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Biologi dan kelimpahan tungau merah Tetranychus sp. (Acari: Tetranychidae) pada dua kultivar jarak pagar (Jatropha curcas) Santoso, Sugeng; Rauf, Aunu; Gultom, Nelly Mastina; Karmawati, Elna; Rumini, Widi
Jurnal Entomologi Indonesia Vol 11, No 1 (2014)
Publisher : Perhimpunan Entomologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5994/jei,11,1,34-42

Abstract

Red spider mite Tetranychus sp. is one of the most important pests attacking leaves of Jatropha curcas. The objective of this study was to elucidate life history parameters and abundance of spider mite on two J. curcas cultivars. Field studies were carried out in BALITTRI Pakuwon Sukabumi, and laboratory experiments were conducted at the Department of Plant Protection, Bogor Agricultural University, from June to November 2008. Cultivars significantly affected several life history parameters of the spider mite. Spider mite reared on IP1-P cultivar have longer oviposition period and higher fecundity than those on IP2-P (7.00 days and 25.56 eggs against 5.00 days and 10.00 eggs). The sex ratio of spider mite was 3.2 : 1 on IP1-P and 2.5 : 1 on IP2-P. Intrinsic rate of increase was also higher on IP1-P. However, field studies indicated that the spider mite were less abundant on this cultivar. These might be due to the presence of other arthropods which were higher on IP1-P. In general, the highest population of spider mite occurred in August and the lowest in October–November. Predatory mite Family Phytoseiidae was found associated with spider mite, however its role as natural control agent was not significant.
Biologi Selenothrips rubrocinctus Giard (Thysanoptera: Thripidae) pada Tanaman Jarak Pagar Soesanthy, Funny; Maryana, Nina; Sartiami, Dewi; Karmawati, Elna
Jurnal Tanaman Industri dan Penyegar Vol 3, No 3 (2012): Buletin Riset Tanaman Rempah Dan Aneka Tanaman Industri
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Trips pita merah, Selenothrips rubrocinctus Giard (Thysanoptera: Thripidae), merupakan salah satu hama pada tanaman jarak pagar (Jatropha curcas L.). Penelitian bertujuan menganalisis biologi dan morfologi S. rubrocinctus pada tanaman jarak pagar. Penelitian dilaksanakan di Balai Penelitian Tanaman Rempah dan Aromatik dan Laboratorium Departemen Proteksi Tanaman Institut Pertanian Bogor, pada bulan April 2008 sampai Mei 2009. Penelitian meliputi identifikasi Thysanoptera yang ditemukan di lapang, untuk meyakinkan bahwa trips yang ditemukan adalah S. rubrocinctus. Pengamatan biologi meliputi siklus hidup, waktu telur menetas, nisbah kelamin, dan uji partenogenetik. Hasil penelitian menunjukkan tipe perkembangan S. rubrocinctus merupakan peralihan antara paurometabolous dan holometabolous. Siklus hidup meliputi telur, nimfa (2 fase), pupa (prapupa dan pupa), dan imago. S. rubrocinctus hidup pada tanaman terutama pada daun. Lama perkembangan stadia pradewasa sekitar 18-25 hari, umur imago mencapai 14-15 hari.  Biology of Selenothrips Rubrocinctus Giard (Thysanoptera: Thripidae) on JatrophaABSTRACT Red-banded thrips, Selenothrips rubrocinctus Giard (Thysanoptera: Thripidae), is one of the pests on the plant of physics nut (Jatropha curcas L.). The study aims to analyze the biology and morphology S. rubrocinctus on jatropha plant. Research conducted in Indonesian Medicinal and Aromatics Plants Research Institute and Pest and Disease Laboratory, Bogor Agricultural Institut, on April 2008 until Mei 2009. The research include identification of Thysanoptera were found in the field, to make sure that thrips was found are S. rubrocinctus. Biological research include life cycles, time egg hatching, sex ratio, and parthenogenetics characteristics. Developmental type of S. rubrocinctus is transition between paurometabolous and holometabolous. Their life cycle consist of egg, nymph (2 phases), pupae (prapupae and pupae), and adult.  They spent the whole life on the plant, especially on the leaves.  Developmental time of immature stages were about 18-25 days, ages of adults reached 14-15 days.
Sidik Peubah Ganda bagi para Peneliti Karmawati, Elna
Buletin Penelitian Tanaman Rempah dan Obat Vol 1, No 1 (1986): Buletin Penelitian Tanaman Rempah dan Obat
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/bullittro.v1n1.1986.30-46

