82 research outputs found
Kajian Teknis Dan Ekonomis Sistem Tanam Dua Varietas Cabai Merah Di Dataran Tinggi
Full text link. Soetiarso, T. A. and W. Setiawati. 2010. Technical and Economical Studies on Two Hot PepperVarieties Planting Systems in Highland Areas. The research was conducted to assess the technical and economicalfeasibility of two hot pepper varieties planting systems i.e. monoculture and intercropping in highland areas. It wascarried out in IVEGRI's experimental garden from September 2006 to February 2007. The treatments used in theresearch consisted of two factors. The first factor was hot pepper varieties (Hot Chili and Tanjung-2) and the secondone was planting systems (monoculture of hot pepper and intercropping of hot pepper + cabbage). The results showedthat hot pepper intercropped with cabbage did not affect the growth of hot pepper. Some important pests and diseasesattacking hot pepper were crickets, thrips, bemisia, myzus, bacterial wilt, and anthracnose. Tanjung-2 was relativelymore resistant to pests and diseases than Hot Chili, and reduces of plant damage up to 50%. Agronomically, the yieldof Tanjung-2 as monocropped or intercropped was lower than Hot Chili. Compared to the other treatments, the use ofHot Chili variety intercropped with cabbage was the most profitable option economically. The marginal returns forthis option was greater than one (>1) and the highest (458.95%). The results suggest that the specifically-designedhighland hot pepper planting systems was not only technically feasible, but also economically viable. Hence, it hasgreat potential to be socially accepted and adopted by farmers as the end-users
Selektivitas Beberapa Insektisida terhadap Hama Liriomyza huidobrensis Blanchard (Diptera : Agromyzidae) dan Parasitoid Hemiptarsenus varicornis Girault (Hymenoptera : Eulophidae)
Full text linkLiriomyza huidobrensis merupakan hama baru pada tanaman kentang. Hama ini pertama kali dilaporkan menyerangtanaman kentang di Puncak, Jawa Barat pada tahun 1994 dan diduga telah resisten terhadap berbagai jenis insektisidadari golongan organofosfat, karbamat, dan piretroid sintetik. Upaya pengendalian hama tersebut diarahkan pada pro -gram pengendalian hama terpadu (PHT). Dalam pro gram tersebut penggunaan insektisida hanya dilakukan apabilapopulasi hama sudah mencapai ambang pengendalian dan jenis insektisida yang digunakan harus selektif. Tujuanpenelitian untuk mengetahui selektivitas 13 jenis insektisida yaitu insektisida yang efektif terhadap hama L.huidobrensis tetapi tidak membahayakan parasitoid Hemiptarsenus varicornis. Metode penelitian yang digunakanadalah metode pencelupan dan umpan beracun (masing-masing terdiri atas enam konsentrasi insektisida yang diujidan empat ulangan). Data mortalitas dikoreksi menggunakan rumus Abbott. Untuk mengetahui nilai LC50 digunakananalisis probit, sedangkan selektivitas insektisida ditentukan dengan membandingkan nilai LC50 insektisida terhadapL. huidobrensis dengan nilai LC50 H. varicornis. Hasil penelitian menunjukkan bahwa insektisida bensultap 50 WP,siromasin 75 WP, dan abamektin 18 EC merupakan insektisida yang pal ing efektif (LC50 masing-masing 3,92; 7,20;dan 0,54 ppm) untuk mengendalikan L. huidobrensis dan mempunyai sifat selektif (SR<1) terhadap parasitoid H.varicornis. Insektisida klorfenapir 100 SC, dimehipo 400 WSC, dimetoat 400 EC, karbosulfan 200 EC, danamamektin 19 EC merupakan jenis insektisida yang mempunyai daya racun cukup tinggi terhadap parasitoid H.varicornis.Kata kunci : Selektivitas; Insektisida; Liriomyza huidobrensis; Hemiptarsenus varicornis; Parasitoid.AB STRACT. Setiawati, W and A. Somantri. 