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All Journal Agrotrop : Journal on Agriculture Science International Journal of Biosciences and Biotechnology Buletin Udayana Mengabdi E-Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Jurnal Entomologi Indonesia Nandur

WAYAN ADIARTAYASA

Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

Author-ID : 219513

Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Education Environmental Science

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Kerusakan dan Kerugian Akibat Serangan Lalat Buah (Diptera: Tephritidae) pada Pertanaman Jeruk I NYOMAN WIJAYA; WAYAN ADIARTAYASA; I GEDE BAGUS DWIPANANDA
Agrotrop : Journal on Agriculture Science Vol 8 No 1 (2018)
Publisher : Fakultas Pertanian Universitas Udayana

Damage and Product Losses by Fruit Flies Bactrocera dorsalis Complex (Diptera: Tephritidae) at Citrus Cultivation. This research knows the damage and nominal loss caused by fruit flies attack on citrus cultivation. The study took place from May to September 2016, from fruit to harvest, fruit fly observations were performed using relative methods. The results showed the damage of fruit at citrus cultivation in place of research have category relative moderate until heavy. Of the 10 plant samples observed 3 damaged plants reached 51%. Then 7 other plant samples suffered damage in the medium category. But the average damage reached 44%, this is a fruit fly is categorized as a very harmful pest. Nominal losses in 10 sample plants observed with the number of fruit fell as much as 943 fruit and fruit weight reached 157.17 kg obtained nominal loss of Rp. 471,500. Based on the data obtained hectar loss of Rp.29.468.750. Fruit fly attacks have increased along with the condition of citrus fruits that begin to experience physiological development so that the loss of the number of fruit fall that resulted in economic losses.

Serangan Penggerek Batang Padi dan Peran Musuh Alami dalam Mengendalikan Populasinya pada Persawahan Tanam Serentak dan Tidak Serentak WAYAN ADIARTAYASA; I NYOMAN WIJAYA
Agrotrop : Journal on Agriculture Science Vol 6 No 1 (2016)
Publisher : Fakultas Pertanian Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (198.784 KB)

Paddy Rice Stemborer Attact and The Role of Parasitoid in Control That Population atSimultaneous and Stagered Ricefield. The arrangement of suistable agriculture in Baliwhich appropriate with Bali governments mission : Bali Clean and Green Go to Organic. Theconcept of modern agriculture look like contradiction with the aspects suistainableagriculture. The aspect of cultivation have been done by local agriculture community in Balicall it Subak for many years, but the attack of yellow rice borer still happen, wich adversefarmers side, persist. The efforts control wich has been done, still rely on pesticides, becauseit can give quick effect, but it is not appropriate for suistainable agriculture. The othersolution to solve that issues with the integrated pest management (IPM) as the maincomponent of with is the role parasitoids. The experiment was carried out at simultaneousplanting area (Subak Sidakarya, Denpasar Selatan District) and at staggered planting area(Subak Buaji, Denpasar Timur District). The result of this experiment showed that damageintensity of rice stemborer at simmultaneus planting was lower than at staggered plantingarea. There are four species stemborer at simultaneous planting area and at staggered plantingareas, namely Scirpophaga incertulas, Sesamia inferens, Chilo suppressalis, and Chilopolychrysus. Three kinds of egg parasitoids were found to decrease the population of ricedstemborer. They were Tetrastichus schoenobii, Telenomus rowani and Trichogrammajaponicum.

Uji Efektivitas Beberapa Konsentrasi Ekstrak Daun Kirinyuh (Chromolaena odorata L.) Terhadap Perkembangan Ulat Krop Kubis (Crocidolomia pavonana F.) I NYOMAN WIJAYA; I GEDE PUTU WIRAWAN; WAYAN ADIARTAYASA
Agrotrop : Journal on Agriculture Science Vol 8 No 1 (2018)
Publisher : Fakultas Pertanian Universitas Udayana

