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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 521 Documents
Tingkat Keterjadian Penyakit Layu Stewart pada Benih dan Respon beberapa Varietas Jagung terhadap Infeksi Pantoea stewartii subsp. stewartii Haliatur Rahma; Meity S Sinaga; Memen Surahman; Giyanto .
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 13 No. 1 (2013): MARET, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (103.226 KB) | DOI: 10.23960/j.hptt.1131-9

Abstract

Disease incidence of Stewart’s wilt on the seed and response of several maize varieties to Pantoea stewartii subp. stewartii. Stewart’s wilt disease of maize is caused by Pantoea stewartii subsp. stewartii. This bacterium is seed-borne pathogens, when attacked maize caused yield lost 40-100%. The objective of this research was to detemine the incidence level of stewart’s wilt disease, growth of some varieties of maize and their response to stewart’s wilt pathogens Pantoea stewartii subsp. stewartii. The research was conducted in the Laboratory of Bacteriology and Greenhouse Cikabayan IPB from November 2011 to March 2012. In experiment I, nineteen samples of maize were used for symptom test in the maize seedling stage, using Randomized Block Design with three replications. Experiment II used a Randomized Block Design with 2 factors: maize varieties (8 hybrids varieties, 3 open pollinated varieties, and 7 sweet corn varieties) and bacteria isolates (BGR 2, BGR 4, BGR 28, BGR7 and PSM 27), with three replications. The results showed in experiment I, the incidence of stewart’s wilt disease ranged 2.00 – 15.33%, germination and vigor index of maize seed were 68.00 – 95.33% and 55.33 – 90.67% respectively. While in experiment II, hybrid and open pollinated of maize varieties were resistant to moderately susceptible while all sweet corn varieties were susceptible to infection of Pantoea stewartii subsp. stewartii.
Karakterisasi Individu Wereng Hijau NEPHOTETTIX VIRESCENS Distant Penular Aktif Virus Tungro Padi Supriyadi & Retno Wijayanti .
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 10 No. 2 (2010): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (327.297 KB) | DOI: 10.23960/j.hptt.210116-122

Abstract

Characterization of active transmitter among population of the leafhopper, Nephotettix virescens Distant in relation to the transmission of the rice tungro virus. The objective of this research was to identify the characteristics of Nephotettix virescens as the active transmitter of the rice tungro virus. The specimens of N. virescens active transmitter were determined by differing in their ability to transmit the tungro virus to healthy plants. These specimens were used as samples to identify their morphological and molecular characters. Five external morphological characters, namely length of head to abdomen, hind femur, head, fore wing, and length of stylet were measured to determined their character. The protein banding patterns of the active transmitter were identified by protein separating technique on SDS-Page. Based on the morphological characters, especially the length of head to abdomen, hind femur, head, fore wing, and length of stylet, it showed that N. virescens active transmitter and non transmitter were similar. There were no specific morphological characters for N. virescens active transmitter. However, N. virescens active transmitter showed different protein banding pattern. Three distinct protein bands, estimated as 173, 134, and 68 kDa were observed in the specimens of active transmitter. These three protein bands, were absent in the non transmitter.
EFEKTIVITAS SATELIT RNA YANG BERASOSIASI DENGAN CUCUMBER MOSAIC VIRUS (CARNA-5) UNTUK MENGENDALIKAN PENYAKIT VIRUS PADA TANAMAN TOMAT Hasriadi Mat Akin; Muhammad Nurdin; Patrisius Binsar Simamora; Marlaba Sitorus
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 12 No. 2 (2012): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
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Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (209.625 KB) | DOI: 10.23960/j.hptt.212177-184

Abstract

Two strains of CMV associated satellite RNA (CARNA 5.1 and CARNA 5.2) were evaluated to control severe strain of Cucumber mosaic virus (CMV-G), Tobacco mosaic virus (TMV), and Potato virus Y (PVY) on tomato plants. Tomato plants were mechanically inoculated with CARNA 5.1 and CARNA 5.2 to protect the plants from super infection of CMV-G, TMV, and PVY. The result revealed that inoculation of CARNA 5.1 and CARNA 5.2 to tomato plants effectively controlled the plants from CMV-G super infection. The effectiveness of CARNA 5.1 and CARNA 5.2 to unrelated virus, TMV and PVY, was evaluated in this experiment. The result showed that CARNA 5.1 and CARNA 5.2 inhibited TMV and PVY infection. CMV-G super infection on protected tomato plants showed mild disease symptoms, significant redution of plant growth, height, and yield; however, nonprotected plants showed severe disease symptoms and significant inhibition of plant growth and tomato yield.
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.
SEBARAN DAN EFIKASI BERBAGAI GENUS CENDAWAN ENTOMOPATOGEN TERHADAP Riptortus linearis PADA KEDELAI DI LAMPUNG DAN SUMATRA SELATAN Yusmani Prayogo .
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 6 No. 1 (2006): MARET, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (99.167 KB) | DOI: 10.23960/j.hptt.1614-22

