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All Journal Agrotrop : Journal on Agriculture Science E-Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology)
DWI WIDANINGSIH
Jurusan/Prodi Agroekoteknologi Fakultas Pertanian Universitas Udayana
Agriculture, Biological Sciences & Forestry

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Pengaruh Fipronil Terhadap Kelimpahan Populasi dan Tingkat Parasitisasi Parasitoid Telur Penggerek Batang Padi Kuning di Kabupaten Tabanan I GEDE FEBRIANTO MAHA PUTRA; I WAYAN SUPARTHA; DWI WIDANINGSIH
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 Fipronil 50 g/l Against Population Abundance and Parasitization Level of Egg Parasitoid of Yellow Rice Stem Borer in Tabanan District Yellow rice stem borer, Scirpophaga incertulas Walker (Lepidoptera: Pyralidae), is one of the important pests of rice plants in Indonesia. Efforts to control those pests are using a lot of synthetic insecticide in the field, meanwhile egg parasitoid is considered to have an important role in the control those pests in nature. The aim of this research is to know the influence of insecticide with active ingredient Fipronil 50 g/l to population abundance and parasitization level of egg parasitoid of yellow rice stem borer. The research was arranged by using randomized block desing with six treatments and four replicates. The results showed that T. Schoenobii parasitoid is the most dominant parasitoid among other types of parasitoids and its diversity is low that is <1,5. Pesticide with active ingredient Fipronil 50 g/l has significant effect on population abundance and parasitization level egg parasitoid of yellow rice stem borer. The highest population abundance was on control and lowest in treatment dose 1.50 cc/l. The highest parasitoid parasitization rate in Tabanan is (19.70%). The parasitization rate was decrease with the increase of tested insecticide dose, so the lowest number was at 1.50 cc/l treatment with percentage (8.62%).
Penggunaan Trichoderma sp.dan Penyambungan untuk Mengendalikan Penyakit Utama Tanaman Tomat (Licopersicum esculentum Mill.) di Desa Bangli, Kecamatan Baturiti, Tabanan I PUTU BAWA ARIYANTA; I PUTU SUDIARTA; DWI WIDANINGSIH; I KETUT SUMIARTHA; GUSTI ALIT SUSANTA WIRYA; MADE SUPARTHA UTAMA
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.4, No.1, Januari 2015
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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ABSTRACT Utilization of Trichoderma sp. and Grafting to Controlthe Mayor Diseases of Tomato (Licopersicum esculentum Mill.) in Bangli Village, Baturiti, Tabanan Control of plant diseases is one of the constraints in the cultivation of tomatoes. Control method performed by farmers generally use synthetic pesticides, however that cause environmental pollution. The use of Trichoderma sp. and grafting is an environmentally friendly technology in controlling plant diseases. The purpose of this study was in order to determine the ability of Trichoderma sp. and the grafting between the eggplant EG203 strain as rootstock and scions tomatoes as to control major diseases and improve tomato production. This study used a factorial randomized block design with six treatments and four replications.Diseases were found in field tomatoes are late blight (Phytophthora infestans) and yellow curly leaf disease (Tomato Yellow Leaf Curl Virus). Statistical analysis showed that Trichoderma sp. and grafting can reduce the disease severity of leaf blight and increase the production of tomato plants, but was unable to control the disease yellow leaf curl. Average of disease severity of leaf blight on grafting with screen and Trichoderma sp. was lower (61.11 and 62.03%) when compared to treatment without grafting and without Trichoderma sp. (82.99 and 75.47%). Average of yields on treatment grafting with screen and Trichoderma sp. was higher (3912.50 and 3822.22 g/plant) compared to treatment without grafting and without Trichoderma sp. (2858.33 and 3280.55 g/plant). Keywords: disease of tomato, Trichoderma sp., and grafting.
