I Wayan Supartha
Department Of Agroecotechnology, Faculty Of Agriculture, Udayana University, Indonesia

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Jenis dan Peranan Parasitoid dalam Mengendalikan Populasi Lalat Buah (Bactrocera dorsalis Complex.) (Diptera: Tephritidae) yang Menyerang Buah Mangga (Mangifera indica L) di Kabupaten Buleleng I WAYAN SUSILA; I WAYAN SUPARTHA
Agrotrop : Journal on Agriculture Science Vol 10 No 1 (2020)
Publisher : Fakultas Pertanian Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (256.381 KB) | DOI: 10.24843/AJoAS.2020.v10.i01.p04

Abstract

The Role of parasitoid in controlling the population of fruit flies (Bactrocera dorsalis Complex.) (Diptera: Tephritidae) who attacked mangoes (Mangifera indica L) in Buleleng Regency. Thisresearch was conducted with the aim of knowing the role of parasitoids in controlling the population of fruit flies (Bactrocera dorsalis Complex.) (Diptera: Tephritidae) on mango plants (Mangifera indica L.) in Buleleng Regency. Field research was carried out at the Buleleng mango plantations while laboratory research was carried out at the Integrated Pest Management and Plant Disease Laboratory from April to July 2019.Field research was carried out at the Buleleng mango plantations while laboratory research was carried out at the Integrated Pest Management laboratory and was carried out from April to July 2019. Determination of the location of sampling is done diagonally and fruits infested larvae was taken purposively. The results showed that there were three species of fruit flies that attacked mango in Buleleng Regency, namely B. carambolae, B. papayae and B. occipitalis with an abundance of B. carambolae 39.3%, B. papayae 64.4% and B. occipitalis 0.3% and found three types of parasitoids namely Fopius sp, Diachasmimorpha sp. and Opius sp. The role of parasitoids in controlling fruit flies is still low when viewed from the parasitization rate of the three parasitoids namely Fopius sp. (2,24%), Diachasmimorpha sp. (1,9%), and Opius sp. (0,46%).
Aktivitas Penerbangan dan Perkembangan Populasi Thrips parvispinus Karny (Thysanoptera: Thripidae) pada Tanaman Cabai Besar (Capsicum annuum L.) NI PUTU EKA PRATIWI; I WAYAN SUPARTHA; KETUT AYU YULIADHI
Agrotrop : Journal on Agriculture Science Vol 8 No 1 (2018)
Publisher : Fakultas Pertanian Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (194.81 KB) | DOI: 10.24843/AJoAS.2018.v08.i01.p04

Abstract

Flight Activities and Population Development of Thrips parvispinus Karny (Thysanoptera: Thripidae) on Chili (Capsicum annuum L.). Thrips parvispinus Karny (Thysanoptera: Thripidae) is one of the main pests on chili. T. parvispinus attacked the leaves and flowers on chili. The behavior of its attacked fluctuate between morning until late afternoon since the plants grow in the field. The purpose of this research was to know the flight activity of T. parvispinus and its population development on leaf and flower of chilli plant. The research used survey method with direct observation on plants in the field. Flight activity of T. parvispinus was measured by using a yellow sticky trap placed diagonally on the plant. The results showed that daily flight activity of adult T. parvispinus fluctuated between morning, afternoon, and evening. The highest flight activity of adult occurred at 09.00-10.00 (39.81 adults) and the lowest was at 18.00-19.00 (9.84 adults). The population of T. parvispinus nymph was more than adult in the leaf. The highest population of nymphs occurred at 12.00-13.00 (21.07 nymphs). While the population of T. parvispinus adul was more on flower than nymph population. The highest adult population occurred at 18.00-19.00 (27.36 adults). There were strong indications that the nymph stadium frevers live on the part of the leaf than the flower, while the adult prefers the flower rather than the leaf.
Perkembangan Pradewasa dan Perilaku Parasitisasi Hemiptarsenus varicornis (Girault) (Hymenoptera: Eulophidae) sebagai Ektoprasitoid Larva Liriomyza sativae (Blanchard) (Diptera: Agromyzidae) I PUTU DARMA WIASA; ANAK AGUNG AYU AGUNG SRI SUNARI; I WAYAN SUPARTHA
Agrotrop : Journal on Agriculture Science Vol 8 No 2 (2018)
Publisher : Fakultas Pertanian Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (320.079 KB) | DOI: 10.24843/AJoAS.2018.v08.i02.p07