Abstract

Test for hypothesis specified equality of the vector of means associa with two threadments in the multivariate case and further use is made of generalized D2 and Hotellings T2 – statistic. For these it is assumed that the two treatments are normally distributed and covariance matrices are equals. If the hipothesis HO : U1 = U2 is ejected, simultaneous confidence intervals are presented in order that we can dcide which components are contributing to the rejection of the hipothesis. A number of multivariate population associated with different treadment have mean vectors U1 , U2 , ………. Ut . it is desired to test the hipothesis, HO : U1 =U2 = Ut , that these are all equal. A standard format for summarizing the necessary computations is analysis of variance for multivariate data.
INERGISME ANTARA NEMATODA PATOGEN SERANGGA Steinernema sp. DAN MINYAK BIJI JARAK PAGAR (Jatropha curcas L.) TERHADAP MORTALITAS DAN EFEK LANJUTAN LARVA Spodoptera litura F. TUKIMIN, TUKIMIN; KARMAWATI, ELNA; PRABOWO, HERI
853-8212
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

ABSTRAKPenggunaan insektisida kimia untuk pengendalian seranggamenimbulkan dampak negatif. Oleh karena itu, diperlukan pengendalianhama yang ramah lingkungan. Nematoda patogen serangga dan pestisidanabati minyak biji jarak pagar (MBJP) memiliki peluang untukdikembangkan sebagai agensia pengendali Spodoptera litura F. Tujuanpenelitian ini untuk mengevaluasi efek kombinasi antara nematodapatogen serangga Steinernema sp. dan pestisida nabati MBJP terhadapmortalitas dan efek lanjutan larva S. litura. Penelitian dilaksanakan diLaboratorium Entomologi, Balai Penelitian Tanaman Pemanis dan Seratpada bulan Maret sampai Juni 2012, menggunakan rancangan acakkelompok (RAK) pola faktorial dengan 4 ulangan. Perlakuan konsentrasiMBJP yang digunakan adalah 2,5 ; 5 ; 10 dan 20 ml/l, kontrol air, sertakontrol air + 1 g deterjen. Konsentrasi Steinernema sp. adalah 0, 200, 400,dan 800 JI (juvenil infektif)/ml. Nematoda Steinernema sp. dimasukkan kedalam larutan pada saat aplikasi larva S. litura sebanyak 25 larva instardua tiap perlakuan. Jumlah larva yang mati diamati pada 24, 48, 72, 96,dan 120 jam setelah penyemprotan. Hasil penelitian menunjukkan bahwakombinasi konsentrasi antara MBJP dan Steinernema sp. yangmenghasilkan mortalitas larva S. litura tertinggi adalah 10 ml/l dan 400 JI/latau 2,5 ml/l dan 800 JI/l. Efek lanjut MBJP mengakibatkan kerusakanpada fase prapupa dan pupa, yaitu menjadi cacat serta penurunan jumlahtelur dan kemampuan telur menetas. Kenaikan konsentrasi MBJP dari 2,5ke 20 ml/l mengakibatkan penurunan kemampuan penetasan telur dari76,29 menjadi 32,37%.Kata kunci: Steinernema sp., Jatropha curcas, Spodoptera lituraABSTRACTThe use of chemical insecticides to control pests causes variousnegative impacts. Thus, environmentally friendly methods of control aremuch in need recently. The combination of entomopathogenic nematodesand botanical insecticides based on physic nut oil (PNO) has opened upnew possibilities of promising control methods against Spodoptera lituraF. The objective of the study was to evaluate the combination effectbetween botanical insecticides PNO and the entomopathogenic nematodeSteinernema sp. on S. litura. The research was conducted at the laboratoryof Entomology Indonesian Sweetener and Fiber Crops Research Institutefrom March to June 2012. The treatments were arranged in a completelyrandomized block design (CRBD) with factorial pattern, replicated fourtimes. The concentrations of PNO were 2,5; 5; 10, and 20 ml/l, controlwater and control water + 1 g detergent. Concentration of Steinernema sp.were 0,200, 400, and 800 IJ (infective juvenile)/ml. Nematodes wereadded simultaneously after application of PNO. Insect larvae were exposedto various concentrations of Steinernema sp. and PNO. Numbers of deadlarvae were observed at 24, 48, 72, 96, 120 hours after spraying. The resultshowed that the concentration combination between PNO and nematodewhich resulted maximum larvae mortality is 10 ml/l and 400 IJ/ml or 2,5ml/l and 800 IJ/ml. The impacts of PNO were disabled prepupa and pupa,decrease of eggs number and hatching ability. The increase ofconcentration used from 2.5 to 20 ml/l resulted the decreased of hatchingfrom 76.29 to 36.37%.Key words: Steinernema sp., Jatropha curcas, Spodoptera litura
Biologi Selenothrips rubrocinctus Giard (Thysanoptera: Thripidae) pada Tanaman Jarak Pagar Soesanthy, Funny; Maryana, Nina; Sartiami, Dewi; Karmawati, Elna
Jurnal Tanaman Industri dan Penyegar Vol 3, No 3 (2012): Buletin Riset Tanaman Rempah Dan Aneka Tanaman Industri
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Trips pita merah, Selenothrips rubrocinctus Giard (Thysanoptera: Thripidae), merupakan salah satu hama pada tanaman jarak pagar (Jatropha curcas L.). Penelitian bertujuan menganalisis biologi dan morfologi S. rubrocinctus pada tanaman jarak pagar. Penelitian dilaksanakan di Balai Penelitian Tanaman Rempah dan Aromatik dan Laboratorium Departemen Proteksi Tanaman Institut Pertanian Bogor, pada bulan April 2008 sampai Mei 2009. Penelitian meliputi identifikasi Thysanoptera yang ditemukan di lapang, untuk meyakinkan bahwa trips yang ditemukan adalah S. rubrocinctus. Pengamatan biologi meliputi siklus hidup, waktu telur menetas, nisbah kelamin, dan uji partenogenetik. Hasil penelitian menunjukkan tipe perkembangan S. rubrocinctus merupakan peralihan antara paurometabolous dan holometabolous. Siklus hidup meliputi telur, nimfa (2 fase), pupa (prapupa dan pupa), dan imago. S. rubrocinctus hidup pada tanaman terutama pada daun. Lama perkembangan stadia pradewasa sekitar 18-25 hari, umur imago mencapai 14-15 hari.  Biology of Selenothrips Rubrocinctus Giard (Thysanoptera: Thripidae) on JatrophaABSTRACT Red-banded thrips, Selenothrips rubrocinctus Giard (Thysanoptera: Thripidae), is one of the pests on the plant of physics nut (Jatropha curcas L.). The study aims to analyze the biology and morphology S. rubrocinctus on jatropha plant. Research conducted in Indonesian Medicinal and Aromatics Plants Research Institute and Pest and Disease Laboratory, Bogor Agricultural Institut, on April 2008 until Mei 2009. The research include identification of Thysanoptera were found in the field, to make sure that thrips was found are S. rubrocinctus. Biological research include life cycles, time egg hatching, sex ratio, and parthenogenetics characteristics. Developmental type of S. rubrocinctus is transition between paurometabolous and holometabolous. Their life cycle consist of egg, nymph (2 phases), pupae (prapupae and pupae), and adult.  They spent the whole life on the plant, especially on the leaves.  Developmental time of immature stages were about 18-25 days, ages of adults reached 14-15 days.
Pola Sebaran Penghisap Buah Lada di Kabupaten Bangka Karmawati, Elna
Buletin Penelitian Tanaman Rempah dan Obat Vol 3, No 1 (1988): Buletin Penelitian Tanaman Rempah dan Obat
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/bullittro.v3n1.1988.6-11