2002. Se lec tiv ity of sev eral in sec ti cides to Liriomyza huidobrensisBlanchard (Diptera : Agromyzidae) and Hemiptarsenus varicornis Girault (Hymenoptera : Eulophidae)parasitoid. The leafminer flies are newly re corded as a pest on po tato in In do ne sia. It was firstly re ported to at tack po -tato in Puncak, West Java in 1994 and its has be come re sis tance to sev eral in sec ti cides such as mem ber oforganophosphorous, carbamate, and syn thetic pyrethroid groups. The IPM is the best strat egy way to con trol this pest.With the de vel op ment of IPM con cept, there has been in creas ing in ter est in mea sur ing and eval u at ing the im pact of in -secticide on use natural enemies. Selectivity of 13 insecticides on L. huidobrensis and its nat u ral en emy, H. varicorniswas in ves ti gated. The ex per i ment aimed to know the se lec tiv ity of 13 in sec ti cides which toxic to L. huidobrensis lar -vae but less or no toxic to parasitoid H. varicornis. Dip ping method and free feed ing method with six con cen tra tionsand four rep li ca tions were used to test the tox ic ity on L. huidobrensis and H. varicornis. The mor tal ity data of L.huidobrensis and H. varicornis were as sessed af ter treat ment and af ter cor rected by us ing the Abbott for mula. Probitanal y sis was used to de ter mine the LC 50 value. The se lec tiv ity ra tio was cal cu lated by di vid ing the LC50 value of L.huidobrensis with the LC 50 value of H. varicornis. The re sult of this ex per i ment in di cated that the most ef fec tive in -secticides to control L. huidobrensis were bensultap 50 WP; cyromazine 75 WP and abamectin 18 EC (LC 50 valuewere 3.92, 7.20, and 0.54 ppm re spec tively) with smaller se lec tiv ity ra tio (SR<1) for H. varicornis. Chlorfenapir 100SC, dimehypo 400 WSC, dimethoate 400 SC, carbosulfan 200 EC, and ammamektin 19 EC were highly toxic in sec ti -cides to H. varicornis
Kajian Teknis dan Ekonomis Sistem Tanam Dua Varietas Cabai Merah di Dataran Tinggi
Full text linkABSTRAK. Penelitian bertujuan mengkaji kelayakan teknis dan ekonomis sistem tanam monokultur dan tumpangsaridua varietas cabai merah di dataran tinggi. Penelitian dilaksanakan di Kebun Percobaan Balai Penelitian TanamanSayuran Lembang, dari bulan September 2006 sampai dengan Februari 2007. Penelitian menggunakan perlakuanyang terdiri atas dua faktor, yaitu varietas cabai merah (Hot Chili dan Tanjung-2) dan sistem tanam (monokulturcabai merah dan tumpangsari cabai merah + kubis), seluas 2.500 m2/perlakuan. Hasil penelitian menunjukkan bahwasistem tanam tumpangsari antara cabai merah dengan kubis tidak memengaruhi pertumbuhan tanaman cabai merah.Organisme pengganggu tumbuhan (OPT) yang menyerang pertanaman cabai merah selama percobaan berlangsungadalah gangsir, trips, kutukebul, kutudaun, layu bakteri, dan antraknos. Varietas Tanjung-2 terbukti relatif lebih tahanterhadap serangan OPT dibandingkan dengan varietas Hot Chili, serta mampu menekan kerusakan tanaman hingga50%. Secara teknis, hasil produksi varietas Tanjung-2 (monokultur dan tumpangari) lebih rendah dibanding HotChili. Secara ekonomis, penggunaan varietas Hot Chili yang ditumpangsarikan dengan kubis adalah yang palingmenguntungkan, dengan tingkat pengembalian marjinal yang lebih besar dari satu (>1) dan paling tinggi (458,95%)di antara perlakuan yang lain. Dengan diperolehnya teknologi sistem tanam cabai merah spesifik lokasi dataran tinggiyang secara teknis dapat diterapkan dan secara ekonomis menguntungkan, maka secara sosial akan mempunyaipeluang tinggi untuk diadopsi oleh petani.ABSTRACT. Soetiarso, T. A. and W. Setiawati. 2010. Technical and Economical Studies on Two Hot PepperVarieties Planting Systems in Highland Areas. The research was conducted to assess the technical and economicalfeasibility of two hot pepper varieties planting systems i.e. monoculture and intercropping in highland areas. It wascarried out in IVEGRI’s experimental garden from September 2006 to February 2007. The treatments used in theresearch consisted of two factors. The first factor was hot pepper varieties (Hot Chili and Tanjung-2) and the secondone was planting systems (monoculture of hot pepper and intercropping of hot pepper + cabbage). The results showedthat hot pepper intercropped with cabbage did not affect the growth of hot pepper. Some important pests and diseasesattacking hot pepper were crickets, thrips, bemisia, myzus, bacterial wilt, and anthracnose. Tanjung-2 was relativelymore resistant to pests and diseases than Hot Chili, and reduces of plant damage up to 50%. Agronomically, the yieldof Tanjung-2 as monocropped or intercropped was lower than Hot Chili. Compared to the other treatments, the use ofHot Chili variety intercropped with cabbage was the most profitable option economically. The marginal returns forthis option was greater than one (>1) and the highest (458.95%). The results suggest that the specifically-designedhighland hot pepper planting systems was not only technically feasible, but also economically viable. Hence, it hasgreat potential to be socially accepted and adopted by farmers as the end-users
