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Journal : E-Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology)

Pengaruh Penggunaan Mulsa Plastik Terhadap Kelimpahan Serangga Myzus persicae pada Tanaman Cabai Rawit (Capsicum frutescens L.) KADEK DWI UTAMA; I GUSTI NGURAH BAGUS; I KETUT SIADI; DEWA NYOMAN NYANA; GEDE SUASTIKA
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 Effect of Plastic Mulch to Myzuspersicae Insect Abundance in Plant Cayenne Pepper (Capsicum frutescens L.)   Cayenne Pepperis one of theimportantvegetablesgrowncommerciallyinthe tropicsandoccupythe mostextensiveacreageamongother vegetablesin Indonesian. There are fivespeciesarecommonly cultivatedchiliCapsicumannuum(red pepper), C.frutescensL(cayenne pepper), andC.chinensis, C.bacctum, C.pubescens(chili gendot). However,theeconomicpotentialis a typeof chiliC.annuumandC.frutescensL. The purposeofthis study wastoknow theeffect of the useof plasticmulchoninsectabundanceMyzus persicaeoncropsandcayenne pepper. There arethree treatmentsbeing testedareplantingchiliusingblackplasticmulch(MH), a silverplasticmulch(MP) andplantingwithoutmulchorcontrol(K).The results showedthat theuse ofblack plasticmulchandsilverplasticmulchcannotpreventaphids andwhiteflyinchillicrop, however the presence ofblackplasticmulchandsilverplasticmulchcanreduceboththe insectpopulation. Key words :Cayenne Pepper,Myzus persicae, plastic mulch
Keragaman dan Kepadatan Populasi Predator yang Berasosiasi dengan Hama Penting pada Tanaman Kubis (Brassica oleracea L.) NI WAYAN ASRIANI; I GUSTI NGURAH BAGUS; NI NENGAH DARMIATI
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.2, No.3, Juli 2013
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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ABSTRACT The Predator Diversity and Population Density Associated with Important Pest in Cabbage Plant (Brassica Oleracea L.) The cabbage plant (Brassica oleracea var. capitata L.) is an important vegetable especially in the highland, has been much cultivated and tried by farmers in Indonesia especially in rural areas. The vitamins contained in cabbage that is vitamin A, B and C which have important role in fulfilling human needs. The aim of this research is to find out the diversity and density of predator population associated with important pests in cabbage plant. To find out about the progress of predator population density associated with important pests in cabbage plant. The result of observation to the diversity of predator’s types showed that five types of predators were found associated with important pests in cabbage plant that was Menochilus sexmaculatus, Ischiodon scutellaris, Paederus fuscipes Curt, Dolichoderus bituberculatus, Oecophylla smaragdina. Diversity index of these types of predators was classified as low which was (0.60). Key words: Predator and Cabbage plant.
Aplikasi Ekstrak Bahan Nabati Berbagai Tanaman terhadap Perkembangan Populasi dan Reproduksi Nematoda Puru Akar Meloidogyne spp. pada Tanaman Tomat (Lycopersicum esculentum Mill.) PUTU ANA DIANTARI; MADE SRITAMIN; I GUSTI NGURAH BAGUS
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.4, No.2, April 2015
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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ABSTRACT Application of plant extracts to control the population and reproduction of Meloidogyne spp. on tomato (Lycopersicum esculentum Mill.) Root knot nematodes Meloidogyne spp. was one of the pests that can be a limiting in crop cultivation. Efforts to control nematodes in general performed chemically by using synthetic nematicides. Use this Nematisida can negatively impact the environment, especially when the use of nematicides is too excessive. To try to avoid it in a way that is friendly to the environment control using plant-based materials.The purpose of this study was to determine the plant extracts were able