Abstract

Penelitian tentang pola sebaran Dasynus piperis China pada tanaman lada dilakukan di Kabupaten Bangka, Propinsi Sumatera Selatan pada bulan Februari 1988. Metode penarikan contoh yang digunakan adalahh penarikan contoh acak bertingkat dengan tingkatannya berturut-turut: kecamatan, desa, petani dan tanaman. Ternyata telur diletakkan paling banyak pada daun di bagian tengah tanaman, sedang nimfa ditemukan pada buah dibangdingkan pada daun. Sebaran antar tanaman diukur dengan menggunakan K dari sebaran binom negative, aturan pangkat Taylor dan koefisien regresi Iwao. Model Iwao lebih baik dari model Taylor dan menunjukkan bahwa kelompok telur diletakkan secara acak olek imago betina pada tanaman, sedang nimfa menyebar secara mengelompok. Koefisien regresi Iwao dapat digunakan untuk menentukan banyaknya contoh yang dibutuhkan pada tingkat kesalahan 25%. Koefisien regresi model Taylor dapat digunakan untuk tranformasi data telur dan nimfa yang sesuai.
Biologi dan kelimpahan tungau merah Tetranychus sp. (Acari: Tetranychidae) pada dua kultivar jarak pagar (Jatropha curcas) Santoso, Sugeng; Rauf, Aunu; Gultom, Nelly Mastina; Karmawati, Elna; Rumini, Widi
Jurnal Entomologi Indonesia Vol 11, No 1 (2014): April
Publisher : Perhimpunan Entomologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5994/jei.11.1.34