Dinamika Populasi dan Pola Infestasi Liriomyza huidobrensis Blanchard pada Tanaman Kentang di Musim Kemarau dan Musim Hujan
Full text linkLiriomyza huidobrensis merupakan hama baru pada tanaman kentang. Hama ini pertama kali dilaporkan menyerangtanaman kentang di Puncak, Jawa Barat pada tahun 1994 dan diduga telah resisten terhadap berbagai jenis insektisidaseperti organofosfat, karbamat, dan piretroid sintetik. Upaya pengendalian diarahkan pada pengendalian hamaterpadu yang penerapannya bergantung pada bioekologi serangga hama. Tujuan dari penelitian ini adalah untukmengetahui dinamika L. huidobrensis dan musuh alaminya, serta pola infestasi pada tanaman kentang di musimkemarau dan musim hujan. Penelitian dilakukan di Kebun Percobaan Balai Penelitian Tanaman Sayuran Lembang,sejak bulan Juni 1999 sampai dengan bulan Pebruari 2000. Rancangan percobaan yang digunakan adalah PetakBerpasangan, terdiri atas dua perlakuan dan diulang enam kali. Hasil penelitian menunjukkan bahwa L. huidobrensismulai menyerang tanaman kentang sejak umur tiga minggu setelah tanam (MST) dan mencapai puncaknya pada umurempat, enam, dan delapan MST. Keberadaan kompetitor sangat mempengaruhi fluktuasi populasi L. huidobrensis.Selain itu faktor lingkungan abiotik seperti suhu, kelembaban, dan angin juga mempengaruhi fluktuasi populasi L.huidobrensis. Keberadaan musuh alami H. varicornis tidak mampu menekan serangan L. huidobrensis. Penggunaaninsektisida bensultaf 50 WP cukup efektif untuk mengendalikan L. huidobrensis. Pada musim kemarau serangan L.huidobrensis lebih tinggi bila dibandingkan dengan musim hujan. L. huidobrensis lebih memilih daun bawah dantengah sebagai tempat peletakan telur.Kata kunci : Solanum tuberosum; Dinamika populasi; Pola infestasi; Liriomyza huidobrensis; Musim kemarau;Musim hujan.AB STRACT. Setiawati, W., A. Somantri, and Purwati. 2002. Pop u la tion dy namic and in fes ta tion pat tern ofLiriomyza huidobrensis on po tato in dry sea son and rainy sea son. The leafminer flies are newly re corded as a peston po tato in In do ne sia. It was firstly re ported to at tack po tato in Puncak, west Java in 1994 and its has be came re sis -tance to sev eral in sec ti cide such as organophospate, carbamat, and syn thetic pyrethroid. In te grated pest man age mentis the best way to con trol this pest and in for ma tion of bioecology of this pest is im por tant to sup port im ple men ta tion ofin te grated pest man age ment (IPM) tech nol ogy in the field. The ob jec tives of this ex per i ment were to know pop u la tiondy namic of L. huidobrensis and its nat u ral en e mies and in fes ta tion pat tern of this pest on po tato in dry and rainy sea -son. This ex per i ment was con ducted at Re search In sti tute for Veg e ta bles (Lembang, West Java) from June 1999 toFeb ru ary 2000. Comparation paired de sign was used in this ex per i ment with two treat ments and rep li cated six times.Re sults of this ex per i ment in di cated that L. huidobrensis in vaded and at tacked po tato plants start ing from the shootemer gence stage or at three weeks af ter plant ing. Pop u la tion of L. huidobrensis fluc tu ated dur ing the grow ing pe riodof plants, and there were three pop u la tion peaks oc curred at four, six, and eight weeks af ter plant ing. Com pet i tors andabiotic fac tors such as tem per a ture, hu mid ity, and wind were more in flu enced L. huidobrensis pop u la tion thanparasitoid ac tiv ity. Bensultaf 50 WP in sec ti cide was ef fec tive to con trol L. huidobrensis. Pop u la tion of L.huidobrensis was higher in dry sea son than in rainy sea son. The adult of L. huidobrensis pre ferred to feed and ovipositon leaves lo cated in the bot tom and mid dle part of po tato plants