Abstract

Imature Development and Parasitization Behavior of Hemiptarsenus varicornis (Girault) (Hymenoptera: Eulophidae) as a Larval Ectoparasitoid of Liriomyza sativae (Blanchard) (Diptera: Agromyzidae). Liriomyza is one of the important pests that attacking vegetable plants in Indonesia. Parasitoid which is commonly associated with Liriomyza is Hemiptarsenus varicornis. The study was conducted at the Greenhouse of the Faculty of Agriculture, Udayana University and at the Integrated Pest Management Laboratory Faculty of Agriculture, Udayana University, Denpasar. The research starts from February to September 2018. The purpose of this study was to determine the development and parasitization behavior of the pre-adult phase of H. variconis on L. sativae. The development of the parasitoid pre-adult phase was observed in the form of egg, larvae, pupa and imago stages. Observation of pre-adult phase parasitization behavior was carried out by tearing the leaves of plants that had been infested and observed under a binocular microscope. The result indicated that the time required for the development of pre-adult phase H.varicornis was nine days at an average temperature of 28oC, with egg stage (24 hours), larval stage (48 hours) and the pupa stage (120 hours). The parasitization behavior of the immature parasitoid H. varicornis includes three stages, namely the search for hosts, finding the host and receiving the host and directly infusing the host's body fluids, then going away from the host's destroyed body. Host search behavior occurs when new larvae appear, while the process of sucking in body fluids occurs when the instar-1 larvae before the instar-2 and away from the host occur before parasitoid larvae enter the pupa phase.
Parameter Biologi dan Demografi Parasitoid Diadegma semiclausum Hellen (Hymenoptera : Ichneumonidae) pada Plutella xylostella L. (Lepidoptera : Plutellidae) NI PUTU NIA KUMARAWATI; I WAYAN SUPARTHA; KETUT AYU YULIADHI
Agrotrop : Journal on Agriculture Science Vol 8 No 2 (2018)
Publisher : Fakultas Pertanian Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (166.45 KB) | DOI: 10.24843/AJoAS.2018.v08.i02.p06

Abstract

Biological and Demographic Parameters of Parasitoid Diadegma semiclausum Hellen (Hymenoptera: Ichneumonidae) on Plutella xylostella L. (Lepidoptera: Plutellidae). Diadegma semiclausum Hellen (Hymenoptera: Ichneumonidae) is one of the parasitoid larvae which attacks Plutella xylostella (Lepidoptera: Plutellidae) effectively. This research was aimed to know the biology of parasitoid D. semiclausum in broccoli. The research was carried out in a laboratory by observing the development of parasitoid, fecundity, longevity the males and females as well as parameters demographic of D. semiclausum. The results showed that immature development time of D. semiclausum parasitoid from egg up to adult the imago was 10.65 ± 0.63 days, with the number of fecundity was 22.9 grains. Longevity of male imago of D. semiclausum was 12.10 ± 0.74 days and imago of females 9.80 ± 1.87 days. Parameters demographic of D. semiclausum showed that net reproduction rate (R0) was 22.11 per generation, intrinsic growth rate (r) was 0.18 per day, limited increased rate (?) was 1.16 individuals per day, generation time (T) was 17.50 day.
Uji Pemangsaan dan Tanggap Fungsional Predator Chysoperla carnea Stephens (Neuroptera: Crysopidae) Terhadap Phenacoccus manihoti Matile-Ferrero (Hemiptera: Pseudococcidae) I WAYAN DIRGAYANA; I WAYAN SUPARTHA; I NYOMAN WIJAYA
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.p08