Pengaruh Populasi Kutu Daun pada Tanaman Cabai Besar (Capsicum Annuum L.) terhadap Hasil Panen KORI’ ANGGRAINI; KETUT AYU YULIADHI; DWI WIDANINGSIH
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.7, No.1, Januari 2018
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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The influence of the population of Aphids on crops of great chili pepper (Capsicum annuum L.) Against The Harvest One of the obstacles in the cultivation of pepper plants is the presence of aphid pest attack. The purpose of this research is to know the influence of the population of aphids on crops of Chili with different age and influence pest aphids attack against crops plant chili. Moving on to the results was showing that aphid pests attacked chili plants at different ages. The attack was found since the 100plant was two weeks after planting (wap) with the amount of 45.1 tail. Peak attacks occur in plants four weeks after planting (wap) with a total of 175.0 tails. Furthermore, the attack was a decrease due to the age of the plant getting older. An aphids attack results in low yields. Observation on chili harvest was done only 2 times. The highest occurrence of pepper crops has the lowest average yield of 33.8 g and 38.2 g whereas, the lowest pest-infected pepper plant has the highest average yield of 52.33 g and 57.2 g.
Perkembangan Populasi Liriomyza brassicae Riley (Diptera: Agromyzidae) dan Struktur Komunitas Parasitoid yang Berasosiasi dengan Tanaman Kubis-kubisan (Brassicaceae) di Provinsi Bali WAYAN SUDIANTARA PUTRA; I WAYAN SUPARTHA; DWI WIDANINGSIH
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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Populations Development of Liriomyza brassicae Riley (Diptera: Agromyzidae) and Community Structure of Parasitoid Associated with Cabbage (Brassicaceae) in Bali The research to find the morphological characteristics of Liriomyza brassicae, density and population development of L. brassicae, the community structure of parasitoid associated with cabbage (Brassicaceae) in Bali. This research was conducted in Baturiti Village (<850 m asl) Tabanan Regency, Kintamani Village (850-1000 m asl) Bangli Regency and Kembang Merta Village (> 1000 m asl) Tabanan Regency. The research was carried out from January 2018 to March 2018. The sampling method was carried out purposively and the number of samples taken from 20-50 leaves were attacked by Liriomyza. Identification of Liriomyza and parasitoid was carried out at the Integrated Pest and Disease Control Laboratory (IPM Lab) Faculty of Agriculture, Udayana University. The results showed that the morphological characteristics of L. brassicae namely mesonotum were black with yellow on the side, the scutellum was yellow with both brown corners colored, coxa and femur brownish yellow, yellow mesopleura, and the dorsal abdomen had a longitudinal line that cut the segment first abdomen to second abdomen. The result showed that population density of L. brassicae highest in broccoli at (> 1000 m asl) and the lowest in green mustard at (<850 m asl). The result showed that population development of L. brassicae highest at plant age 5 MST and population decline occurred at the plant age of 9 MST. The results also showed that there were 2 species of parasitoids associated with L. brassicae namely Opius sp., and Hemiptarsernus varicornis. The diversity index, abundance index, and parasitoid domination index associated with L.brassicae were highest in broccoli at (> 1000 m asl) and lowest in mustard at (<850 m asl).
Pengaruh Pemanfaatan Tanaman Pembatas Pinggiran Terhadap Populasi Hama dan Musuh Alami Pada Pertanaman Kubis (Brassica Oleracea L.) MIFTAHUS SIROJUDDIN; KETUT AYU YULIADHI; DWI WIDANINGSIH
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.5, No.4, Oktober 2016
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Abstract

Effect of Plant Utilization Limiting Fringe Against Population Pests and Natural Enemies On Planting Cabbage (Brassica oleracea l.)   The purpose of the study is  to determine the effect of plant utilization Limiting Fringe barrier against pest species diversity, species diversity of natural enemies, pest species abundance, and abundance of natural enemy species on cabbage crop. The research was conducted in two places items, namely in the field and in the laboratory. Sampling is done diagonally plant. Pest species diversity on both compartments consisting of six species of Aphis brassicae, Crocidolomia pavonanaFab,Plutella xylostella L,Spodoptera litura Fab, Helicoverpa armigera Hubner, and Chrysodeixis orichalcea. There are three species that have a more dominant population abundance namely A. brassicae, P. xylostella and C. pavonana. Species diversity of natural enemies of equal treatment, both in the parasitoid diversity consists of a single species Diadegma semiclausum.e. whereas in the diversity of the species there are six predator Menochilus sexmaculatus, Ischiodon scutellaris, Paederus fuscipes Curt, Dolichoderus bituberculatus, Oecophylla smaragdinaand Sycanus sp. The results Showed an Increase in the percentage of the natural enemies of the moment map of plant cabbages planted with crops in the suburban area of the Cabbage Cropping.