Preferensi Beberapa Varietas Tomat Dan Pola Infestasi Hama Kutu Kebul Serta Pengaruhnya Terhadap Intensitas Serangan Virus Kuning
Full text link. Setiawati, W., B.K. Udiarto, and N. Gunaeni. 2007. Preference and Infestation Pattern of Bemisia tabaci (Genn) on Some Tomatoes Varieties and Its Effect on Gemini Virus Infestations. Six tomatoes varieties of Gress, Idola, Ovation, BTM-855, Martha, and Cosmonot were evaluated in this study. The experiment was conducted at experimental field of Indonesian Vegetable Research Institute from September to December 2005, and laid in a randomized complete block design with 6 treatments and 4 replications. The data observed were egg number, nymphal number, and adult number on the upper, middle, and lower of leaflets, plant damage, infestation pattern, percentage of infected plant, and marketable yield. The results of this experiment indicated that (1) the preferred varieties for oviposition and activity of B. tabaci were Gress, Idola, and BTM-855, while Martha, Cosmonot, and Ovation were the least preferred, (2) none of the varieties was found to be resistant against gemini virus, however Martha variety was somewhat resistant, (3) Martha variety was relatively resistant to B. tabaci, H. armigera, and gemini virus with the highest yield of 42.09 t/ha. This variety has high density of glandular trichome,which was effective in reducing oviposition and nymphal feeding, and (4) the number of B. tabaci was found higher at the upper leaf than the middle and lower leaf strata
Teknik Perbanyakan Masal Predator Menochilus Sexmaculatus Pengendali Serangga Bemisia Tabaci Vektor Virus Kuning Pada Tanaman Cabai
Full text link. Muharam, A. and W. Setiawati. 2007. The Mass Propagation Technique of Menochilus sexmaculatus, the Predator of Bemisia tabaci, the Chilli-Yellow-Viruses Transmitting Vector. Bemisia tabaci is apparently known as one of the major pests on chilli pepper. Another important role of the pest is the capability of transmitting gemini virus on chilli pepper causing yellow diseases. A study on mass propagation of M. sexmaculatus, the predator of B. tabaci, was carried out in Screenhouses of Indonesian Vegetable Research Institute, Lembang, from April to November 2006. Consecutive steps of the study were (1) propagation of the predator using a factorial randomized block design, with 4 host plants and 2 preys, and (2) the test of the capability of M. sexmaculatus as the predator of B. tabaci and Myzus persicae, utilyzing a randomized block design with 6 treatments and 4 replications. The results indicated that a correlation was occurred between host plants and preys. The combination of Brassica sinensis as a host plant with M. persicae as a prey resulted in the best treatment for propagation of the predator with eggs production of 893.33, followed by the combinations of Zea mays with M. persicae, and B. sinensis with B. tabaci. One female of M. sexmaculatus was able to produce 140 to 975 eggs within 8 to 11 days, or 12 to 89 eggs per day. The peak of egg production was occurred from the 5th to 7th day. Mortality of M. sexmaculatus larvae was between 28.66 and 45.47%. The best ratio of female and male of the predator was 1 : 1. Within 24 hours the predator was able to attack B. tabaci and M. persicae up to 51.50 and 168.50 larvae, respectively. Life cycle of the predator was between 56 and 78 days: egg 4-5 days, larvae 20-25 days, pupa 4-6 days, and imago for 28-42 days. Female predators attacked B. tabaci much more than male and larvae. Female predators found preys faster than male ones and larvae, 20.33 seconds for 120 preys. The application of M. sexmaculatus for biological control of B. tabaci will obviously decrease the use of synthetic insecticides
Pemanfaatan musuh alami dalam pengendalian hayati hama pada tanaman sayuran
No full textx, 68 hal.: ilus.; 22 c
KONSTRUKSI KALIMAT SINGKAT BAHASA SUNDA