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Predation and Functional Response Test of Predator Chysoperla carnea Stephens (Neuroptera: Crysopidae) Against Phenacoccus manihoti Matile-Ferrero (Hemiptera: Pseudococcidae). This study aims to evaluate the predatory capacity of C. carnea by measuring the rate of searching capacity and handling-time of one prey and its functional response to the population density of P. manihoti. The research was conducted at the Integrated Pest Management Laboratory (IPMLab), Faculty of Agriculture, Udayana University. The study was conducted from February to May 2019. Testing of functional responses used a randomized block design with 5 treatments (3, 6, 9, 12, 15 nymphs-3) each of which was repeated 10 times. The results showed that the prey searching-capacity when the population was low (3 nymphs-3) took longer (10.37 minutes), while when the population was high it took a short time (6.23 minutes). The length of time for handling one prey in the low population was 6.08 minutes, while in the high population it was 5.48 minutes. Predator C. carnea has a tpe-2 functional response to an increase in the population of P. manihoti nymphs with the equation Y = 4.32x / 1 + 1.973x (R2 = 0.980). The rate of predation increases sharply when the population of low increases, and decreases when the increase of prey population increases. C. carnea has the potential to be developed as a control agent for P. manihoti.
Kelimpahan Populasi dan Tingkat Parasitisasi Parasitoid Indigenus terhadap Hama Invasif Liriomyza trifolii (Burgess) (Diptera: Agromyzidae) pada Tanaman Asteraceae di Bali I WAYAN SANDIKA YASA; I WAYAN SUPARTHA; I WAYAN SUSILA
Agrotrop : Journal on Agriculture Science Vol 10 No 1 (2020)
Publisher : Fakultas Pertanian Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (235.53 KB) | DOI: 10.24843/AJoAS.2020.v10.i01.p07

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Population Abundance and Parasitization Level of Indigenous Parasites to Invasive Liriomyza trifolii (Burgess) (Diptera: Agromyzidae) on Asteraceae Plants in Bali. This study was aimed to determine the population abundance and parasitization level of indigenous parasitoid associated with Liriomyza trifolii (Burgess) in Asteraceae plants in Bali. The study was conducted from January to March 2019 by survey method on the type of parasitoid, abundance and parasitisation level in Asteraceae plants which included to Chrysanthemum, Gerbera jamesonii and Helianthus annuus, which are spread in several regencies in Bali such as Buleleng (1200 m asl), Bangli (900-1000 m asl) and Denpasar (40 m asl). Sampling was done purposively on the leaves of plants attacked by Liriomyza sp. and then maintained at the Laboratory until the parasitoid adults appeared. Afterward, morphologically was identified the type of parasitoid that appears. The results showed that there were three types of indigenous parasitoid associated with L. trifolii namely Hemiptarsenus varicornis, Neochrysocharis okazakii, and Opiusdissitus. The most dominant parasitoid of the three types of H. varicornis parasitoid with an abundance of 78.57% and parasitization rate of 53.23% was found in Chrysanthemum plants.
Pengaruh Kualitas dan Kuantitas Pakan (Daun Bawang) terhadap Kejadian Polimorfisme Warna pada Larva Spodoptera exigua Hubner (Lepidoptera: Noctuidae) LATIZIO BENI DA COSTA CRUZ; I WAYAN SUPARTHA; I WAYAN SUSILA
Agrotrop : Journal on Agriculture Science Vol 8 No 2 (2018)
Publisher : Fakultas Pertanian Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (239.68 KB) | DOI: 10.24843/AJoAS.2018.v08.i02.p03

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The Effect of Feed (Onion Leaves) on the Event of Color Polymorphism on Larvae Spodoptera exigua HUBNER (Lepidoptera: Noctuidae). Color polymorphism is a form of color difference that appears morphologically and genetically in the same insect species. The existence of these changes in shape has to do with the defense mechanism of the species concerned for disguise, avoiding natural enemies and adjusting to the new environment. The occurrence of color polymorphism is often found in S. exigua larvae that attack the onion crop in the field. The purpose of the study was to determine the effect of the quality and quantity of feed (onion) on the color changes of S. exigua larvae. This research was carried out in the laboratory using adaptation test method and comparative test with randomized block design. The results of the study show that decreasing the quality and quantity of feed (onion) encourages color changes from green to dark. In addition, green to dark color changes are also triggered by the developmental phase of the larvae. The development of larvae from the 3rd instar phase has shown symptoms of color change from green to dark even though the quantity and quality of the food is fulfilled.
UJI AKTIVITAS INSEKTISIDA BEBERAPA EKSTRAK TANAMAN PADA HAM A LIRIOMYZA SATIVAE (BLANCHARD) Karolus A.N. Nainiti; I Wayan Supartha; IG.M.Oka Nurjaya
AGRICA Vol. 1 No. 2 (2008): December
Publisher : Agriculture Faculty of Flores University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37478/agr.v1i2.482

