{"title":"Efektivitas Ekstrak Serai Wangi (Cymbopogon nardus) sebagai Insektisida Nabati untuk Pengendalian Larva Crocidolomia pavonana Zell. pada Tanaman Kubis","authors":"Oldi F. Kotambunan, Cristina L Salaki, D. Tarore","doi":"10.35791/jef.v1i1.27161","DOIUrl":"https://doi.org/10.35791/jef.v1i1.27161","url":null,"abstract":"One of the pests that attack cabbage plants is Crocidolomia pavonana Zell. As an agrarian country, Indonesia has various types of plants that can be used as plant-based insecticides. Fragrant lemongrass plants (Cymbopogon nardus) is one type of plant that can be used as a vegetable insecticide. This study aims to analyze the mortality of C. Pavonana larvae. and know the effectiveness of C. nardus extract in controlling C. Pavonana larvae. . The research was conducted at the Center for the Protection and Testing of Food Crops and Horticulture in North Sulawesi Province, for 6 (six) months from November to May 2019. Using a Completely Randomized Design (CRD) with 5 treatments and 4 replications and 1 control as a comparison. The research process includes preparation of tools and materials, propagation of test insects, planting cabbage as feed, extraction processes and so on. The results showed that C. nardus extract was effective in controlling C. Pavonana larvae. The highest percentage of mortality (mortality) was at a treatment concentration of 40% with a mortality rate of 93,3% on the third day of observation. analysis of variance shows that the use of fragrant lemongrass (C. nardus) has a very significant effect on mortality of C. pavonana larvae.","PeriodicalId":234534,"journal":{"name":"JURNAL ENFIT : Entomologi dan Fitopatologi","volume":"85 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-01-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134019663","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Femmy Nova Ch. Pangaila, B. A. Pinaria, C. L. Salaki
{"title":"Lama Penyimpanan Ekstrak Buah Bitung (Barringtonia asiatica L. ) terhadap Mortalitas Hama Crocidolomia pavonana F. pada Tanaman Kubis","authors":"Femmy Nova Ch. Pangaila, B. A. Pinaria, C. L. Salaki","doi":"10.35791/jef.v1i1.27164","DOIUrl":"https://doi.org/10.35791/jef.v1i1.27164","url":null,"abstract":"One way to reduce various problems due to the use of synthetic insecticides is to develop effective and environmentally friendly means of control by using insecticides derived from plants (plant-based insecticides). The aim of this study was to study the storage duration of B. asiatica beetroot (seed) extracts stored at 100C (refrigerator) against mortality of C. paconana pests. The study was conducted at the Center for the Protection and Testing of Food Crops and Horticulture in North Sulawesi Province, for 6 (six) months from November 2018 to May 2019. Using a Completely Randomized Design (CRD) with 7 (Seven) treatment and 5 (Five) replications . The treatment is the storage time of bitung fruit (seed) extract (0 days, 6 days, 12 days, 18 days, 24 days, 30 days and 36 days). The results showed that the feeding activity and the motion activity of C. pavonana larvae after application with the extract of B. asiatica greatly decreased and eventually died. The results showed a relationship between the fast and long days of storage of B. asiatica extracts and mortality of C. pavonana larvae, the faster the application of B. asiatica extracts, the higher the mortality rate of test insects. B. asiatica extracts stored at 100C (refrigerator) for up to 36 days show mortality above 50%, this proves that the application of extracts stored at 100C (refrigerator) is effective in controlling C. pavonana larvae test insects.","PeriodicalId":234534,"journal":{"name":"JURNAL ENFIT : Entomologi dan Fitopatologi","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-01-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131410331","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Identifikasi Morfologi lalat Buah Bactrocera spp. (Diptera :Tephritidae) di Kabupaten Minahasa","authors":"M. Lengkong, C. S. Rante","doi":"10.35791/jef.v1i1.27169","DOIUrl":"https://doi.org/10.35791/jef.v1i1.27169","url":null,"abstract":"The many types of fruit flies and the presence of vague traits between species cause identification and characteristics of these insects often encounter difficulties. The problem of how the morphological character of the fruit fly Bactrocera spp. can be determined to the species level precisely and accurately. The purpose of this research is to study and identify the types of fruit flies Bactrocera spp. based on morphological characters. The identification stage is carried out by determining the morphological characteristics of the head, thorax, wings and abdomen for each species of Bactrocera spp. The results of identification of several species of fruit flies Bactrocera to the level of species based on morphological characteristics of adult insects found five species of Bactrocera are Bactrocera umbrosa (Fabricius), Bactrocera albistrigata (de Meijere), Bactrocera carambolae (Drew and Hancock), Bactrocera dorsalis (Hendel), and Bactrocera tau (Walker).","PeriodicalId":234534,"journal":{"name":"JURNAL ENFIT : Entomologi dan Fitopatologi","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123466471","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Pengendalian Penyakit Karat Putih (Puccinia horiana) dengan Menggunakan Bakteri Antagonis Pada Tanaman Krisan","authors":"K. Lala, M. Tulung","doi":"10.35791/jef.v1i1.27170","DOIUrl":"https://doi.org/10.35791/jef.v1i1.27170","url":null,"abstract":"The study aims to analyze the techniques of controlling white rust, Pucinia horiana by using antagonistic bacteria. The results showed that all antagonistic microbes tested for controlling white rust (P. horiana) showed good ability to suppress because all were significantly different from the control and Pseudomonas flourescens was proven to be the most effective at suppressing the development of rust disease which was equivalent to the use of synthetic chlorotalonyl fungicides. Besides that, P. flourescens application increases plant height growth and quality of chrysanthemum flower caused by the ability of the two microbes as Plant Growth Promoting Rhizobacteria.","PeriodicalId":234534,"journal":{"name":"JURNAL ENFIT : Entomologi dan Fitopatologi","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127317184","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Serangga Pengunjung Bunga Pisang Kepok di Kabupaten Minahasa Selatan sebagai Pembawa Ralstonia solanacearum Filotipe IV (Penyebab Penyakit Darah Pisang)","authors":"V. B. Montong, C. L. Salaki","doi":"10.35791/jef.v1i1.27165","DOIUrl":"https://doi.org/10.35791/jef.v1i1.27165","url":null,"abstract":"The scope of this study is the management of insects that carry Ralstonia solanacearum Phylotype IV (the cause of banana blood disease). The objectives of this study were: (1) to identify insects in Kepok banana flowers, and (2) to identify insects in Kepok banana flowers that act as carriers of R. solanacearum Phylotype IV, and the population density of these bacteria is carried by each insect. The sampling of banana plantations was carried out based on pusposive sampling method. Insect collection uses modified insect nets, and insect collection uses modified insect nets, and insects are morphologically identified. This bacterial isolation was carried out based on the cup pour method on NA + TZC media. Inoculation of bacterial isolates was carried out by injection method on the tip of the old Kepok banana. The insect species of visitors to the banana flower in South Minahasa District were Oscinella sp., Aphis mellifera, Chelisoches morio, and Dolichoderus sp. All species of visitors to the Kepok banana flower in South Minahasa carry Ralstonia solanacearum Phylotype IV. Oscinella sp., A.mellifera, C.morio, and Dolichoderus sp. each carrying 17,636.39, 15,666.67, 113.33, and 2,400.00 CFU mL.","PeriodicalId":234534,"journal":{"name":"JURNAL ENFIT : Entomologi dan Fitopatologi","volume":"148 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127720911","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}