No full textAbstrak. Penelitian ini bertujuan untuk mengetahui dan mendeskripsikan konstruksi kalimat singkat bahasa Sunda dalam majalah Manglé, yang dikaji dari segi struktur dan semantik. Dalam penelitian ini digunakan metode deskriptif. Data dikumpulkan dengan tehnik studi pustaka melalui instrumen kartu data. Untuk mengolah data digunakan teknik analisis unsur langsung. Hasil penelitian menemukan 706 kalimat singkat yang frekuensi pemakaiannya sebanyak 2028 kalimat. Ditemukan enam tipe kalimat singkat, yakni kalimat salam, kalimat seruan, kalimat panggilan, kalimat judul, kalimat motto, dan kalimat inkripsi. Kalimat singkat memiliki pola tertentu, yakni A : Kal Sal C + J + K; B : Kal Ser J + C; C : Kal Ser Kec Pang; D : Kal Jud J + U; E : Kal Mot FP/FS Koor; F : Kal Ins FB N + FB Mod. Kalimat singkat mengandung sapuluh maknai, yakni rasa syukur, selamat, serua ganti dan nama, rasa sakit, rasa marah, rasa menerima, kagét, berita, pedoman, dan cita-cit
UPAYA MENGEMBANGKAN KECERDASAN LOGIS MATEMATIS ANAK USIA 5-6 TAHUN MENGGUNAKAN PERMAINAN TRADISIONAL
Full text linkThis study aims to describe the traditional game that can develop mathematical logical intelligence of children aged 5-6 years. The types of traditional games applied in this study to develop mathematical logical intelligence of children aged 5-6 years are congklak and crank. The research method that will be used is descriptive quantitative, the process of collecting and extracting data in this study uses complementary methods of observation, interviews, and supporting documents. The population in this study were students in one of the Kank-kindergarten in Cimahi City with a sample of 49 children from class A and 48 students from class B, data were analyzed using SPSS related statistics to obtain a picture of the results of mathematical logical intelligence development in each type traditional game. The results of this study concluded that the data showed the development of mathematical logical intelligence of children aged 5-6 years using traditional congklak games had higher results in children in the development of mathematical logical intelligence compared to using traditional crank.Penelitian ini bertujuan mendeskripsikan permainan tradisional yang dapat mengembangkan kecerdasan logis matematis anak usia 5-6 tahun. Jenis permainan tradisional yang diterapkan pada penelitian ini untuk mengembangkan kecerdasan logis matematis anak usia 5-6 tahun adalah congklak dan engklek. Metode penelitian yang akan digunakan deskriptif kuantitatif, proses pengumpulan dan penggalian data dalam penelitian ini menggunakan metode yang saling melengkapi yaitu observasi, wawancara, dan dokumen pendukung. Populasi dalam penelitian ini adalah siswa di salah satu Taman Kank-kanak di Kota Cimahi dengan sampelnya yaitu 49 orang anak dari kelas A dan 48 orang siswa dari kelas B, data dianalisis menggunakan SPSS terkait statistik untuk memperoleh gambaran hasil perkembangan kecerdasan logis matematis pada setiap jenis permainan tradisional. Hasil penelitian ini memperoleh kesimpulan bahwa data menunjukan pengembangan kecerdasan logis matematis anak usia 5-6 tahun menggunakan permainan tradisonal congklak memiliki hasil yang lebih tinggi pada anak dalam pengembangan kecerdasan logis matematis dibandingkan menggunakan permainan tradisional engklek
Kompatibilitas Minyak Serai dengan Predator Menochilus sexmaculatus untuk Pengendalian Vektor Penyakit Virus Kuning
Full text linkPenggunaan insektisida kimia sintetis secara intensif di lapangan dapat mengurangi populasi musuh alami, sehingga mengakibatkan populasi hama meningkat. Bemisia tabaci merupakan salah satu hama penting pada tanaman cabai merah yang dapat menyebabkan kerusakan langsung dengan cara menghisap cairan tanaman dan tidak langsung menularkan penyakit virus kuning. Cara pengendalian yang ramah lingkungan merupakan faktor penting dalam menekan kehilangan yang diakibatkan oleh serangan B. tabaci. Penelitian bertujuan untuk mengetahui kompatibilitas insektisida nabati yang berasal dari minyak serai dengan predator Menochilus sexmaculatus dalam