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All Journal HAYATI Journal of Biosciences Agrotrop : Journal on Agriculture Science International Journal of Biosciences and Biotechnology Journal of Agricultural Science and Biotechnology E-Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Jurnal Perlindungan Tanaman Indonesia Agrica: Journal of Sustainable Dryland Agriculture
I Wayan Supartha
Department Of Agroecotechnology, Faculty Of Agriculture, Udayana University, Indonesia
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemistry Earth & Planetary Sciences Environmental Science

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Kelimpahan Populasi dan Tingkat Serangan Kutu Daun (Mysuz persicae Sulzer ) (Homoptera: Aphididae) pada Tanaman Cabai Merah (Capsicum annuum L.) I WAYAN EKA KARYA UTAMA; A.A.A.A SRI SUNARI; I WAYAN SUPARTHA
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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Abstract

Population Abundance and Level of Leaf Flea Attack (Mysuz perscae SULZER) (Homoptera: Aphididae) on Red Chili (Capsicum annuum L.) Red Chili is one of the mainstay commodities in Bali Province which become the source of income of farmers and foreign exchange of state in agriculture sector of this plant lot cultivated in indonesian both in lowland and in plateau, one of goal in cultivation business is pest aphid (Myzus persicae Sulzer). This research was conducted to find out the invasion pattern, population abundance, percentage of attack and population relation with production. The study was conducted from December 2016 to February 2017, the study was conducted in the Sedang Village( 120 m dpl), Kerta Village (573 m dpl), Sukawati Village (90 m dpl) and Keramas Village (81 m dpl) of the Bali Provinces.The results showed that for aphid invasion had started while colonization had started at week 3 after planting. The lowest population abundance of M. persicae is found in Keramas village and the highest is found in Sukawati. As for the lowest percentage of attacks occurred in the village of Keramas and highest in Sukawati Village. So production has a negative relationship with the population of M. persicae with M.persicae populations, the higher the M. persicae population the lower the chili production.
Invasi dan Tingkat Serangan Ulat Bawang (Spodoptera exigua Hubner) pada Dua Kultivar Tanaman Bawang Merah di Desa Songan, Kecamatan Kintamani, Kabupaten Bangli DICKY MARSADI; I WAYAN SUPARTHA; A.A.A.A. SRI SUNARI
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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Abstract

Invasion and Attack level of Beet Armyworm (Spodoptera exigua Hubner) on Two Cultivars of Onion in Songan Village, Kintamani, Regency of Bangli This study was aims to determine the invasion and attack level of beet armyworm (S. exigua) on two cultivars of onion. The study was conducted 940 m above sea level at Songan Village, Kintamani, Regency of Bangli from December 2016 to February 2017. This study implemented surveying method by taking 10 samples plant per plot with 5 replications. Sampling was conducted by using U-sistematics patern. The results showed that the invasion occurred during the onion crop was 7 days after planting (dap) and experienced a peak in old plants 17 dap. There was difference larvae of S. exigua population on both varieties of onion crop from the initial observation until the end of the observation. The highest larval populations present in Batu Ijo variety in the amount of 2.4 larvae per clump while variety of Bima Brebes was 1.3 larvae per clump. The attacking level of Bima Brebes variety was 4,86% lower compared on Batu Ijo which is 9,95%. Both onion varieties show difference in productions where Batu Ijo variety has 112,2 grams per clump while Bima Brebes 125,8 grams per clump.
Struktur Populasi Keong Murbei Pomacea Spp. (Mesogastropoda : Ampullariidae) Pada Tanaman Padi Sawah di Kabupaten Jembrana Provinsi Bali I PUTU DEDI ADNYANA; I WAYAN SUPARTHA; I MADE MEGA ADNYANA
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.7, No.4, Oktober 2018
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Abstract

