pada sistem olah tanah sempurna (RRFT), C7 ditanam pada sistem olah tanah sempurna (C7FT), dan Bisma ditanam pada sistem olah tanah sempurna BFT). Hasil percobaan menunjukkan bahwa secara nyata kombinasi sistem olah tanah dan varietas jagung mempengaruhi intensitas penyakit. Kombinasi sistem olah tanah dan varietas jagung berpengaruh terhadap penyakit bulai. Varietas jagung yang ditanam pada sistem olah tanah konservasi secara nyata menurunkan intensitas penyakit bulai dibandingkan dengan varietas jagung yang ditanam pada sistem olah tanah sempurna, kecuali varietas Bisma. Hasil penelitian juga menunjukkan bahwa varietas Bisma dapat menurunkan intensitas penyakit bulai dibandingkan dengan varietas RR-corn dan C7 pada sistem olah tanah sempurna. Kombinasi sistem olah tanah dan varietas jagung berpengaruh terhadap intensitas penyakit karat. Pada sistem olah tanah konservasi, secara nyata varietas C7 menurunkan intensitas penyakit karat dibandingkan dengan RR-corn dan Bisma. Varietas RR-corn dan Bisma menurunkan intensitas penyakit karat bila ditanam pada sistem olah tanah sempurna bila dibandingkan dengan yang ditanam pada sistem olah tanah konservasi. Kombinasi sistem olah tanah dan varietas jagung juga secara nyata berpengaruh terhadap intensitas penyakit hawar daun. Varietas RR-corn dan Bisma yang ditanam pada sistem olah tanah sempurna menurunkan intensitas penyakit hawar daun bila dibandingkan dengan yang ditanam pada sistem olah tanah konservasi.
INFESTASI PENGGEREK BUAH KAKAO KEDALAM PERKEBUNAN KAKAO DI KAWASAN KERKAP, BENGKULU UTARA DAN PENGENDALIANNYA Teddy Suparno .
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 1 No. 1 (2001): MARET, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (42.684 KB) | DOI: 10.23960/j.hptt.1111-15

Abstract

Infestation of cocoa pod borer into cacao plantation in kerkap area, north bengkulu and their control. Cocoa pod borer (CPB), Conopomorpha cramerella Snellen, has known as a primary pest on cacao plantation and caused much yield loss. This pest was newly infest into cacao plantation in Bengkulu Province. Objective of the research was to know infestation of CPB into Cacao Plantation in Kerkap area, North Bengkulu. The result showed that all location on cacao plantation area at Kerkap area was gain infestation by cocoa pod borer except the Cacao Plantation at Serumbung Village. Their attack on all plant population was in range between 0.01 and 0.23%, while in produced plant population was in range between 0.20 and 3.06%. The control could be apply are early pick up the pods, used the resistant clones for juvenilization, and spraying by synthetic.
Pineapple Fruit Collapse: Newly Emerging Disease of Pineapple Fruit in Lampung, Indonesia Joko Prasetyo; Titik Nur Aeny
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 14 No. 1 (2014): MARET, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (136.151 KB) | DOI: 10.23960/j.hptt.11496-99

Abstract

ABSTRACTPineapple fruit collapse: newly emerging disease of pineapple fruit in Lampung, Indonesia Recently, a new disease on pineapple fruit has occurred in Lampung. Symptoms of the disease are complex. Fruits rotted and exuded copious liquid from the inter- fruitlet tissues accompanied by gas bubbles. Open spaces were formed inside the rotten fruit. Dissection of diseased fruit showed many cavities within its sceletal fibres and bad odour was exerted from the rotten tissues. A bacterial entity was isolated from the diseased materials. In a pathogenicity test, the isolated bacteria caused the same symptom as mentioned. In the growing-on test the crown of the heavily infected fruit showed heart rot symptom. Those indicated that the disease was pineapple fruit collapse. Both symptoms were known related to the same causal agent, Erwinia chrysanthemi (pineapple strain Dickeya sp.). In our opinion, this is the first report of pineapple fruit collapse in Indonesia.
PENGARUH TEMPERATUR TERHADAP PERKEMBANGAN NEMATODA SISTA KENTANG (GLOBODERA SPP.) INDONESIA Lisnawita, Meity S. Sinaga Supramana & Gede Suastika .
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 10 No. 1 (2010): MARET, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (143.199 KB) | DOI: 10.23960/j.hptt.11029-34

Abstract

The effect of temperature on the development of Indonesian potato cyst nematode. Potato cyst nematode (PCN) is a serious pathogen of potato and is found in most potato producing areas of the world. In Indonesia, PCN was recently discovered and recognized as major constraint on potato. The growth and behaviour of nematodes are affected by the environment. Therefore, determination of the biology of PCN Indonesian populations is urgently needed to manage this pathogens effectively. The effect of temperature on biology factors of four PCN Indonesian populations (North Java 1, North Java 2, West Java, and Central Java) was studied at different temperatures levels (12, 15, 18, 21 and 24ºC) in the growth chamber. The aim of this research was to study the effect of temperature on development of PCN. Observation was conducted on cyst number, reproduction factor (Rf), survival, fecundity and multiplication of PCN. The optimum temperature range for maximum cysts production with the highest reproduction factor, survival, fecundity and multiplication rate for all populations was 15 - 21ºC. The hatching and development of all PCN populations reduced at temperature below 15ºC or above 21ºC.
UJI EFIKASI EKSTRAK GULMA SIAM TERHADAP MORTALITAS HAMA PENCUCUK BUAH KAKAO (HELOPELTIS SPP.) DI LABORATORIUM Yuyun Fitriana; . Purnomo; Agus M. Hariri
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 (132.164 KB) | DOI: 10.23960/j.hptt.11285-91