menekan populasi B. tabaci. Penelitian dilakukan di Laboratorium dan Rumah Kasa Balai Penelitian Tanaman Sayuran mulai bulan Juni sampai dengan Desember 2009. Penelitian menggunakan metode pencelupan (dipping method) untuk kutukebul, film kering (dry film), dan odor effect untuk predator M. sexmaculatus. Rancangan percobaan yang digunakan ialah acak kelompok terdiri atas enam perlakuan dan empat ulangan. Perlakuan yang digunakan ialah enam konsentrasi minyak serai yaitu 5.000, 4.000, 3.000, 2.000, 1.000, dan 0 ppm sebagai kontrol. Untuk menentukan nilai LC50 dan LT50 digunakan analisis Probit. Hasil penelitian menunjukkan bahwa aplikasi minyak serai pada konsentrasi 2.000-5.000 ppm efektif menekan populasi nimfa B. tabaci instar I dan II, sedangkan untuk instar III dan IV pada konsentrasi 3.000-5.000 ppm dengan nilai penekanan sebesar 92-98% bila dibandingkan dengan kontrol. Nilai LC50 untuk nimfa B. tabaci instar I-IV berturut-turut sebesar 1.266,48, 1.755,81, 2.305,46, dan 2.343,59 ppm. Pada konsentrasi 2.000 ppm, LT50 minyak serai untuk nimfa B. tabaci ialah sekitar 2,95 hari setelah perlakuan. Minyak serai yang aman untuk larva predator M. sexmaculatus ialah pada konsentrasi 1.000 ppm bila diaplikasikan secara kontak dan 1.000-2.000 ppm bila diaplikasikan sebagai odor effect. Minyak serai pada konsentrasi 1.000-5.000 ppm aman terhadap imago M. sexmaculatus. Konsentrasi 2.000 ppm minyak serai merupakan konsentrasi yang sesuai diaplikasikan sebagai insektisida alami untuk pengendalian B. tabaci, aman dan kompatibel dengan predator M. sexmaculatus. Berdasarkan hasil penelitian ini diketahui bahwa minyak serai dan M. sexmaculatus memiliki potensi dalam mengendalikan B. tabaci pada cabai.There is a tendency of diminishing the number of natural enemies caused by utilization of non-selective insecticides that lead to serious consequences for pest population dynamics. Bemisia tabaci is an extremely polyphagous pest that causes direct damage and can act as a viral vector on hot peppers causing yellow virus disease. The activity of natural enemies can be exploited by employing propers conservation and augmentation techniques. Natural enemies might play roles to control of B. tabaci on hot peppers. The study was conducted in the Laboratory and Screenhouse of IVEGRI from June to December 2009. The objective of this study was to determine compatibility of citronella oil with M. sexmaculatus to control B. tabaci. Dipping methods, dry film, and odor effect were used in this study. Randomized completely block design with six treatments and four replications was used in this study. The treatments were citronella oils at different consentration 5,000, 4,000, 3,000, 2,000, 1,000, and 0 ppm as a control and stages of B. tabaci (1st, 2nd, 3rd, and 4th instars) and M. sexmaculatus. Probit analysis was used to ditermine LC50 and LT50 value. The results indicated that citronella oils at concentration of 2,000-5,000 ppm was effective to control nymphs of B. tabaci at 1st and 2nd instar , while 3,000-5,000 ppm for 3rd and 4th instar. The first two nymphal stages were more susceptible to citronella oil compared to the third and fourth nymphal stage. LC50 value for first to fourth nymphal stage was 1,266.48; 1,755.81; 2,305.46, and 2,343.59 ppm respectively. The LT50 occurred at 2.95 days in all instar stages. Menochilus sexmaculatus predators were highly susceptible to the essential oil vapours and the selective toxicity ratio varied depending on the methods and stages. Citronella oil at 1,000-2,000 ppm was compatible with M. sexmaculatus larvae on odor effect and 1,000 ppm on dry film method. Menochilus sexmaculatus adult more tolerant to citronella oil compared to larvae stage at concentration 1,000-5,000 ppm. Concentration 2,000 ppm of citronella oil was the appropriate concentration applied as bioinsecticide for B. tabaci, safety and compatibility for M. sexmaculatus. Based on the study known citronella oil and M. sexmaculatus had potential to be incorporated in controlling B. tabaci on hot peppers
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