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All Journal Agrotrop : Journal on Agriculture Science Buletin Udayana Mengabdi Journal of Agricultural Science and Biotechnology E-Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Jurnal Entomologi Indonesia Journal of Sustainable Development Science Nandur
I KETUT SUMIARTHA
Program Studi Agroekoteknologi Fakultas Pertanian Universitas Udayana
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Economics, Econometrics & Finance Education Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice

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Uji Efektivitas Konsentrasi Minyak Atsiri Sereh Dapur (Cymbopogon Citratus (DC.) Stapf) terhadap Pertumbuhan Jamur Aspergillus Sp. secara In Vitro MARIA ULFA ELLA ELLA; KETUT SUMIARTHA SUMIARTHA; NI WAYAN SUNITI; I PUTU SUDIARTA; NYOMAN SEMADI ANTARA
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.2, No.1, Januari 2013
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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ABSTRACT In Vitro Study of the effectiveness of Essential Oil Extracted from Lemongrass (Cymbopogon citratus) to Aspergillus Sp. Study on determining of the effectivenes of essential oil extracted from lemongrass (Cymbopogon citratus) in order to suppressing the growth of fruit rot fungi (Asoergillus sp.) and also to determining the minimum concentration that able to inhibit colony growth and spore formation of the Aspergillus sp. in vitro, was conducted in Laboratory of Plant Diseases from June into November 2012. The result showed that the fungi were isolated from rot fruit mango has similarities with the fungi Aspergillus sp. The characteristic of Aspergillus has cepted hyphae, growth appear colonies, conidiophores uncepted and stand up, the tip of conidiophore is swollen and produce vesicle form, the surface of vesicle is covered by fialid that usually simple and colored or colorless, fialid produced conidia which were form green, brown or black chain. Essential oil of lemongrass have an antifungal activity and it was found effective to inhibit growth of the fruit rot fungi Aspergillus sp. on PDA. The inhibition zone of the lemongrass essential oil against Aspergillus sp. were 85 mm which is include a very strong category. Effective concentration of essential oil of lemongrass to inhibit the growth of Aspergillus sp. are 0,6% - 1%. The persentase of inhibition in this concentration reached to 100%. On the other hand, the control treatment, 0,2%, and 0,4% concentration were 0%, 0%, and 28,53%, respectively. Minimum concentration which is capable to inhibit the formation of spores and growth of fungi colonies were 0,2% and 0,3% concentration. The compounds suspected as antifungal against Aspergillus sp. were ?-citral (geraniol) and ?-citral (neral). Keywords: Lemongrass (Cymbopogon citratus), essential oil, antifungi, Aspergillus sp.
Uji Galur Dan Varietas Tanaman Cabai terhadap Serangan Hama Lalat Buah (Bactrocera dorsalis Complex) di Dusun Sandan, Desa Bangli, Kecamatan Baturiti, Kabupaten Tabanan NI MADE DWI ANTARI; I KETUT SUMIARTHA; NI NENGAH DARMIATI; I PUTU SUDIARTA
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.3, No.2, April 2014
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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ABSTRACT Cultivars and Varieties Test of Chili Plants Against Fruit Flies (Bactrocera dorsalis Complex) at Sandan, Bangli Village, Baturiti District Tabanan Regency The experiment was conducted at Sandan, Bangli Village, Baturiti District Tabanan Regency, in February to June 2012. In this study all cultivars and varieties of long chilies were cultivated with treatments such as in the field. The purpose of this study was to determine the cultivars and varieties of chilies plants that resistant to fruit fly (Batrocera dorsalis complex),  to determine the number of branches and plant height were associated with yields as well as to determine the characteristics that influence the percentage of fruit fly infestation on fruit and results obtained for each long chilies plants. This study used a randomized block design (RBD) with three replications. The result revealed that the higest fruit flies infestation on AVPP 1004 while the lowest fruit flies infestations on local Kencana in 114 days after transplanting. High and low levels of infestation influenced by the environmental factor and characteristics of the fruit. The fruit characteristic of AVPP 1004 have thicker flesh than the local Kencana varieties, it can be seen from the fruit weight of cultivar AVPP 1004 (20.46 g) and local Kencana varieties (3.70 g). Keyword: Bactrocera dorsalis complex, long chili cultivars, the level of infestation.