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The usage of herbal insecticide for leafminer control is based on the principle that organic compounds that are produced by plants to survive from the leafminer are selective, can be digested by the organism, and also can be broken down by heat, oxygen, and sunshine. This study was to test the activity of 15 plant extracts to find out which kinds of plant extracts had insecticide activity to Liriomyza Sativa. The study design was a randomized block design, with 17 treatments (15 kinds of plant extract and two controls), and was replicated five times. The trials were done at the glasshouse of Pest and Plant Disease Department of Agricultural Faculty at Udayana University. The results of the study showed that each plant extract that was used in this trial had different insecticide activity to L Sativa. The seed coat extract from the seed A. occidentale L. and the extract of P. retrofractum Vahl had the highest insecticide activity to L sativae.
RESPON BIOLOGIS BEBERAPA JENIS PARASITOID PADA LALAT PENGGOROK DAUN Liriomyza huidobrensis BLANCHARD Sri Wahyuni; I Wayan Supartha
AGRICA Vol. 2 No. 1 (2009): June
Publisher : Agriculture Faculty of Flores University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37478/agr.v2i1.543

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This research conducted to know the biological responses of leaf miner parasitoid Liriomyza huidobrensis is Hemyptarsenus varicomis Girault (Eulophidae), Opius sp (Braconidae) and Gronotoma micromorpha (Eucoilidae). Three species of parasitoid chosen as the substance of research caused by biological agent superiorities. On this research, there are some observed that is long life imagoes, preoviposition, oviposition period, after oviposition, The egg-laying rate, fertilization, daily fertilization, mortality and female proportion. This research was conducted for four-month at Ecology Laboratory and Insect Systematics and at the Green House of Pest and Plant Diseases Department, Faculty of Agriculture Udayana University in Denpasar. Used substance of host kidney bean (Vigna sinensis L ) host insect ( L. Huidobrensis ) and species of the parasitoid (H.varicornis, Opius sp and G.micromorpha) The experiments using randomized complete block design was used in this research. The observed results indicated that betwen three species of parasitoid used H.varicornis has preoviposition period and time after oviposition shortest so that to reproduce generation of H.varicornis faster than G.micromopha and Opius sp. At the meantime the fertilization level, and best female proportion produced of H.varicornis. Mortality on G.micromorpha and O.liriomyzae cause of paralyzing and host- feeding by H.varicornis. Mortality on G.micromorpha and Opius sp influential to female proportion number that produced that is the mortality of female generation caused of paralyzing and host-feeding by H. varicornis, So that fertilizing level, parasitisation level and female proportion higher happen if G.micromorpha or Opius sp released after releasing H. varicornis
Distribusi dan Kemampuan Adaptasi Spodoptera frugiperda (J. E Smith) (Lepidoptera: Noctuidae) Terhadap Tanaman Inang pada Beberapa Ketinggian Tempat di Bali PUTU SUSY LISTYAWATI; I NYOMAN WIJAYA; DWI WIDANINGSIH; I WAYAN SUPARTHA
Agrotrop : Journal on Agriculture Science Vol 12 No 1 (2022)
Publisher : Fakultas Pertanian Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/AJoAS.2022.v12.i01.p10

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Distribution and Adaptability of Fall Army Worm, Spodoptera frugiperda (J.E Smith) (Lepidoptera: Noctuidae) Against Host Plants at Several Altitudes in Bali. The armyworm pest (Spodoptera frugiperda J.E. Smith) was first discovered attacking maize plants in Sumatra in 2019.These pests move very quickly from a wide range of altitude and host plant, while in Bali only discovered this pest attack maize plants at an altitude <500 meters above sea level (masl). The purpose of this study was to determine the distribution map of S. frugiperda, to determine the population and host plants in the field and to determine the attack of S. frugiperda at several altitudes in Bali. This study used purposive survey method. Plant sampling was carried out in all regencies of Bali Province by means of diagonal sampling. The size of unit sample was2 x 2 m and the number of plants observed was 20 plants. The results showed that the pest S. frugiperda had spread in the highland up to (> 1000 masl) which attacked maize and sorghum in Bali. The distribution area of the pest are Tabanan, Badung, Gianyar, Klungkung, Karangasem, Bangli, Buleleng, Jembrana and Denpasar. The population of S. frugiperda was found until the highland (> 1000 masl) with a population of host plants is still low and spread at 5 altitude with type host plants found, sweet corn, glutinous corn, corn pipil, local corn and sorghum. he percentage of S. frugiperda attacks at 5 altitudes in Bali is 11.71% to 35.13%.