to suppress the population of Meloidogyne spp. and determine the most effective plant extracts suppress the population of Meloidogyne spp. the results showed that the nematode population in the soil of 300 g show the lowest was found in the extract treatment plant Piper betle L. is 25 head, with a percentage of 95%, followed by treatment of Carica papaya tail 28.75 (94.25%), Nicotiana tabacum tail 32.25 (93.55%), Allium sativum 49.5 tail (90.1%), Allium sativum 56.5 tail (88.7%), Riccinus tail communis 63.25 (87.35%), Datura stramonium L. 65 individuals (87%), Morinda citrifolia tail 68.28 (86.34%). To the amount of 1 g of root galls in the most tangible effect of treatment indicated by the plant extract of Piper betle L. with the average number of root knot per 1 g of root pieces with a percentage of 96.5 to 17.5%, followed by treatment of the plant Carica papaya extracts 20, 5 pieces (95.9%), Nicotiana tabacum L. 22.5 units (95.5%), Allium sativum fruit 24.5 (95.1%), Capsicum frutescens L. fruit 26.75 (94.65%), Riccinus communis fruit 28.5  (94.3%), Datura stramonium L. 30.5 units (93.9%), Morinda citrifolia L. fruit 32.25 (93.55%). root knot nematode populations in a 1 g root is: Piper betle L. plant extract with an average of 23.75 tails nematode populations with emphasis percentage (95.25%), followed by treatment of Carica papaya 26.0 tail (94.8% ), Nicotiana tabacum L. tail 28.75 (94.25%), Allium sativum tail 30.75 (93.85%), Capsicum frutescens L. 34.0 tail (93.2%), 36.75 Riccinus communis tail (92.65%), Datura stramonium L. tail 42.75 (91.45%), Morinda citrifolia L. 44.0 tail (91.2%). number of egg masses in the 1 g roots of plants treated with each treatment with the control test plant extracts showed Piper betle L. plant extracts resulted in suppression of egg masses is simply the most good 4.0 percentage points to 99.2% suppression, followed by Carica papaya 6.5 points (98.7%), Nicotiana tabacum L. 9.0 points (98.2%), Allium sativum 10.5 points (97.9%), Capsicum frutescens L. 11.75 grains (97, 65%), Riccinus communis 13.25 points (97.35%), Datura stramonium L. 15.0 points (97%), Morinda citrifolia L. 17.25grains(96.5%). Keywords:Caricapapaya,Nicotianatabacum L., Piper betle L.Tomato plants and Meloidogyne spp.
Persebaran, Populasi dan Persentase Serangan Citripestis Sagittiferella Moore (Lepidoptera: Pyralidae) Pada Buah Jeruk Besar di Kabupaten Bangli dan Gianyar KADEK ADI MARTHANA; I GUSTI NGURAH BAGUS; 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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The Distribution, Population and Damage Percentage of Citripestis Sagittiferella Moore (Lepidoptera: Pyralidae) on Large Citrus Fruits in Bangli and Gianyar Regencies This research was conducted in Bangli (Kintamani District) and Gianyar Regencies (Sukawati, and Payangan Districts), and in Integrated Pest Management and Disease Laboratory, Faculty of Agriculture, Udayana University, from December 2017 to February 2018. The purpose of this research are to know the distribution, population and demage percentage of citrus borer, Citripestis sagittiferella. This research used a survey method. The research area was divided into three altitudes, Sukawati District (0-450 m asl), Payangan District (altidute> 450-800 m asl), and Kintamani District (altidute>800-1000 m asl). The results showed that C. sagittiferella was found evenly distributed in all altitude locations, in Sukawati District, Payangan District and Kintamani District with total population of 3684 larvae, 2152 larvae and 916 larvae respectively. The average larva population found in citrus fruits damage was 6.28 larvae per fruit. Percentage of damage in Kintamani, Payangan, and Sukawati Districts were 30.37%, 25.26%, and 18.18%, respectively. The correlation test results show a very strong correlation between the larval population and the percentage of damage with r = 0.988.