Utilization of Essential Oil of Lemongrass (Cymbopogon citratus) as a Bio-pesticide to Control Plutella xylostella (Lepidoptera: Plutellidae) I PUTU SUDIARTA; KETUT SUMIARTHA; NYOMAN SEMADI ANTARA
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.2, No.1, Januari 2013
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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ABSTRAK Pemanfaatan Minyak Atsiri Sereh Dapur (Cymbopogon citratus) sebagai Biopestisida untuk Mengendalikan Plutella xylostella (Lepidoptera: Plutellidae) Informasi tentang efikasi dan pitotoksisitas dari minyak atsiri sereh dapur sangat diperlukan dalam memanfaatkan minyaknya untuk mengendalikan Plutella xylostella. Penelitian efikasi minyak sereh di laboratorium sudah dilakukan sebagai penelitian pendahuluan sebelum melakukan penelitian di lapangan. Penelitian lapangan yang bertujuan untuk mengetahui efikasi dan pitotoksisitas minyak sereh dapur dilakukan di Desa Pancasari, Kecamatan Sukasada, Kabupaten Buleleng (1200 m dpl). Hasil penelitian menunjukan, minyak atsiri sereh dapur pada konsentrasi 10 % menimbulkan gejala terbakar pada daun kubis. Sedangkan pada konsentrasi 2.5 % dan 5 % menunjukan gejala perubahan warna dari hijau menjadi ungu. Tetapi pada konsentrasi rendah 1 %, 0.5 %, dan 0.1 % minyak sereh tidak memiliki pengaruh pitotoksik terhadap tanaman kubis. Pengaruh minyak sereh terhadap populasi P. xylostella menunjukan tidak beda nyata pada konsentrasi rendah. Tetapi pada umumnya dapat menekan populasi P. xylostella dibandingkan dengan kontrol. Berdasarkan penelitian tersebut maka minyak sereh dapur dapat dimanfaatkan sebagai pengendali P. xylostella pada konsentrasi rendah yaitu dibawah konsentrasi 1 %, karena pada konsentrasi tersebut minyak sereh tidak bersifat pitotoksik dan mampu menekan pupulasi P. xylostella di laboratorium maupun di lapangan. Kata kunci: minyak atsiri sereh dapur, Plutella xylostella, efikasi, pitotosisitas
Identifikasi Lalat Buah (Diptera: Tephritidae) serta Serangannya terhadap Beberapa Galur dan Varietas Tanaman Cabai ( Capsicum annum l.) Di Desa Pancasari, Sukasada, Buleleng I MADE YESTA SANTIATMA; I KETUT SUMIARTHA; I WAYAN SUSILA; I PUTU SUDIARTA; MADE SUPARTHA UTAMA; JOKO MARIYONO; GREG LUTHER
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.5, No.1, Januari 2016
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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ABSTRACT Identification of Fruit Flies (Diptera: Tephritidae) and It’s Damage Against to Some Lines and Varieties of Chili Plants (Capsicum annum L.) In  Pancasari Village, Sukasada District, Buleleng Regency The research was conducted in the Field and in the Laboratory. Studies conducted in the laboratory of integrated pest management Faculty of Agriculture, Udayana University, concerning identification of fruit fly in the laboratory of Agricultural Quarantine Ist Class, Denpasar. The field research was conducted in the Pancasari village, Sukasada district, Buleleng regency, which was implemented in September to December 2014. The purpose of this study to determine the species of fruit flies that damage some lines and varieties of chili plants tested, to determine the percentage of fruit fly damage in some lines and varieties of chili plants, and to determine the yield of the each lines and varieties of chili plants were tested. This study used a randomized block design (RBD) with eighteen treatments and three replications. The results show  that the damage percentage of the highest fruit fly pest was found in line AVPP 1003-B with the percentage of 66.49%, while the  lowest line percentage was found in Kencana variety with a percentage of 23.82%. The fruit fly species found in the test lines and  varieties of chili plants (Capsicum annum L.) is Bactrocera carambolae and B. papayae. The highest yields are found in line AVPP 0207 with an average yields of 202.99 grams / plant and the lowest was found in AVPP lines 0906 with an average of 66.64 grams  / plants.   Keywords: chili, the percentage of damage, Bactrocera carambolae, Bactrocera papayae.
