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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
EFFECTS OF CORN CULTIVAR-TILLAGE SYSTEM COMBINATION ON VESICULAR ARBUSCULAR MYCORRHIZAE Joko Prasetyo .
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 (47.431 KB) | DOI: 10.23960/j.hptt.2251-54

Abstract

Pengaruh kombinasi varietas jagung dan sistem olah tanah terhadap mikorisa vesikular arbuskular. Penelitian telah dilakukan untuk mengevaluasi pengaruh kombinasi sistem olah tanah dan varietas terhadap populasi mikorisa vesikular arbuskular. Penelitian juga ditujukan untuk mengetahui pengaruh kombinasi varietas jagung dan sistem olah tanah terhadap infeksi mikorisa vesicular arbuskular. Penelitian terdiri atas enam perlakuan yang disusun dalam rancangan acak kelompok. Perlakuan tersebut adalah varietas RR yang ditanam pada sistem olah tanah konservasi (RRCT), varietas C7 yang ditanam pada sistem olah tanah konservasi (C7CT), varietas Bisma ditanam pada sistem olah tanah konservasi (BCT), varietas RR ditanam pada sistem olah tanah sempurna (RRFT), varietas C7 yang ditanam pada sistem olah tanah sempurna (C7FT), dan varietas Bisma ditanam pada sistem olah tanah sempurna (BFT). Hasil penelitian pada sistem olah tanah konservasi menunjukkan bahwa varietas RR dan C7 secara nyata dapat menurunkan infeksi mikorisa dibandingkan dengan varietas Bisma. Hasil penelitian juga menunjukkan bahwa pada varietas RR dan C7, olah tanah konservasi secara nyata menurunkan infeksi mikorisa dibandingkan dengan sistem olah tanah sempurna.
UJI KETAHANAN GALUR-GALUR KENTANG TRANSGENIK HASIL TRANSFORMASI DENGAN GEN RB TERHADAP PENYAKIT HAWAR DAUN (PHYTOPHTHORA INFESTANS) DI KP PASIRSARONGGE, CIANJUR Edy Listanto; M . Herman; Eri Sofiari
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 13 No. 2 (2013): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
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Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (528.831 KB) | DOI: 10.23960/j.hptt.213141-150

Abstract

Resistance test strains of transgenic potatoes transformed with RB gene to late blight (Phytophthora infestan) in KP Pasirsarongge, Cianjur. Potato late blight caused by Phytophthora infestans (P. infestans) (Mönt.) de Barry continues to be one of the most important crop diseases of all time. Genetic engineering of potato using RB gene for resistant plant to this disease is the most effective and environmental friendly to prevent widespread of late blight. This research aims to perform resistance of transgenic potato lines containing RB gene to lateblight (P. infestans) in Pasirsarongge, Cianjur field trial station. The first generation of transgenic lines were planted on polybag containing soil:manures using randomized complete block design. Tested plant inoculation was done naturaly from inoculum source from border row (Granola) that has been planted at one month before. The symptom was observed at one month after planting and damage scoring was done every three days for five times. Twenty two transgenic lines of tested plant showed various resistance respond to late blight (P. infestans) attack. Three transgenic lines showed highly resistance to late blight (P. infestans) were lines 11, 24, and 25, one transgenic line has resistant level was line 6.
UJI AKTIVITAS ANTIBIOSIS PSEUDOMONADS PENDARFLUOR TERHADAP Rigidoporus lignosus (Klotszch) Imazeki PENYEBAB PENYAKIT AKAR PUTIH . Hasanuddin
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 11 No. 1 (2011): MARET, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
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Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (113.794 KB) | DOI: 10.23960/j.hptt.11187-94

Abstract

The potential of fluorescent bacteria as biological control agents for white root disease caused by Rigidoporus lignosus has been investigated. Isolation of bacteria from the soil using S1 media produced two fluorescent bacteria isolates. Using the Microbact 12A+12B method, both bacteria were identified as Pseudomonas fluorescens and P. aeruginosa. These two species of bacteria were then used as antibiosis activity test against R. lignosus. Four series antibiosis activity tests were done, that were antibiosis test of media culture bacteria growth to R. lignosus colony, antibiosis test of dry fluorescent pigment extract to R. lignosus, influence of Fe3+ to antibiosis activity of bacteria test, and affinity of media supernatant to Fe3+. The results were: antibiosis activity of King’s B (KB) media was more effective than media 523 in the inhibition of R. lignosus colony growth. There was no significant different antibiosis activity of dry fluorescent pigment extract from media KB and media 523 in the inhibition of R. lignosus colony growth. The level of Fe3+ in the media might influence antibiosis activity of fluorescent pigment. Affinity test of KB supernatant from fluorescent bacteria culture with Fe3+ showed an absorption peak of 410 nm on spectrophotometer, and none for the fungi. These results indicate that P. fluorescens and P. aeruginosa produce cathecol-type siderophore with high affinity against Fe3+ compared with hydroxamate-type siderophore which is generally produced by fungus.
HAMA TANAMAN BELIMBING DI WILAYAH KABUPATEN BLITAR JAWA TIMUR Muhlison, Wildan; Triwidodo, Hermanu; ., Pudjianto
JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA Vol 16, No 2 (2016): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
Publisher : JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (19.933 KB)