Abstract

Red spider mite Tetranychus sp. is one of the most important pests attacking leaves of Jatropha curcas. The objective of this study was to elucidate life history parameters and abundance of spider mite on two J. curcas cultivars. Field studies were carried out in BALITTRI Pakuwon Sukabumi, and laboratory experiments were conducted at the Department of Plant Protection, Bogor Agricultural University, from June to November 2008. Cultivars significantly affected several life history parameters of the spider mite. Spider mite reared on IP1-P cultivar have longer oviposition period and higher fecundity than those on IP2-P (7.00 days and 25.56 eggs against 5.00 days and 10.00 eggs). The sex ratio of spider mite was 3.2 : 1 on IP1-P and 2.5 : 1 on IP2-P. Intrinsic rate of increase was also higher on IP1-P. However, field studies indicated that the spider mite were less abundant on this cultivar. These might be due to the presence of other arthropods which were higher on IP1-P. In general, the highest population of spider mite occurred in August and the lowest in October–November. Predatory mite Family Phytoseiidae was found associated with spider mite, however its role as natural control agent was not significant.
SINERGISME ANTARA NEMATODA PATOGEN SERANGGA Steinernema sp. DAN MINYAK BIJI JARAK PAGAR (Jatropha curcas L.) TERHADAP MORTALITAS DAN EFEK LANJUTAN LARVA Spodoptera litura F. Tukimin, .; Karmawati, Elna; Prabowo, Heri
Jurnal Penelitian Tanaman Industri Vol 20, No 2 (2014): Juni 2014
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/littri.v20n2.2014.93 - 100

Abstract

ABSTRAKPenggunaan   insektisida   kimia   untuk   pengendalian   serangga menimbulkan dampak negatif. Oleh karena itu, diperlukan pengendalian hama yang ramah lingkungan. Nematoda patogen serangga dan pestisida nabati   minyak   biji   jarak   pagar (MBJP)  memiliki  peluang  untuk dikembangkan sebagai agensia pengendali Spodoptera litura F. Tujuan penelitian  ini  untuk  mengevaluasi  efek  kombinasi  antara  nematoda patogen serangga Steinernema sp. dan pestisida nabati MBJP terhadap mortalitas dan efek lanjutan larva S. litura. Penelitian dilaksanakan di Laboratorium Entomologi, Balai Penelitian Tanaman Pemanis dan Serat pada  bulan  Maret  sampai  Juni 2012,  menggunakan  rancangan  acak kelompok (RAK) pola faktorial dengan 4 ulangan. Perlakuan konsentrasi MBJP yang digunakan adalah 2,5 ; 5 ; 10 dan 20 ml/l, kontrol air, serta kontrol air + 1 g deterjen. Konsentrasi Steinernema sp. adalah 0, 200, 400, dan 800 JI (juvenil infektif)/ml. Nematoda Steinernema sp. dimasukkan ke dalam larutan pada saat aplikasi larva S. litura sebanyak 25 larva instar dua tiap perlakuan. Jumlah larva yang mati diamati pada 24, 48, 72, 96, dan 120 jam setelah penyemprotan. Hasil penelitian menunjukkan bahwa kombinasi   konsentrasi   antara   MBJP   dan   Steinernema   sp.   yang menghasilkan mortalitas larva S. litura tertinggi adalah 10 ml/l dan 400 JI/l atau 2,5 ml/l dan 800 JI/l. Efek lanjut MBJP mengakibatkan kerusakan pada fase prapupa dan pupa, yaitu menjadi cacat serta penurunan jumlah telur dan kemampuan telur menetas. Kenaikan konsentrasi MBJP dari 2,5 ke 20 ml/l mengakibatkan penurunan kemampuan penetasan telur dari 76,29 menjadi 32,37%.Kata kunci: Steinernema sp., Jatropha curcas, Spodoptera lituraSinergism between Entomopathogenic Nematodes Steinernema sp. and Physic Nut Oil (Jatropha curcas L.) against Mortality and Continuous Effect ofSpodoptera litura F. Larvae   ABSTRACTThe use of chemical insecticides to control pests causes various negative impacts. Thus, environmentally friendly methods of control are much in need recently. The combination of entomopathogenic nematodes and botanical insecticides based on physic nut oil (PNO) has opened up new possibilities of promising control methods against Spodoptera litura F. The objective of the study was to evaluate the combination effect between botanical insecticides PNO and the entomopathogenic nematode Steinernema sp. on S. litura. The research was conducted at the laboratory of Entomology Indonesian Sweetener and Fiber Crops Research Institute from March to June 2012. The treatments were arranged in a completely randomized block design (CRBD) with factorial pattern, replicated four times. The concentrations of PNO were 2,5; 5; 10, and 20 ml/l, control water and control water + 1 g detergent. Concentration of Steinernema sp. were 0,200, 400, and 800 IJ (infective juvenile)/ml. Nematodes were added simultaneously after application of PNO. Insect larvae were exposed to various concentrations of Steinernema sp. and PNO. Numbers of dead larvae were observed at 24, 48, 72, 96, 120 hours after spraying. The result showed that the concentration combination between PNO and nematode which resulted maximum larvae mortality is 10 ml/l and 400 IJ/ml or 2,5 ml/l and 800 IJ/ml. The impacts of PNO were disabled prepupa and pupa, decrease  of  eggs  number  and  hatching  ability.  The  increase  of concentration used from 2.5 to 20 ml/l resulted the decreased of hatching from 76.29 to 36.37%.Key words: Steinernema sp., Jatropha curcas, Spodoptera litura
PENGARUH MINYAK JARAK PAGAR (Jatropha curcas LINN.) TERHADAP MORTALITAS, BERAT PUPA, DAN PENELURAN HAMA JARAK KEPYAR SW, TUKIMIN; SOETOPO, DECIYANTO; KARMAWATI, ELNA
Jurnal Penelitian Tanaman Industri Vol 16, No 4 (2010): Desember 2010
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/littri.v16n4.2010.159 - 164