Efikasi Pestisida Nabati Minyak Atsiri Tanaman Tropis terhadap Mortalitas Ulat Bulu Gempinis I GEDE SILA ADNYANA; KETUT SUMIARTHA; I PUTU SUDIARTA
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol. 1, No. 1, Juli 2012
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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ABSTRACT Efficacy of Essential Oils Extracted from Tropical Plants to Hairy Caterpillar Efficacy of some essential oils extracted from tropical plant to hairy caterpillar was conducted in order to find out the method to control population of hairy caterpillar which were increased drastically in 2010 to 2011 in Indonesia. The insect were reported to attack some plants such as: wooden plants; horticulture crops, especially, mango trees and some ornamental plants. Although, these caterpillar have not been found to attack food crops. These insects arising some problems: scared as well as skin etches, etc., especially when these insects entering the communities residence. To control the caterpillar, recently, peoples used chemical insecticide, however the impact of chemicals insecticide is dangerous to human being, livestock, and environmental. Therefore to minimizing those problems, the control methods should be environmental-friendly and safe against human being. One of those methods is utilizing the botanical pesticide which is extracted from tropical plants. Three of topical plants such as: citronellagrass (Cymbopogon nardus), lemongrass (Cymbopogon citratus), neem (Azadirachta indica), were done in this experiment to utilize it as botanical pesticide. The experiment result shown at the concentration 10%, all of the essential oils are effective to kill the caterpillar (90-100%). Therefore the examinations of low concentrations of essential oils were conducted (5, 2, and 1%). The result of 1% concentration of lemongrass was found most effective to kill caterpillar (98%). The examinations for lemongrass under 1% concentration (0.75, 0.50, and 0.25%) were continued. From those examinations, under concentration of 0.50 % the caterpillar was killed 90%, while the concentration of 0.25% was not effective (50%). Keywords: hairy caterpillar, essential oil
Pengaruh Serangan Penggerek Batang Padi terhadap Hasil Panen Tanaman Padi (Oryza Sativa L.) Di Subak Cemagi Let, Desa Cemagi, Kecamatan Mengwi, Kabupaten Badung MOCH BINTANG RAMADHAN; I PUTU SUDIARTA; I NYOMAN WIJAYA; I KETUT SUMIARTHA
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.9, No.2, April 2020
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Effect of the Attack of Rice Steam Borer to Rice Yields (Oryza sativa L.) in Subak Cemagi Let, Cemagi Village, Mengwi District, Badung Regency. Rice stem borer is one of the pests that can cause a decrease in rice yield. In Indonesia there are four types of rice stem borer namely S. incertulas, S. innotata, C. suppressalis and S. inferens. This study aims to determine the effect of rice stem borer attack on rice crop yields. The study was conducted for three months in February to April 2019 located in Subak Cemagi Let, Cemagi Village, Mengwi District, Badung Regency, using a diagonal sampling method, the effect of rice stem borer attack on yield reduction. Observations were made on the percentage of rice stem borer infestation, rice stem borer type, wet weight of rice plants. Observation test shows that rice stem borer attack changes every week and affects the rice crop yields.
Pengaruh Ketinggian Tempat, Mulsa dan Jumlah Bibit Terhadap Pertumbuhan dan Rendemen Minyak Sereh Dapur (Cymbopogon Citratus) I WAYAN HENDRA KUSUMAYADI KUSUMAYADI; I MADE SUKEWIJAYA SUKEWIJAYA; I KETUT SUMIARTHA; NYOMAN SEMADI ANTARA
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.2, No.1, Januari 2013
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Efektivitas Insektisida Metomil 40% Terhadap Serangan Ulat Grayak (Spodoptera Exigua Humber) pada Tanaman Bawang Merah (Allium Cepa L.) di Desa Songan Kintamani Bangli I MADE REDI DWIJAYA HENDRA; I KETUT SUMIARTHA; I WAYAN SUSILA
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.7, No.2, April 2018
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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The Effectiveness of Metomyl Insecticide 40% to Armyworm (Spodoptera exigua Hubner) On Red Onion Plant (Allium cepa L.) in Songan Village District of Kintamani Bangli Regency The Research of Metomyl Insecticide 40% to damage caused by armyworm (Spodoptera exigua Hubner) On Red Onion Plant (Allium cepa L.) in Songan Village District of Kintamani Bangli Regency was conducted in order to determine the percentage of damage of armyworm (Spodoptera exigua) and the relationship between the pareentage of damage and production after treated by metomil insecticide 40%. This onion tuber harvest after treatment with insecticide with 40% active metomyl.this research was done from 2016, November until 2017 January. Randomized block design was used in this studay with 5 treatments and replicated 5 times. The results showed that the perceutage of demage caused by Spodoptera exigua on onion plant treated by metomiyl insecticide 40% were significant different compare to control. The highest percertage of damage was found in control 13.5% and the lowest percentage of damage was found in treated consentration of 2,00 g/l, was 1,99%, both was observed in 49 days after transplanting, the production of wet tuber in average was found 1,3 kg in treatment of 2g/l and 1,1kg in countred, the production was calculated by avrage of 10 plants. The relationship between percentage of damage and production are very weak to strong unsignificant and reversely propotional.