Abstract

Pests of star fruit in Blitar District, East Java. Pest attack causes the production of star fruit decreases. This study aim was to identify the pests of star fruit in Blitar District which could provide an information about pest species, damage symptoms and damage intensity. The research was conducted during August – September 2014 in Gogodeso, Karangsono and Pojok Villages at Blitar District, East Java. Observations of the pests ware done by determining the four locations of plantation on each villages randomly. Three plants sample were choosen in each plantation location diagonally. Each plant was divided into four quadrant according to wind directions. One branch in the bottom was choosen in each quadrant. Nine species were recorded as pests of starfruit in Blitar district. Pest was identified on the leaf was Pteroma plagiophleps, on the branch was Zeuzera coffeae, on the flower were Toxoptera aurantii and Maconellicoccus hirsutus, whereas those on the fruit were Toxoptera aurantii, Maconellicoccus hirsutus, Thrips javanicus, Helopeltis bradyi, Cryptophlebia leucotreta, Bactrocera dorsalis, and Bactrocera carambolae. The population density of M. hirsutus was higher in Karangsono than in other villages. The highest damage intensity was caused by Bactrocera spp., C. leucotreta and H. bradyi (occured in Gogodeso), whereas the highest damage intensity of T. javanicus occurred in Pojok.
KEMAMPUAN REPRODUKSI TUNGAU PREDATOR FAMILI PHYTOSEIIDAE PADA BERBAGAI KEPADATAN TETRANYCHUS URTICAE DAN POLEN TANAMAN DI SEKITAR TANAMAN SINGKONG (MANIHOT ESCULENTA CRANTZ) Bambang Heru Budianto; Achmad Munadjat
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 (334.636 KB) | DOI: 10.23960/j.hptt.212129-137

Abstract

The predatory mite of Phytoseiidae family have extensive cruising range that is not only found in cassava, but also a variety of weeds in cassava plants, such as Ageratum conyzoides and Cyperus cyperus. Extensive cruising range is also well explain the survival rate of the Phytoseiidae family at the time of the density of T. urticae decreased. The research objective is to determine the development period, fecundity and survival rate of Phytoseiidae predatory mite populations at different relative densities T. urticae and pollen. The research method used is an experimental laboratory. The procedure include the provision of A. conyzoides and C. rotundus pollen, the multiplication of predatory mite families Phytoseiidae, the determination of the development period, fecundity and survival rate of predatory mite families Phytoseiidae. The results showed that the length of time the development of predatory mites Amblyseius sp. and Phytoseius sp. faster one day of feeding on egg T. urticae feeding compared to the two types of pollen. Predatory mites survival rate Phytoseius sp. higher than the predatory mites Amblyseius sp. eggs fed T. urticae and both types of pollen. Similarly, the fecundity Phytoseius sp. higher than the mites Amblyseius sp. either fed eggs T. urticae as well as to two types of pollen.
PENGIMBASAN KETAHANAN BIBIT PISANG AMBON KUNING TERHADAP PENYAKIT LAYU FUSARIUM DENGAN BEBERAPA JAMUR ANTAGONIS Loekas Soesanto dan Ruth Feti Rahayunia .
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 (208.076 KB) | DOI: 10.23960/j.hptt.29130-140

Abstract

Induced resistance of Ambon Kuning cultivar banana seedling to fusarium wilt with antagonistic fungi. A research aiming at knowing the effect of antagonistic fungi supernatant on banana induced resistance, Fusarium wilt development, and banana growth was carried out from July up to December 2008. Randomized Block Design was used with four replicates. Treatments tested were control, with supernatant of Gliocladium virens, Trichoderma harzianum isolated from banana, ginger, and ginseng, Trichoderma koningii, and Fusarium equiseti, applied by injection to banana seedling corm and soaked for five minutes. Variables observed were incubation period, disease severity, Foc population density, germination inhibition, growth component, phenolic compound content, and supporting component. Result of the research indicated that the supernatant of G. virens, T. harzianum, and T. koningii could significantly induce resistance of the seedling showed by increasing the phenolic content such as glycoside, saponin, and tannin. The supernatant of all antagonistic fungi could effectively control the disease showed by lengthening incubation period as 48.71%, decreasing the disease severity as 53.57%, decreasing infection rate as 61.48%, increasing the antagonistic effectivity as 51.26%, decreasing the late population density as 45.35%, and decreasing the inoculum inside the plant as 60-100%. The extract could improve the seedling growth.
PENYEMPURNAAN PENGENDALIAN TERPADU PENYAKIT TUNGRO DENGAN STRATEGI MENGHIDARI INFEKSI DAN PERGILIRAN VARIETAS TAHAN Burhanuddin, I. Nyoman Widiarta, dan Andi Hasanuddin .
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 6 No. 2 (2006): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
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Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (77.949 KB) | DOI: 10.23960/j.hptt.2692-99