Abstract

ABSTRAKPenelitian pengaruh minyak jarak pagar (Jatropha curcas L.)terhadap mortalitas, berat pupa dan peneluran larva Achaea janata belumpernah dilakukan di Indonesia. Berdasarkan analisis yang dilakukansebelumnya minyak jarak pagar mengandung phorbol ester yang dapatdigunakan sebagai biopestisida dan Achaea janata merupakan hama utamapada tanaman jarak kepyar. Penelitian ini telah dilaksanakan diLaboratorium Entomologi, Balai Penelitian Tanaman Tembakau dan SeratMalang pada bulan April - Juli 2009, menggunakan rancangan acakkelompok dengan 4 perlakuan konsentrasi minyak jarak pagar, satupembanding, satu kontrol air dan kontrol detergen, diulang tiga kali.Tujuan penelitian adalah untuk mengetahui efek phorbol ester dalamminyak biji jarak pagar (MJP) untuk membunuh larva A. janata. Duaaksesi minyak biji jarak pagar yang diuji adalah: SP 67 asal SulawesiSelatan dan Jatim 45 asal Jawa Timur. Pengamatan meliputi jumlahmortalitas larva, berat prepupa, pupa, jumlah telur, dan telur tetas. Hasilpenelitian menunjukkan bahwa aksesi SP 67 yang memiliki kandunganphorbol ester 9,49 µg/ml dengan konsentrasi 5 ml minyak biji jarak pagar(J. curcas) + 1 g detergen/liter air cukup efektif dan mengakibatkanmortalitas larva A. janata 85,34%, LC 50 =2,33 ml/L, 72 jam setelahpenyemprotan. Jumlah telur 362 butir dan telur tetas 34,27%. Aksesi Jatim45 yang memiliki kandungan phorbol ester 4,39 µg/ml dengan konsentrasi10 ml minyak biji jarak pagar (J. curcas) + 1 g detergen/liter air cukupefektif dan mengakibatkan mortalitas larva A. janata 85,34%, LC 50 = 9,35ml/liter pada 72 jam setelah penyemprotan. Jumlah telur 487 butir dantelur tetas 34,75%. Kedua aksesi tersebut mengakibatkan mortalitas larvaA. janata dan efek lanjutan mengakibatkan cacat larva, prepupa, dan pupa,penurunan jumlah telur dan presentase telur tetas.Kata kunci: Jatropha curcas L, phorbol ester, aksesi, minyak biji jarakpagar, mortalitas, larva, Achaea janata L.ABSTRACTEffects of Jatropha curcas Crude Oil (JCO) on Mortality,Weight of Pupae, and Fertility of Achaea janataStudy on the effects of JCO on mortality, weight of pupae, andfertility of Achaea janata has never been done in Indonesia. Based onanalysis, JCO contains phorbol ester which can be used as biopesticide.A. janata is a main pest on castor oil plants. This study was carried out atEntomology Laboratory of Indonesian Tobacco and Fiber Crops ResearchInstitute (ITOFCRI) in Malang from April through July 2009. Theexperiment was arranged using randomized block design with 7 treatmentsand 3 replicates. The objective of the research was to find out the ability ofJCO to kill larvae of A. janata and its effect on pupae weight and fertility.This experiment tested two physic nut accessions : SP 67 (originated fromSouth Sulawesi) and Jatim 45 (from East Java). Observations included thenumber of larvae mortality, weights of prepupae and pupae, number ofeggs, and percentage of hatches. Results showed that SP 67 accessioncontaining 9.49 µg phorbol ester/ml oil with concentration of 5 ml JCO +1 g detergent/l was fairly effective to kill larvae of A. janata (LC 50 = 2.33ml/l) after 72 hours of spraying. Pupae laid 362 eggs and only 34.27% ofthe eggs hatched. Jatim 45 accession containing 4.3 g/µg phorbol ester perml oil with concentration of 10 ml JCO + 1 g detergen/l was fairlyeffective to kill larvae of A. janata (LC 50 = 9.35 ml/l) after 72 hours ofspraying. Only 34.75 % of the 487 eggs hatched.Key words: Jatropha curcas L., phorbol ester, accessions, JCO,mortalily, larvae, Achaea janata L.
Biologi Selenothrips rubrocinctus Giard (Thysanoptera: Thripidae) pada Tanaman Jarak Pagar Soesanthy, Funny; Maryana, Nina; Sartiami, Dewi; Karmawati, Elna
Jurnal Tanaman Industri dan Penyegar Vol 3, No 3 (2012): Buletin Riset Tanaman Rempah Dan Aneka Tanaman Industri
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jtidp.v3n3.2012.p207-216