Pemantauan Populasi Imago Spodoptera litura dan Helicoverpa armigera Menggunakan Perangkap Seks Feromon GUSTI NGURAH GEDE DHARMA PUTRA PUTRA; I PUTU SUDIARTA; I PUTU DHARMA; KETUT SUMIARTHA; R. SRINIVASAN
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.2, No.1, Januari 2013
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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ABSTRACT Monitoring of Imago of Spodoptera litura and Helicoverpa armigera Using Sex Pheromone Trap The utilization of sex pheromone to control insect pest is one of advance technology. The sex pheromone is one method to control insect pests for support food security. In other to know the ability of sex pheromone to trap insect the monitoring of insect using sex pheromone is needed. The lure of sex pheromone, glue, and box trap were imported from AVRDC-The World Vegetable Center. Sex pheromone trap is putted on the vegetable area in Bali, the locations including Sandan, Kembang Merta, Candi Kuning (Tabanan Regence) and Pancasari (Buleleng Regence). On each location trap was placed with two replications. Data collection was conducted every week, on 3rd week observation the imago/moth population is completely reduce. Therefore the trap was replaced for the new trap. That mean the observation was conducted 3 times per experiment (Observation 1,2,3). In this case the experiments were done 2 times (Experiment 1 and 2). The identification of imago was base on the morphological method. The imago was accounted for data collection. The decrease of population of Spodoptera litura and Helicoverpa armigera after 3 week observation is possible caused by the ability of pheromone active ingredient is also decrease. The distribution of imago S. litura and H. armigera are same for all locations. However the total population of S. litura and H. armigera is different. The population of S. litura was very high in all locations around 51-107. However the population of H. armigera was generally low except in Sandan Tabanan (70). In Pacasari the population of H. armigera was lowest around 14-15. The differentiation of imago S. litura and H. armigera were possible influenced by the host plant, altitude and also climate conditions. Key worlds: sex pheromone, Spodotera litura, Helicoverpa armigira
Pengaruh Abamektin 18 G/L terhadap Kelimpahan Populasi dan Tingkat Serangan Thrips parvispinus Karny (Thysanoptera: Thripidae) pada Tanaman Cabai Besar WAYAN AGUS ANDI SULHAN; DWI WIDANINGSIH; I KETUT SUMIARTHA
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.6, No.4, Oktober 2017
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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The Influence of Abamectin 18 g/l to Population Abundance and Percentage of Damage of Thirps parvispinus Karny (Thysanoptera : Thripidae) on Long Chili Papper The research was done in Kerta Village, distircts of Payangan and Gianyar Regency from December, 2016 – February 2017. This research was conducted in order to investigate the effect of 18 g/l active ingredient of Abamektin to population abundance and percentage of damage of Thrips parvispinus Karny and also crop production of long chili papper. This research used Randomized Block Design (RBD) with 5 levels of treatment and replicated five times. The result obtained from This research about The percentage of damage were moderate catagory, at 44 Days After Treatment (DAT) the highest percentage was obtained in control (38,00%) and 23,20% in treatment 1,00 ml/l. The damage percentage was affected by population abundance of T. parvispinus. The population abundance was found significantly difference between control and 1,00 ml/l treatment whics were, 11 and 4, respectively. The highest of population abundance in 51 Days After Transplanting (DAT) was 15. The plant production was also obtained significantly difference between control and treatment 1,00 ml/l were 205 g and 270 g, respectively.
Co-Authors Anak Agung Ayu Agung Sri Sunari CRISTINE LAURINE SIMANJUNTAK Dewa Gede Wiryangga Selangga DWI WIDANINGSIH EKA BHUWANA BONAULI BARITA GREG LUTHER GREGORY C. LUTHER Gusti Ngurah Alit Susanta Wirya GUSTI NGURAH GEDE DHARMA PUTRA PUTRA HENDRA DWI PRASETYO I DEWA MADE PUTRA WIRATAMA I DEWA PUTU SINGARSA I GEDE SILA ADNYANA I GUSTI ALIT GUNADI I Made Mega Adnyana I MADE REDI DWIJAYA HENDRA I Made Sukewijaya I MADE SUPARTHA UTAMA I MADE SUTIAWAN I MADE YESTA SANTIATMA I NYOMAN DARMA YASA I NYOMAN WIJAYA I PUTU BAWA ARIYANTA I PUTU DHARMA I Putu Sudiarta I PUTU WIRYA SUPUTRA I Wayan Andi Sumartayasa I Wayan Dirgayana I WAYAN HENDRA KUSUMAYADI KUSUMAYADI I WAYAN RUSMAN I Wayan Supartha I Wayan Susila JOKO MARIYONO JOKO MARIYONO KETUT AYU YULIADHI KETUT SIMPATI Luciana Delavega MADE MIKA MEGA ASTUTHI MADE SRITAMIN MARIA ULFA ELLA ELLA MOCH BINTANG RAMADHAN NI KADEK NINA ARI SUCI NI LUH WAHYU SUTARINI, NI LUH WAHYU NI MADE DWI ANTARI NI NENGAH DARMIATI NI WAYAN SUNITI NYOMAN SEMADI ANTARA R. SRINIVASAN RAMADHAN, MOCH BINTANG WAYAN ADIARTAYASA WAYAN AGUS ANDI SULHAN