Population Structure of Murbei Conch Pomacea spp. (Mesogastropoda: Ampullariidae) On Paddy Rice Field in Jembrana District of Bali Province The purpose of this study is to determine the population structure of mulberry snails. This research was carried out in October 2017 - March 2018. The method used in this study was a survey method with a diagonal model. Biological parameters are carried out by randomly taking egg groups and maintaining them in the Integrated Pest and Disease Laboratory, Faculty of Agriculture, Udayana University. The results showed that the population density of P. canalicuta in the group of eggs and conch with a size (0.5-1cm), (> 1-2.5cm), (> 2.5-4cm) higher in Subak Pangyangan and lower in Subak Tegalwani. Distribution of P. canaliculata in Tegal Wani Subak and Pangyagan Subak has a groups pattern. The age structure of P. canaliculata in Subak Tegal Wani and Subak Pangyangan from egg groups aged 7-14 days, (0.5-1 cm) aged 15-25 days, (> 1 - 2.5 cm) aged 26-49 days, (> 2.5 - 4 cm) 50-60 days old. The highest peak of the population development of P. canalicuta in Subak Tegal Wani occurs at the age of the plant 8 weeks after planting, while the highest peak in Subak Pangyangan occurs at the age of the plant 6 weeks after planting.
Kelimpahan Populasi dan Serangan Penggerek Batang Padi pada Tanaman Padi di Kabupaten Tabanan LUH TINA ARYANTINI; I WAYAN SUPARTHA; I NYOMAN WIJAYA
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.4, No.3, Juli 2015
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Abstract

ABSTRACT Population Abundance and Rice Stem Borer Attack on Rice in Tabanan Regency Tabanan Regency is rice production center in Bali Province. In terms of rice production in 2009 Tabanan Regency can produce 242.000 tons of grain per year, still rice production in the field has many obstacles, one of which is the rice stem borer can attack plants in the vegetative phase and the generative phase. It is necessary for the proper control measures, through an ecological approach and monitoring system to control rice stem borer in the field. The pattern of population growth which include diversity and population dynamics of the rice stem borer in the field, it is helpful for decision-making in determining control strategies appropriate to the circumstances on the ground pests. Found four species of rice stem winches in Tabanan Regency. The fourth species is Scirpophaga incertulas Walker, Sesamia inferens Walker, Chilo suppressalis Walker, and Chilo polychrysus Meyrick. S. incertulas is the dominant species found at each altitude. Rice stem borer species diversity is low <1.5, The value of the index of similarity between the study site reached a value of 86 % and 100 % . The structure of the rice stem borer populations between egg , larva , pupa and imago fluctuate every stage of plant development and reached its peak at the age of  rice 2 Weeks after planting egg stage , 4 Weeks after planting on larval and imago , 5 Weeks after planting at the pupa stage. The highest population abundance indicated S. incertulas at an altitude <250 (0-250) masl (meters above sea level), with the highest attack percentage at a height <250 (0-250) masl.   Keywords: Rice stem borer, species diversity, abundance, percentage.
Jenis Lalat Buah Bactrocera spp. (Diptera : Tephritidae) yang Menyerang Pertanaman Jeruk di Kabupaten Gianyar dan Bangli MADE DWIKA WIRATAMA; I WAYAN SUSILA; I WAYAN SUPARTHA
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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Abstract

The Fruit Flies Species (Bactrocera spp.) attacking Citrus Orchard in Gianyar and Bangli Regency of Bali Field research on species composition and attacks of fruit flies was done on citrus orchard located in Gianyar and Bangli Regency of Bali from May up to August 2016. The research aimed to identify and analyze of species composition and attacks of fruit flies attacking the fruit in the field. The research using survey method by collecting of attacked-fruits, purposively on citrus orchard in the field. Adults of fruit flies were identified by identification key of Drew and Hancock (1994). The results indicated that there were two species found on the citrus orchard namely Bactrocera carambolae and Bactrocera papayae The composition of both species were 61 % for B. carambolae and 39 % for B. papayae. B. carambolae was dominant at an altitude of 850 meters above sea level (61.29 % ; 19 adults), 1100 meters above sea level (62.22 % ; 84 adults) and 1200 meters above sea level (68.67%; 57 adults), while B. papayae was dominant at an altitude of 750 meters above sea level (59.32 % ; 35 adults). B. carambolae was also dominant on the variety of Siam, Keprok Selayar and Keprok Batu 55. The affecting factors on the population abundance of fruit fly were affected by the length of cultivation and the number of citrus plant population in each elevation. The average number of adults emerged from an orange fruit was 3 adults while the highest appearance was 11 adults. The highest percentage of fruit flies attacked was at the five months and two week ages of the fruit as much as 7.18 %.
Efikasi Insektisida Abamektin 18 g/l Terhadap Keragaman Spesies, Kelimpahan Populasi Werengdaun Dan Hasil Panen Pada Tanaman Padi Sawah (Oryza sativa L.) I GEDE WINDU PUTRA; I WAYAN SUPARTHA; I WAYAN SUSILA
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.7, No.4, Oktober 2018
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Abstract