Kelimpahan Populasi Lalat Buah (Bactrocera spp.) dan Persentase Serangannya pada Buah Labu (Cucurbita maxima Duch) di Rovinsi Bali DHEAR ANANDA SEMBIRING MAHA; DWI WIDANINGSIH; NI NENGAH DARMIATI
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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The Abundance of Fruit Flies (Bactrocera spp.) and the Percentages of Damage on Pumpkins (cucurbita maxima duch) in Bali Province The research of population a bundance and percentase of damage of bactrocera spp on pumpkin plants in Bali Province was carried out in ordel to determine the abundance of adults insect population and percentase of damage of this insect. The field regencies was connected in Bangli, Gianyar and Badung regencies and was crutimued in the Integrated Laboratory of Pest and disersaes Faculty of Agriculture, Udayana University, from February until April 2019. This research showed that the species was found to attack pumkins in the field were Bactrocera cucurbitae. The abundance of adult insect was calculated based on each fruit grades. The abundance on grade 5-10, 11-15, 16-20 >20 cm were 529, 239, 140, and 90, respectively. The of percentage of damage was calculated in lack vergency, where the sampling take place. The percentage of damage in Gianyar, Badung, and Bangli were 34%, 28%, and 30%, respectively.
Kepadatan Populasi dan Persentase Serangan Hama Tungau Merah Tetranychus Urticae Koch (Acarina : Tetranychidae) pada Tanaman Jeruk Siam (Citrus Nobilis Lour) yang di Perlakukan dengan Akarisida Piridaben 135 g/l NI NYOMAN PEBRIANI; DWI WIDANINGSIH; NI NENGAH DARMIATI
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 Density and Presentage of damage Red Mite Tetranychus urticae Koch (Acarina : Tetranychidae) on Siam Citrus (Citrus nobilis Lour) treated with Acaricide Pyridaben 135 g/l This research was carried out in Sekaan village, Kintamani District, Bangli Regency, from January until March 2018. The study used Randomized Block Design (RAK) with 5 acricide treatments of I, II, III, IV, and control were 0.125 ml / l, 0.25 ml / l, 0.375 ml / l, 0.5 ml / l and 0 ml/l, respectively. Piridaben acaricide had a significant effect on population density and percentage damage of T. urticae. The highest population density and Percentage damage of T. urticae on leaves and fruit was found at control and the lowest at 0.5 ml / l treatment.
Efikasi Insektisida Imidakloprid 25% terhadap Struktur Populasi (Myzus persicae SULZER) dan Musuh Alami pada Tanaman Cabai Merah (Capsicum Annuum L.) I GEDE AGUS ADI WIRADARMA; KETUT AYU YULIADHI; DWI WIDANINGSIH
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 Insecticide Imidaklofrid 25% Against The Natural Enemy and Population Structure (Myzus Persicae SULZER) On Red Chili (Capsicum Annuum L) This study aims to determine the effect of insecticides made from Imidacloprid 25% active against the Myzus persicae pest population structure and natural enemies. The results showed that the treatment of insecticide Imidakloprid 25% had significant effect on the abundance of M. persicae, M. persicae density, and the abundance and diversity of natural enemies in red chili plant. The highest population abundance of M. persicae was found in the control treatment with an average of 7.24 and the lowest in the treatment dose of 200 g/ha with an average of 0.56 plants on ten leaves. Treatment of Insecticide Imidacloprid 25% also influenced the density of M. persicae, the highest density was found in the control treatment that was 0.23 head/m2 while the lowest was found in the treatment of insecticide dose 200 g/ha was 0.09 head/m2. Treatment Insecticide Imidakloprid 25% also affects the existence of natural enemies in chili planting. Found two types of natural enemies of the predator and parasitoid groups. From the predatory group Menochilus sexmaculatus and from the parasitoid group Aphidiid, the observed parasitoid is the mummi M. persicae. The highest abundance of natural enemies was found in the control treatment with an average of 11.55 while the lowest abundance at the treatment dose was 200 g/ha with an average of 3.14. Imidacloprid 25 % Insecticide also affects the diversity of natural enemies, the highest diversity was found in the control treatment of 0.14% while the lowest diversity was found in the 200 g/ha dose of insecticides treatment of 0.05%.