Effectiveness Test of Several Concentrations of Kirinyuh Leaf Extract (Chromolaena odorata L.) Toward Development of Cabbage Crop Caterpillar (Crocidolomia pavonana F.). This research was conducted at the Laboratory of Plant Pests and Diseases of the Faculty of Agriculture, Udayana University from April 2018 to August 2018 to test the extract of kirinyuh leaves (Chromolaena odorata) on the development of biology of cabbage crop caterpillar (Crocidolomia pavonana). The completely randomized design (CRD) was used in this study, with four types of treatment of leaf extract concentration of 10%, 20%, 30%, 40%, and control. Each treatment was repeated 10 times. Observations were completed every day of the larval stage until the larvae do not carry out any activity anymore (dead), or until they become imago. The results showed that (1) the leaf extract of C. odorata plant which was used as research material had the potential to suppress the biological development of C. pavonanadi larvae in the laboratory, (2) the application of leaf extract concentration of 10% and 20% had an influence on the development of larvae which had developed slow compared to concentrations of 30% and 40%, where larvae experience rapid development of only 9 observations and (3) the most effective test leaf extract treatment was the treatment of leaf extracts of C. odorata concentrations of 40% and 30% followed by leaf extract concentrations of 20% and 10%.

Komposisi Spesies Penggerek Batang Padi dan Parasitoid Telurnya pada Ketinggian Tempat yang Berbeda I NYOMAN WIJAYA; WAYAN ADIARTAYASA; KETUT AYU YULIADHI
Agrotrop : Journal on Agriculture Science Vol 11 No 1 (2021)
Publisher : Fakultas Pertanian Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/AJoAS.2021.v11.i01.p01

Composition of Rice Stem Borer Species and Their Egg Parasitoids at Different Altitudes. Rice stem borer is one of the main pest of rice plants that always percolating and attack plants in the field. The pests can result in damage to plants and lost of the grain from season to season. The aim of this research is to know composition and dominance rice stem borer species and role of their eggs parasitoid at an altitude of different places. Research is done by survey based on the height of different altitude in rice plants two weeks after cropping up until eleven weeks after planting. Research conducted from April until August 2019 in rice field that belonging to farmers at Subak Cemagi Let, Cemagi Village and Subak Teba, Mengwi village, Badung regency, Bali province. Subak Cemagi Let are at an altitude of 15 meters above sea level whereas Subak Teba are at an altitude of 300 meters above sea level. Identification of Rice stem borer larvae and their eggs parasitoid done in Pest Laboratory, Agriculture Faculty of Udayana University. Found three species rice stem borer in the height 15 mdpl namely Scirpophaga incertulas; Sesamia inferens dan Chilo suppressalis, whereas in the height 300 mdpl found four species namely Scirpophaga incertulas, Sesamia inferens, Chilo suppressalis, dan Chilo polychrysus. S. incertulas was the most dominant at the two different altitude. Three species of eggs parasitoid that have role to suppress the development of rice stem borer at the different altitude namely Tetrastichus schoenobii, Telenomus rowani dan Trichogramma japonicum. T. schoenobii was the most dominant to suppress rice stem borer populations.

Dinamika Populasi Diaphorina citri Kuwayama (Homoptera: Psyllidae) dan Deteksi CVPD dengan Teknik PCR I NYOMAN WIJAYA; WAYAN ADIARTAYASA; MADE SRITAMIN; KETUT AYU YULIADHI
Jurnal Entomologi Indonesia Vol 7 No 2 (2010): September
Publisher : Perhimpunan Entomologi Indonesia