Efficacy of 18 g / l Abamectin Insecticide Against Species Diversity, Population Abundance of leafhoppers and Harvesting on Paddy Paddy Crops (Oryza sativa L.) This research was carried out in Buwit Village, Kediri District, Tabanan Regency, starting in September to November 2017. The research objective was to determine the effect of Abamectin insecticide 18 g/l on species diversity, population abundance and yield. This study used a randomized block design (RBD) with 5 replications and 5 treatments (control, 0.50g / l; 1.00g / l; 1.50g / l; 2.00g / l). The results showed that leaf leafhopper species diversity was low, as evidenced by the Shanon diversity index value was <1.5. The low value of species diversity index is caused by the low number of species in each treatment. Relatively higher variation in control compared to treatment. Abundance The highest population of nymphs and leaf leafhoppers was seen at 49 days after planting as much as 8.57. Components of harvest also show a significant difference between control and treatment.
Perkembangan Populasi dan Serangan Thrips parvispinus Karny (Thysanoptera: Thripidae) pada Fenologi Tanaman Cabai Besar di Tiga Ketinggian Tempat di Bali I NGURAH MEGA MERTA; NI NENGAH DARMIATI; I WAYAN SUPARTHA
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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Abstract

Population Development and Plant Damase by Thrips parvispinus Karny (Hemiptera: Aphididae) On the Phenology of Chili in the Three Elevation Level in Bali The aim of this research was to know the development of population, T. parvispinus plant damase and the production of chilly at three different elevation ie, Sedang Village 150 meters above sea level, Kerta Village 650 meters above sea level, and Songan Village 1000 meters above sea level. This research was using sistimatihic method wits U shape, and replicated 5 times. The each of replicatin was taken to sample points. This research was done starting from Desember 2016 to Februari 2017. The results of the three research sites showed that in all three sites the population development and damase percentage by T. parvispinus was highest on observation at 7 (Week After Transplant). The highest population abundance in Kerta Village 7.67 / one flower was followed by Sedang Village 5.76 / one flower and by Songan Village 4.08 / one flower. The highest percentage damage in Kerta Village 55.95% followed by Sedang Village 41.34% and Songan Village 16.67%. This indicated that population development affects the percentage of damage. From the three research sites there was a difference of production which were the weight of harvest in Songan Village 709 g, in Kerta Village 514 g and in Sedang Village 698 g /10 plant.
Kepadatan Populasi dan Pola Penyebaran Lalat Buah (Bactrocera Spp.) (Diptera : Tephritidae) yang Menyerang Buah Mangga (Mangifera Indica L.) di Kabupaten Buleleng KOMANG BADRIASIH; I WAYAN SUPARTHA; I WAYAN SUSILA
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.8, No.3, Juli 2019
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Abstract

Population Density and Distribution Patterns Fruit Flies (Bactrocera spp.) (Diptera: Tephritidae) that Attacking Mangoes (Mangifera indica L.) in Buleleng Regency The research population density and distribution patterns fruit flies (Bactrocera spp.) that attacking mangoes (Mangifera indica L.) in Buleleng Regency was conducted to determine diversity, population density, similarity index type and distribution patterns of population of fruit flies attacking mangoes. The study was conducted since October 2018 up to March 2019 by using purposive method to take mangoes attacked by fruit flies in Buleleng Regency. The results showed that three were species of fruit flies that attacked mangoes in Buleleng Regency, that are B. papayae, B. carambolae and B. occipitalis. Population density of B. papayae was higher than density population of B. carambolae and B. occipitalis. Average population density of B. papayae, B. carambolae and B. occipitalis were 9,36 adult/fruit, 5.15 adult/fruit and 0,04 adult/fruit, respectively. Type similarity index has a range of values from 80 – 100% with population distribution randomly (S2/X = 1) at each study location.
Pengaruh Demihipo dan ZPT (Decamon®) terhadap Mortalitas Telur dan Serangan Lalat Pengorok Daun, Liriomyza huidobrensis (Blanchard) pada Tanaman Kentang I Wayan Supartha
Jurnal Perlindungan Tanaman Indonesia Vol 8, No 2 (2002)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpti.12365

