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All Journal Agrotrop : Journal on Agriculture Science
I NYOMAN WIJAYA
Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana, Jln. PB. Sudirman Denpasar Bali 80232, Indonesia
Agriculture, Biological Sciences & Forestry

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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

Abstract

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%.
Kelimpahan Populasi Liriomyza spp. (Diptera: Agromyzidae) pada Sentra Tanaman Tomat dan Kentang di Bali GUSTI AYU INTAN ARI LESTARI; I NYOMAN WIJAYA; DWI WIDANINGSIH
Agrotrop : Journal on Agriculture Science Vol 13 No 2 (2023)
Publisher : Fakultas Pertanian Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/AJoAS.2023.v13.i02.p07

Abstract

Population Abundance of Liriomyza spp. (Diptera: Agromyzidae) at the Tomato and Potato Center in Bali. The study aims to understand the structure of the community, population, and to determine the relationship between population groups of Liriomyza spp. on tomato and potato plants in Bali. The research was conducted from September 2021 to February 2, 2022, at an altitude of 750-1250 masl, located in Tabanan Regency, Buleleng Regency, Badung Regency and Bangli Regency. The sampling method was purposive and the number of samples taken was 150-250 leaves per location. Identification of Liriomyza spp. carried out in the Laboratory of Integrated Pest Management, Faculty of Agriculture, Udayana University. The results showed that the population of Liriomyza spp. on various tomato and potato crops in the medium and highlands of Bali. The community structure of Liriomyza spp. varied on each plant in the medium and highlands in Bali, with a species diversity index and a low population index and moderate dominance index. The results showed that the population relationship of Liriomyza spp. on tomato and potato plants in Bali from the results of the Paired Sample T Test showed that the population of liriomyza spp. higher in tomato plants than in potato plants.
Co-Authors DWI WIDANINGSIH GUSTI AYU INTAN ARI LESTARI I Wayan Supartha PUTU SUSY LISTYAWATI