Deteksi Keberadaan Penyebab Penyakit Citrus Vein Phloem Degeneration (CVPD) secara Molekuler pada Tanaman Jeruk Siam (Citrus nobilis Lour var. microcarpa Hassk) berdasarkan Variasi Gejala Klorosis IKA NURHAYATI; WAYAN ADIARTAYASA; I GUSTI NGURAH BAGUS
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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Detection of the Presence of Citrus Vein Phloem Degeneration (CVPD) Disease Causing in Molecular on Citrus (Citrus nobilis Lour var. microcarpa Hassk)which Based on Variation of Chlorosis Symptoms This research was aimed to identify the presence of Liberobacter asiaticum which caused of Citrus Vein Phloem Degeneration disease on citrus leave with different chlorosis symptoms. This research was conducted at Laboratory of Genetics Resources and Biology Molecular, Udayana University. The leaves sample were measured the chlorophyll content using a chlorophyll meter and then were identified in molecular using Polymerase Chain Reaction (PCR) technique, using primer O11 and O12 which will amplified the specific fragmen of 16S rDNA. The result for chlorophyll content indicated that the leaf samples were containing 26.80, 36.52, 36.62, 40.74, 44.56, 47,06, 58.44 and 65.16 SPAD.DNA amplification showed that the leaves which contained chlorophyll at 58.44 and 65.16 SPAD didn’t show DNA bands with size 1160 bp, and leaves which contained chlorophyll at26.80, 36.52, 36.62, 40.74, 44.56 and 47.06 SPAD showed DNA bands 1160 bp. Therefor the DNA bands 1160 bp is expression by L. asiaticum, then the citrus leaf samples were detected positive for the L. asiaticum and the samples were positive infected by CVPD disease, so that the chlorophyll content of citrus leaves at ?47.04 SPAD can be used as basis to diagnosis CVPD disease on citrus plants.
Pengaruh Media dan Umur Biakan Jamur Metarhizium anisopliae M. terhadap Tingkat Kematian Larva Oryctes rhinoceros L. (Scarabaeidae ; Coleoptera) NI MADE WINDA UTARI; PUTU SUDIARTA; I GUSTI NGURAH BAGUS
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.4, No.2, April 2015
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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ABSTRAK Influence of Media and Fungus Metarhizium anisopliae M. Age culture to Larvae Mortality of Oryctes rhinoceros L. (Scarabaeidae; Coleoptera) Oryctes rhinoceros L. is importance pest that can be serious problem to coconut plantations. The utilization of fungus Metarhizium anisopliae M. as biological agents has became a recommended alternative choice considering its selective and safe infect to ecosystem. The purposes of this study in order to find out the effectiveness rates of media and culture age of fungus M. anisopliae on   O. rhinoceros larvae mortality and to find out the culture age of M. anisopliae in corn and rice media that cause O. rhinoceros larvae mortality. This study used in vitro and direct trial method. The result showing that fungus Metarhizium anisopliae in culture age of 4 weeks have ability to infect the larvae since 6th and on  14th days after application the all of  larvae was infected. On the other hand the fungus in culture age of 3 weeks the  larvae was infected since 7th day after application and on 21st days after application the all larvae was infected. Keywords:, Oryctes rhinoceros L. Metarhizium anisopliae M.
Populasi dan Serangan Hama Polong Kedelai Etiella zinckenella (Treitschke) (Lepidoptera: Pyralidae) yang Diperlakukan dengan Insektisida Berbahan Aktif Klorpirifos 500 g/l dan Sipermetrin 50 g/l NGAKAN PUTU MEIKA RUSYANA; I GUSTI NGURAH BAGUS; ANAK AGUNG AYU AGUNG SRI SUNARI
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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Population and Attack of Soybean pods Etiella zinckenella (Treitschke) (Lepidoptera: Pyralidae) treated Insecticide with Activity Klorpirifos 500 g/l and Sipermetrin 50 g/l The study was conducted to find out the Population and Attack of Soybean pods, Etiella zinckenella (Treitschke) (Lepidoptera: Pyralidae) treated Insecticide with Activity Klorpirifos 500 g/l and Sipermetrin 50 g/l. This research was conducted in Gunaksa Village, Dawan District, Klungkung Regency, from December 2016 until February 2017. The purpose of this research is to know the effect of insecticide active ingredient (Klorpirifos 500 g/l and Sipermetrin 50 g/l) to soybean pest the populations of and the rate of E. zinckenella pests on soybean crops. This study used a randomized block design (RBD), with five treatment levels (concentration) and five replications. The results showed that insecticide with chlorpyrifine 500 g/l and sipermetrin 50 g/l at concentration 1.50 ml/l were able to suppress E. zinckenella and increase production.