Abstract

Field experiment to determine the effectiveness of demihipo and Decamon® to induce the egg extrusion and reduce L. huidobrensis population larvae on potato was conducted in Pancasari, Buleleng (Bali) from February to August 1999. The results indicated that application of Decamon to the plant was significantly able to increase egg-extrusion of L. huidobrensis from the leaf compared with the other treatments. While, weekly application of insecticide (demihipo) was also significantly able to reduce the Larvae population on the plant. The application of the combination of both control measure (plant growth regulator or PGR) and insecticide (demihipo) was the most effective control to reduce the feeding or ovipositional-punctures of adult on the leaves. Therefore, the application of PGR and insecticide was the best to prevent and reduce the population development of L. huidobrensis in the field. In general, all control measures were able to increase the yield and advantage-added of the farmer. However, the highest increased of the yield and advantage-added in wet season were given by the plant treated with PGR (Decamon®), while in dry season given by the plant treated with the combination of PGR and demihipo.
Karakteristik Morfologi dan Kelimpahan Populasi Parasitoid (Hymenoptera) pada Hama Invasif Kutu Putih Ubi Kayu, Phenacoccus manihoti Matile-Fererro (Hemiptera: Pseudococcidae) di Bali I KADEK WISMA YUDHA; I WAYAN SUPARTHA; I WAYAN SUSILA
Agrotrop : Journal on Agriculture Science Vol 10 No 2 (2020)
Publisher : Fakultas Pertanian Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/AJoAS.2020.v10.i02.p07

Abstract

Morphological Characteristics and Populations Abundance of Parasitoid (Hymenoptera) on Invasive Pests Cassava Mealybug, Phenacoccus manihoti Matile-Fererro (Hemiptera: Pseudococcidae) in Bali. This study aims to know the morphological characteristics of parasitoid, population abundance and distribution patterns of parasitoid associated with P. manihoti on cassava crop in Bali. The study was conducted on all cassava crop in Bali with a field observation method that was determined by taking shoots of cassava plants attacked by cassava mealybug P. manihoti, then cassava mealybug P. manihoti were nurtured, then observation was carried out every day until parasitoid appeared and being identified. The results of the study showed that there were three dominant types of parsitoid that were found to be associated with invasive pest P. manihoti, namely Anagyrus lopezi, Acerophagus papayae and Blepyrus insularis. The abundance of parasitoid populations was dominated by parasitoid A. lopezi with a range of values 48.6–81.8%. Then followed by parasitoid A. papayae 7.7 - 37.1%, and B. insularis 3.4 - 14.3%. The distribution pattern of parasitoid varies in each species, parasitoid A. lopezi spreads in groups categories, Parasitoid A. papayae and B. insularis spread random-regulary on cassava crop throughout on each of the Regencies in Bali.
Co-Authors - Hamid AGNESIA KURNIAWATI Anak Agung Ayu Agung Sri Sunari ANAK AGUNG NGURAH MAHARDIKA B. Merle Shepard CRISTINE LAURINE SIMANJUNTAK DICKY MARSADI DWI WIDANINGSIH Husni dan Zulfanazli Pudjianto Alfian Rusdy I GEDE FEBRIANTO MAHA PUTRA I GEDE WINDU PUTRA I Kadek Wisma Yudha I KADEK WISMA YUDHA I Ketut Sumiarta I KETUT SUMIARTHA I Made Mega Adnyana I NGURAH MEGA MERTA I NYOMAN WIJAYA I Nyoman Wijaya I NYOMAN WIJAYA I PUTU ADNYA PRATAMA I PUTU DARMA WIASA I PUTU DEDI ADNYANA I Putu Sudiarta I Wayan Eka Karya Utama I WAYAN EKA KARYA UTAMA I WAYAN SANDIKA YASA I Wayan Sandikayasa I Wayan Susila I Wayan Susila Ida Ayu Dwi Giriantari IG.M.Oka Nurjaya Karolus A.N. Nainiti KETUT AYU YULIADHI KOMANG BADRIASIH LATIZIO BENI DA COSTA CRUZ LATIZIO BENI DA COSTA CRUZ LUH TINA ARYANTINI MADE DWIKA WIRATAMA NEVIATY PUTRI ZAMANI Ni Kadek Nita Karlina Astriyani NI MADE SERLI HERLIANADEWI NI NENGAH DARMIATI NI PUTU NIA KUMARAWATI NI PUTU NIA KUMARAWATI NOE OLIVIERA PRATIWI, NI PUTU EKA Putu Angga Wiradana PUTU SUSY LISTYAWATI RAUF, AUNU Santi Mariana Sri Wahyuni TIA GUNAWAN SARI WAYAN SUDIANTARA PUTRA