Abstract

Trips pita merah, Selenothrips rubrocinctus Giard (Thysanoptera: Thripidae), merupakan salah satu hama pada tanaman jarak pagar (Jatropha curcas L.). Penelitian bertujuan menganalisis biologi dan morfologi S. rubrocinctus pada tanaman jarak pagar. Penelitian dilaksanakan di Balai Penelitian Tanaman Rempah dan Aromatik dan Laboratorium Departemen Proteksi Tanaman Institut Pertanian Bogor, pada bulan April 2008 sampai Mei 2009. Penelitian meliputi identifikasi Thysanoptera yang ditemukan di lapang, untuk meyakinkan bahwa trips yang ditemukan adalah S. rubrocinctus. Pengamatan biologi meliputi siklus hidup, waktu telur menetas, nisbah kelamin, dan uji partenogenetik. Hasil penelitian menunjukkan tipe perkembangan S. rubrocinctus merupakan peralihan antara paurometabolous dan holometabolous. Siklus hidup meliputi telur, nimfa (2 fase), pupa (prapupa dan pupa), dan imago. S. rubrocinctus hidup pada tanaman terutama pada daun. Lama perkembangan stadia pradewasa sekitar 18-25 hari, umur imago mencapai 14-15 hari.  Biology of Selenothrips Rubrocinctus Giard (Thysanoptera: Thripidae) on JatrophaABSTRACT Red-banded thrips, Selenothrips rubrocinctus Giard (Thysanoptera: Thripidae), is one of the pests on the plant of physics nut (Jatropha curcas L.). The study aims to analyze the biology and morphology S. rubrocinctus on jatropha plant. Research conducted in Indonesian Medicinal and Aromatics Plants Research Institute and Pest and Disease Laboratory, Bogor Agricultural Institut, on April 2008 until Mei 2009. The research include identification of Thysanoptera were found in the field, to make sure that thrips was found are S. rubrocinctus. Biological research include life cycles, time egg hatching, sex ratio, and parthenogenetics characteristics. Developmental type of S. rubrocinctus is transition between paurometabolous and holometabolous. Their life cycle consist of egg, nymph (2 phases), pupae (prapupae and pupae), and adult.  They spent the whole life on the plant, especially on the leaves.  Developmental time of immature stages were about 18-25 days, ages of adults reached 14-15 days.