Abstract

This research was aimed to investigate the effect of siam weeds (C. odorata) extract on the mortality of Helopeltis spp., the effect of the addition of emulsifier on the toxicity of siam weed extract, and to find out a potential concentration of the siam weeds extract that can be used as bioinsecticide for Helopeltis spp. Six concentration levels of C. odorata were used as treatments: 0% (control), 20%, 30%, 40%, 50% and 60% by adding 0.3% or no emulsifier. Data collected were mortality of nymphs and adults of Helopeltis spp. The results showed that the application of the siam weeds (C. odorata) extract was able to kill of nymph and adult of Helopeltis spp. The mortality of nymph ranged from 26.6% to 50.0% without emulsifier and 78.8% to 85.0% with emulsifier, and for adult range 15.00% - 46.67% without emulsifier and 31.67% - 71.67% with emulsifier for adult. The results confirm by adding emulsifier can enhance toxicity of siam weed extract to Helopeltis spp.. There was no significant effect of concentration level of siam weed on cocoa mirid mortality, therefore concentration level of 20% seems to be the potential concentration of siam weed extract that can be used as bioinsecticide of Helopeltis spp..
IDENTIFIKASI TOMATO INFECTIOUS CHLOROSIS VIRUS PENYEBAB PENYAKIT KLOROSIS PADA TANAMAN TOMAT DI CIPANAS JAWA BARAT MELALUI PERUNUTAN NUKLEOTIDA GEN PROTEIN SELUBUNG UTAMA Fitrianingrum Kurniawati; Gede Suastika; Giyanto .
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 15 No. 1 (2015): MARET, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (281.34 KB) | DOI: 10.23960/j.hptt.11533-43

Abstract

Identification of tomato infectious chlorosis virus, the causal agent of chlorosis disease on tomato in Cipanas West Java by sequencing of main coat protein gene nucleotide. Tomato infectious chlorosis virus (TICV) causes chlorosis on tomato. Tomatoes infected by this virus shows interveinal yellowing, necrotic, bronzing, brittleness, and declining in productivity. This study aims to identify the causal agent of chlorotic disease on tomato by sequencing the coat protein gene. The methods involve collecting infected plants, total RNA extraction, cDNA synthesis, DNA amplification, visualization of the results of reverse transcription polymerase chain reaction (PCR), and phylogenetic analysis using BLAST, clustal w, Bioedit v 7.0.5.3, MEGA v 6:06. RT-PCR using spesific primers (CP-F TICV Bam and TICV R-Hind) amplified a DNA band of 792 bp, which has been successfully sequenced and identified as TICV. Nucleotide sequences homology analysis showed that TICV Indonesia_TWJ isolate Cipanas is the same strain as TICV from other countries (99.4 – 100%), such as Spain, Greece, USA, France, and Italy.
HERITABILITAS, NISBAH POTENSI, DAN HETEROSIS KETAHANAN KEDELAI (Glycine max [L.] Merrill) TERHADAP SOYBEAN MOSAIC VIRUS Nyimas Sa’diyah; Hasriadi Mat Akin; Ria Putri; Risa Jamil; Maimun Barmawi
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 16 No. 1 (2016): MARET, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1388.313 KB) | DOI: 10.23960/j.hptt.11617-24

Abstract

Heritability, potential ratio, and heterosis of soybean (Glycine max [L.] Merrill) resistance to soybean mosaic virus. The use of soybean cultivars with resistance to SMV is a way for controlling soybean mosaic disease. The objective of this research was to estimate the disease severity, the narrow sense heritability, potential ratio and heterosis of resistance character and number of pithy pods, number of healthy seeds, and healthy seeds weight per plant of ten F1 populations of soybean crossing result to SMV infection. The experiment was arranged in a randomized complete block design in two replications. Observed characters were disease severity, number of pithy pods, number of healthy seeds, and healthy seeds weight per plant. The result of this research showed that 1) the crossing combinations those which were resistant to SMV (lower disease severity) were Yellow Bean x Tanggamus, Tanggamus x Orba, and Tanggamus x Taichung, 2) the narrow sense heritability of disease severity was included in medium criteria, 3) number of pithy pods belonged to high criteria, and 4) number of healthy seeds and healthy seeds weight per plant were included in low criteria. The crossing combinations that had low estimation value of heterosis and heterobeltiosis of resistance to SMV infection were Yellow Bean x Taichung, Bean x Tanggamus and Tanggamus x B3570. Disease severity or resistance to SMV is influenced by genetic and environmental factors.

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