The research was conducted in the field of Taro village Gianyar regency and Katung village Bangli regency and at the Laboratory of Biotechnology Faculty of Agricultural Udayana University. The purpose of the research were to investigate population dynamic of Diaphorina citri Kuwayama and other insects that were assosiated with citrus cv. siam; and molecular detection of CVPD patogen in its vector, other phytophagous insects on citrus cv.siam and kemuning [Murraya paniculata (L.) Jack.] The result of this study showed that in six month period there was one peak of D. citri population which was associated with the flushing period of citrus at Taro as well Katung villages. The peak of D. citri population of Taro village was higher than that of Katung village. Two species of parasitoids and four spesies of predators were found in the field and may contribute in the suppression of D. citri population. The parasitoids identified were Tamarixia radiata Wat. and Diaphorencyrtus alligharensi Shaffe, whereas the predators were Curinus coeruleus Mulsant, Phiddipus sp., Menochilus sexmaculatus Fabricius and Oxyopes javanus Thorell. T. radiata has been proven to be an effective nymph parasitoid that could suppress the population development of D. citri in citrus orchads. The research revealed that kemuning could serve as a source of infection because it is also a host of CVPD disease as well as of D. citri. Toxoptera citricidus Kirkaldy and Maleuterpes dentipes Hell. were not proven to contain CVPD disease.

Isolasi Bakteri Selulolitik dari Buah Kopi Robusta (Coffea canephora) dan Uji Kemampuan Degradasi pada Buah Kopi Merlyna Rosalia; Wayan Adiartayasa; I Gede Putu Wirawan
Nandur Vol 1 No 1 (2021)
Publisher : Fakultas Pertanian, Universitas Udayana

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

Coffee fruit contains high cellulose and lignin. Cellulose is the most abundant polysaccharide found in plants, cellulose in nature forms crystals so that cellulose is difficult to degrade. Cellulose can be broken down using cellulase enzymes produced by microorganisms. One of the microorganisms capable of producing cellulase enzymes which are used to hydrolyze cellulose into simpler products, namely glucose, is cellulolytic bacteria. The purpose of this study was to identify bacterial isolates that ferment in coffee cherries. The isolation results obtained 97 bacterial colonies that grew, based on observations of color, shape, edges, and surface, they could be grouped into four groups of bacterial isolates named M1, M2, M3, and M4 bacterial isolates, with each cellulolytic index (IS) of 3,00; 0,75; 2,00 and 3,00. The results of the gram stain test obtained one gram-negative bacterial isolate (M2 rod-shaped) and three gram-positive bacterial isolates (M1 in the form of a focus, M3 and M4 in the form of a rod). Bacterial isolates M1 and M3 degraded the earliest coffee cherries with an average of 2.66 days after inoculation and no later than 6 day after inoculation in M2M4 and M3M4 bacterial isolates. The ability to degrade bacterial isolates in coffee cherries was obtained 2 - 5.34 days faster than the control.

Co-Authors Abd. Rasyid Syamsuri DIMINDA ELA SRI ERTINA BR GINTING Evy Prima FADEL ALKAHFI GUSTI AYU KOMANG CANDRA PARWATI GUSTI PUTU DINTYA PUTRA HERLINDAH CHOIRI I G. N. Bagus I G. Ngurah Bagus I GEDE BAGUS DWIPANANDA I Gede Ketut Susrama I GEDE PUTU WIRAWAN I Gusti Ngurah Bagus I K. Simpati I KADEK PURNAWIRAWAN PUTRA I Ketut Siadi I Ketut Suada I KETUT SUMIARTHA I KOMANG JULIARTA I M. Sudarma I Made Mega Adnyana I N. Wijaya I N. WIJAYA I NYOMAN WIJAYA I Putu Anom I WAYAN SUAMBA I. G. N Bagus I. N. Wijaya I.G.N. Bagus I.M.M. Adnyana I.N. Wijaya IKA NURHAYATI KATARINA IKA NOVIANITA KETUT AYU YULIADHI KETUT SIMPATI Ketut Srie Marhaeni Julyasih Khamdan Khalimi M Sudarma M. Puspawati MADE SRITAMIN MADE SUDANA MAHARDHIKA DWI PUTRA WIJAYA Merlyna Rosalia NI MADE ADHYA NIDIDHYA SANI NI NENGAH DARMIATI NI PUTU SWARI MEITAYANI NI WAYAN PUSPARINI DHARMAPUTRI RIDA MELANI Romulia Trielva Apriliani Sasadara, Maria Malida Vernandes WHISNU IDA BAGUS Wijaya I N. Yundari, Yundari

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