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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Abstract

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.
Keragaman dan Daya Hambat Spora Tular Udara yang Mengkontaminasi Media Baglog Jamur Tiram (Pleurotus ostreatus (Jacq. ex Rr) Kummer) I MADE SUDARMA; NI MADE PUSPAWATI; NI NENGAH DARMIATI; KETUT AYU YULIADHI; NI WAYAN SUNITI; I GUSTI NGURAH BAGUS; I NYOMAN WIJAYA; DWI WIDANINGSIH
Agrotrop : Journal on Agriculture Science Vol 5 No 2 (2015)
Publisher : Fakultas Pertanian Universitas Udayana

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Diveristy and Inhibition of Air-Borne Spores That Contaminate Substrat of OysterMushroom (Pleurotus ostreatus (Jacq. Ex Fr) Kummer). The aim of research to know thediversity, prevalence and inhibition of air-borne spores that could potentially contaminatesubtsrat baglog of oyster mushrooms. In this study using the method: (1) the arrest of sporescarried out during the hours of 7 am to 13 pm by placing three petri dish that already containsmedia PDA 3 pieces, and repeated 3 times, (2) inhibition ability of air-borne spores againstoyster mushroom. The place and time of the study conducted at Jl. Siulan Gang Zella No. 7Denpasar, and implemented in October 2014 to February 2015. The results showed that 13genera, including Aspergillus spp, as many as 10 with a prevalence of 13.51%, Aspergillusniger 7 (9.45%), Brachysporium sp., 1 (1.35%) , Cunninghamella sp. 1 (1.35 %), Fusariumspp. as many as 19 (25.6 %), Giotrichum sp. 1 (1.35%), Mucor spp. , a total of 18 (24.32%),Neurospora spp., as many as 8 (10.81%), Penicillium spp. 2 (2.70%), Phytophthora spp. 4(5.40%), Stachybotrys sp. 1 (1.35%), Trichoderma sp. 1 (1.35%) and Umbelopsis sp. 1 (1.35%). The highest prevalence achieved by Fusarium spp . amounting to 25.67 %, followed byMucor spp. 24.32%. Diversity index (H') was obtained from each replicate of 0.6438, 0.7048,0.5611 with a 0.6366 average. Dominance index (C) obtained by 0.6331. 0.8646, 0.6146, andaverage 0.7041. Diversity including < 1, marked by low diversity and dominance index closeto 1, meaning there is dominance. The dominance held by Fusarium spp . and Mucor spp.Inhibitory effects of air -borne fungi on the growth Oyster mushroom in vitro; The highestachieved by Fusarium spp, with inhibition of 94.00 ± 1.2%, followed by Aspergillus spp.amounting to 92.15 ± 1.5%, and the lowest was achieved by Penicillium spp . amounting to70.37 ± 2.5%.
Co-Authors ADNYANA, I MADE MEGA DHEAR ANANDA SEMBIRING MAHA GUSTI AYU INTAN ARI LESTARI Gusti Ngurah Alit Susanta Wirya I GEDE AGUS ADI WIRADARMA I GEDE FEBRIANTO MAHA PUTRA I Gusti Ngurah Bagus I KETUT SUMIARTHA I MADE SUDARMA I MADE SUDARMA I MADE SUPARTHA UTAMA I NYOMAN WIJAYA I NYOMAN WIJAYA I PUTU BAWA ARIYANTA I Putu Sudiarta I WAYAN DEDI ADNYANA I Wayan Supartha KETUT AYU YULIADHI KORI’ ANGGRAINI MIFTAHUS SIROJUDDIN Ni Made Puspawati NI NENGAH DARMIATI NI NYOMAN PEBRIANI NI WAYAN SUNITI PUTU SUSY LISTYAWATI Saputra, Kelvin Indra Simare-Mare, Rut Megawati Sunari, A. A. Ayu Agung Sri WAYAN AGUS ANDI SULHAN WAYAN SUDIANTARA PUTRA