Abstract

Distribution and efficacy on various entomopathogenic fungi at Lampung and South Sumatra as a biological control agent against Riptortus linearis. This study was conducted from June to September 2005. The fungi were isolated from insect cadavers, insect bait, and soil sample from the soybean land. Each fungal sample was identified base on their morphology using determination keys. The fungal isolates were inoculated to the pod sucking bug Riptortus linearis. The results showed that there were six genera of entomopathogenic fungi that can be isolated, i.e. Fusarium sp., Penicillium sp., Metarhizium sp., Verticillium sp., Paecilomyces sp., and Beauveria sp. The fungus-induced mortality of R. linearis varied between 5 - 30%. Paecilomyces sp. isolated from Lebak Batang Baru induced 25%; Beauveria sp. isolated from Pulung Kencana 25%; Verticillium sp. isolated from Kaliungu 20%. Metarhizium sp. isolated from Terbanggi Subing 20% and Verticillium sp. isolated from Lebak batang Baru 20% mortality. It was suggested that these fungi have potential as biological control agents for the pod sucking bug in dry acid land.
SELEKSI DAN UJI ANTAGONISME TRICHODERMA SPP. ISOLAT TAHAN FUNGISIDA NABATI TERHADAP PERTUMBUHAN PHYTOPHTHORA CAPSICI Joko Prasetyo, Efri & Radix Suharjo .
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 9 No. 1 (2009): MARET, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (286.993 KB) | DOI: 10.23960/j.hptt.1958-66

Abstract

Screening and testing of isolate of Trichoderma spp. resistant to botanical fungicides on the growth of P. capsici. The research was conducted at the Plant Disease laboratory, Plant Protection Department, Faculty of Agriculture, Lampung University from March – November 2007. The aim of the research was to find isolate of Trichoderma spp. resistant to botanical fungicide which still have its capability to inhibit the growth of P. capsici. Completely randomized design with three replicates was used in the research. Data collected in this research were isolates of Trichoderma spp. resistant to botanical fungicides and inhibition percentage of isolates of Trichoderma spp. resistant to botanical fungicide on the growth of P. capsici. The data were analysed with anova and continued with LSD test at 5% of significant level. As much as 9 isolates of Trichoderma spp. resistant to botanical fungicide were found. Three isolates of T. viride could survive in the 100% of tumeric powder (C), east indian galangale powder (A), and clove leaf powder (B). Two isolates of T. harzianum could survive in the 100% of tumeric powder (A) and clove leaf powder (A). One isolate survived in the 90% of east indian galangale powder (D). Two isolates of T. koningii also could survive in the 100% of tumeric powder (A) and clove leaf powder (A). One isolate survived in the 90% of east indian galangale powder (C). All of the isolates inhibited P. capsici. All of the isolates found statistically had the same capability to inhibit the growth of P. capsici.
EVALUASI LAPANG TERHADAP DAMPAK APLIKASI INSEKTISIDA ISOPROCARB PADA SERANGGA PREDATOR DAN HAMA KUTU PERISAI AULACASPIS TEGALENSIS Zhnt. (HOMOPTERA: DIASPIDIDAE) DI PERTANAMAN TEBU Rosma Hasibuan .
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 4 No. 2 (2004): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (80.892 KB) | DOI: 10.23960/j.hptt.2469-74

Abstract

Field evaluation of isoprocarb insecticide-application-effects on predacious insects and scale pest Aulacaspis tegalensis Zhnt. (Homoptera: Diaspididae) in sugarcane plantations. The sugarcane scale, Aulacaspis tegalensis Zehntner, is a new serious pest of sugarcane in Lampung Province. Over the years, most control practices against A. tegalensis rely on the use of chemical insecticide. A field study was conducted to assess the impact of isoprocarb (carbamate-insecticide) on sugarcane scale pests and their natural predators in sugarcane plantation. The results indicated that the application of isoprocarb (at recommended concentration = 1.25 mg/L) in sugarcane field failed to cause a significant reduction on scale pest populations. In contrast, the numbers of predacious insects was significantly reduced in isoprocarb-treated-field plots. The predacious insects in association with scale pests in sugarcane fields were predominantly coccinellids. Four species of primary predacious coccinellids attacking scale pests were: Chilocorus melanophthalmus, Chilocorus sp., Scymnus sp, and Telsimia sp. This field study indicated that the predacious species were more susceptible to isoprocarb than their prey.
GANGGUAN BIOLOGI PADA CROCIDOLOMIA PAVONANA (F.) (LEPIDOPTERA: PYRALIDAE) AKIBAT PERLAKUAN DENGAN EKSTRAK BIJI AGLAIA ODORATISSIMA BLUME (MELIACEAE) Erwin Cuk Surahmat dan Djoko Prijono .
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 (103.831 KB) | DOI: 10.23960/j.hptt.2235-41