Abstract

Refining integrated rice tungro disease management based on escaped strategy and varieties rotation. Rice tungro virus transmitted mainly by green leafhopper, N. virescens, infected rice in central rice production in Indonesia. Tungro epidemic in South Sulawesi were succesfully controlled by integrating appropriate planting time and rotation of green leafhopper resistant varieties since 1973. Tungro was reported in 1998 after climate anomaly, caused by El-Nino and La-Nina. Pattern of green leafhopper population fluctuation and tungro disease incidence and green leafhopper adaptation to green leafhopper resistance variety were evaluated. The results showed that the fluctuation pattern of green leafhopper population in Lanrang which represents of areas in Eastern Coarse of South Sulawesi has changed. Green leafhopper colonies from endemic area in South Sulawesi were almost all well adapted to 4 groups of green leafhopper resistance varieties. Therefore it was suggested to adjust planting date and recommended to plant tungro virus resistance variety instead of green leafhopper resistance varieties.
PREFERENSI DAN TANGGAP FUNGSIONAL PARASITOID HEMIPTARSENUS VARICORNIS (GIRAULT) (HYMENOPTERA: EULOPHIDAE) PADA LARVA LALAT PENGOROK DAUN KENTANG Hidrayani, Aunu Rauf, Soemartono Sosromarsono, dan Utomo Kartosuwondo.
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 9 No. 1 (2009): MARET, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
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Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (133.884 KB) | DOI: 10.23960/j.hptt.1915-21

Abstract

The preference and functional response of Parasitoid Hemiptarsenus varicornis (Girault) (Hymenoptera:Eulophidae) on host larvae of potato leafminers. The preference of Hemiptarsenus varicornis (Girault) on host larvae of potato leafminers (Liriomyza huidobrensis) and their functional response on host abundance were studied in laboratory. The preference test was conducted by releasing a female parasitoid in a cage containing two redbean leaves, one with 2nd instar and another one with 3rd instar. The functional response test was conducted by providing 3rd instar with density 1, 4, 6, 8, 10, and 13 larvae per leaf. The result showed that H. varicornis had the preference on 3rd instar larvae compared to 2nd instar, either for parasitisation or paralysis. Based on logistic regression analysis it was found that the parasitoid showed type II functional response on the increase of host abundance. The searching rate (a) and handling time (Th) for paralysis were 0.038 and 1.473 based on disk equation model, and 0.076 and 2.060 on ramdom equation model. For parasitisation activity, the value of a and Th were 0.012 and 4.649 based on disk equation model, and 0.014 and 5.075 on random equation model.
KEPATOGENAN SATELIT RNA YANG BERASOSIASI DENGAN CUCUMBER MOSAIC VIRUS (CMV-satRNA) PADA TANAMAN CABAI Hasriadi Mat Akin .
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 (77.766 KB) | DOI: 10.23960/j.hptt.1537-41

Abstract

Pathogenicity of RNA satellite associated with cucumber mosaic virus (CMV-satRNA) on hot pepper plant. The objective of this experiment was to determine the pathogenicity of RNA satellite associated with CMV (CMV-satRNA) on hot pepper plant and effects of mix infection of CMV-satRNA and other viruses naturally infecting hot pepper, PVY (potato virus Y) and TMV (tobacco mosaic virus). Two green house experiments were conducted in Gedong Meneng Bandar Lampung during June—November 2004. The treatments of the the first experiment were arranged in a completely randomized design with five replications. The treatments were hot pepper plant inoculated with CMV-satRNA, severe strain CMV-G, and control uninoculated plant. The second treatment was arranged in a complete block randomized design in a factorial experiment with four replications. The first factor was single inoculation of CMV-satRNA, PVY, TMV, double inoculatoin of CMV-satRNA and PVY, CMV-satRNA and TMV, PVY and TMV, and control uninoculated plant. The second factor was two hot varieties, Taro and Laris. The results of the first experiment showed that infection of CMV-satRNA did not significantly reduce the yield of hot pepper plant compared to severe strain CMV-G. The result of the second experiment indicated that mix infection of CMV-satRNA and TMV or CMV-satRNA and PVY did not induced a synergetic reaction on hot pepper plants.
KEEFEKTIVAN EKSTRAK BIOTA LAUT AGLAOPHENIA TERHADAP AKTIVITAS ENZIM EKSTRASELULER DAN KANDUNGAN PROTEIN FUSARIUM SERTA PERSENTASE BUSUK BATANG VANILI I Ketut Suada
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 (314.809 KB) | DOI: 10.23960/j.hptt.211157-165

Abstract

The aim of this research was to investigate the effect of Aglaophenia extract on the activity of cellulase and pectinase, protein content of Fusarium, and percentage of vanilla stem rot. This reasearch was carried out in-vitro with concentration of extract of 2000, 1000, 500, 250, 125, 63, and 0 ppm (w/v). The treatments were also applied on vanilla plant to determine their effect on the stem rot incidence. The results exhibited that the higher the concentration of the extract given, both enzymes activity and mycelial protein content of Fusarium decreased. The decrease of enzymes activity resulted in the decrease of vanilla stem rot percentage. The effectiveness of the extract to suppress stem rot was higher than mancozeb, therefore, the extract could be used as a control agent against vanilla stem rot.

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