Abstract

Biological interferences in Crocidolomia pavonana (F.) (Lepidoptera: Pyralidae) as affected by the treatment with seed extract of Aglaia odoratissima Blume (Meliaceae). The effects of Aglaia odoratissima seed extract on mortality, feeding, development, and reproduction of Crocidolomia pavonana were studied in laboratory. Ground seeds of A. odoratissima were extracted with methanol, the extract obtained was partitioned in n-hexane and 95% aqueous methanol, and the methanol fraction was partitioned further in chloroform and water. The chloroform fraction obtained was used in all tests. In mortality tests, first- and second-instar larvae C. pavonana were fed with extract-treated broccoli leaf discs. The first instars were also used in the test to determine the effect of the test extract on development and fecundity of C. pavonana, while the second instars were also used in antifeedant test. A. odoratissima extract acted relatively slowly and larval mortality mostly occurred in the instar that was given the feeding treatment. This is also reflected by the relatively small difference between LC50 against second+third instar (0.166%) and that against the second instar only (0.175%). The test extract at all concentrations tested also inhibited feeding by C. pavonana larvae. The test extract at 0.471% delayed the development from the first instar to the pupal stage by 2.57 days compared with control. The treatment with the test extract at 0.095-0.471% decreased the fecundity of the females C. pavonana by 8.6-85.6%. Those various biological interferences in C. pavonana caused by the treatment with A. odoratissima extract can result in substantial suppression of the target pest population in the field.
IDENTIFIKASI PATOTIPE GLOBODERA ROSTOCHIENSIS MENGGUNAKAN KLON DIFERENSIAL . Lisnawita; . Supramana; Gede Suastika
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 13 No. 2 (2013): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (110.967 KB) | DOI: 10.23960/j.hptt.213105-109

Abstract

Identification of Globodera rostochiensis using differential clones. Potato cyst nematode, Globodera rostochiensis, is a relatively new pathogen in Indonesia that becomes a constraint to potato production. To manage the parasite effectively, it is very important to identify the pathotype of G. rostochiensis populations. Therefore, this research was carried out to identify G. rostochiensis pathotypes. Four G. rostochiensis samples, consisting of three samples from East Java and one sample from Central Java, were identified using a set of differential clones. The result showed that G. rostochiensis samples from East Java were new pathotype, whereas the sample from Central Java was Ro1 pathotype.
KELIMPAHAN DAN KEANEKARAGAMAN SPESIES SERANGGA PREDATOR DAN PARASITOID Aphis gossypii DI SUMATERA SELATAN . Riyanto; Siti Herlinda; Chandra Irsan; Abu Umayah
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 11 No. 1 (2011): MARET, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (76.273 KB) | DOI: 10.23960/j.hptt.11157-68

Abstract

This study was aimed to analysis abundance and species diversity of predatory insects and parasitoid of Aphis gossypii from lowland and highland areas of South Sumatra. Survey of was conducted in 11 vegetable centers of South Sumatra. The results showed that 20 species of predatory insects and 3 species of parasitoids were found from the survey. The predatory insects consisted of 15 species of coccinellid beetles, two species of syrphids, and one species of chamaemyiid, mantid and staphylinid. Parasitoid found were 2 species of Aphidiidae (Diaretiella rapae and Aphidius sp.) and a species of Aphelinidae (Aphelinus sp.). The highest abundance of the predator was found in Soak (42.61 larvae and adults) and the highest abundance of the parasitoid was found in Talang Buruk (25.99 adults). The highest species diversity of the predator and the parasitoid were found in Soak (15 species and H’= 0.94) and in Talang Buruk (2 species and H’ = 0.27), respectively. Abundance and species diversity of the predators and parasitoids were higher in the dry season than those in rainy season. Thus, the abundance and species diversity of the predators and parasiotids were higher in the lowland than highland areas in South Sumatra, while the seasons affected the abundance and species diversity of the predators and parasitoids.

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