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All Journal AGRIVITA, Journal of Agricultural Science
Celia dela Rosa Medina
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Agriculture, Biological Sciences & Forestry

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AGE STRUCTURE AND SEX RATIO OF THRIPS Scirtothrips dorsalis HOOD (Thysanoptera : Thripidae) ASSOCIATE WITH MANGO AGROECOSYSTEM IN EAST JAVA, INDONESIA Affandi, Affandi; dela Rosa Medina, Celia
AGRIVITA, Journal of Agricultural Science Vol 35, No 3 (2013)
Publisher : Faculty of Agriculture University of Brawijaya and Indonesian Agronomic Assossiation

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

A research aimed to investigate the age structure and sex ratio of S.  dorsalis Hood in  mango agroecosystem was conducted at PT. Trigatra Rajasa farm, Situbondo, East Java, Indonesia.   The research was started from April to May 2013.  A Completely Randomized Design, Analysis of Variance and Least Significant Difference were used to design, knew the variance and significantly different among the treatment, respectively.  Thirteen mango trees set in cross section were sampled and observed for the presence of S. dorsalis including weeds under the mango canopy and four cardinal directions of border.  A weekly sample was done for four weeks. The result showed that instar one and adult were preferred to associate with weeds under the mango canopy and borders compare to mango leaves except second instar. Further, observation was presented that all the age structures were given equal male female sex ratio.   Based on total population numbers, there wasnt significantly difference of age structure and sex ratio of S. dorsalis associate with weeds inside the orchard including mango leaves and borders.   Twenty seven species of weeds were discovered associate with mango agroecosystem and comprehensively discused based on the most dominance and preferred by S. dorsalis.  Key Words: S. dorsalis, age structure, sex ratio, mango, weeds.  
Development and Survivorship of Scirtothrips dorsalis Hood (Thysanoptera: Thripidae) in Different Growth Stages of Mango and Selected Weeds Affandi, Affandi; dela Rosa Medina, Celia; Velasco, Luis Rey Ibanez; Javier, Pio Arestado; Depositario, Dinah Pura Tonelete
AGRIVITA, Journal of Agricultural Science Vol 40, No 1 (2018): FEBRUARY
Publisher : Faculty of Agriculture University of Brawijaya in collaboration with PERAGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17503/agrivita.v40i0.1650

Abstract

The research objective was to quantify the development and survivorship rate of S. dorsalis in different phenological stages of mango and selected weeds. The research was conducted in the laboratory of PT. Trigatra Rajasa, Mango plantation in Ketowan, Arjasa, Situbondo, East Java, Indonesia from February to September 2015. The development and survivorship rate were done through observation of life span of S. dorsalis from egg to pupa. Analysis of Variance and Duncan Multiple Range Test (p = 0.05) with 5 replications were applied to ensure the significant differences among the treatments. The result showed that development and survivorship of Scirtothrips dorsalis were supported by mango flushes and flower as well as some weeds such as Leucania leucochepala, Ipomoea triloba, Achalypha indica, Desmanthus leptophyllus and Azadirachta indica as source of food. Achalypha indica was the most suitable host with development time (12.82 ± 0.21 days) and survivorship (33 %). Weed Tridax procumbent, Momordica charantia and Mimosa pudica were unable to provide the living requirement for immature developmental stage of S. dorsalis.
Population Dynamic of Scirtothrips dorsalis Hood (Thysanopetera: Thripidae) on Mango and Associated Weeds Under Low and Intensive Agricultural Practices Affandi Affandi; Celia dela Rosa Medina; Luis Rey Ibanez Velasco; Pio Arestado Javier; Dinah Pura Tonelete Depositario; Ellina Mansyah; Hardiyanto Hardiyanto
AGRIVITA, Journal of Agricultural Science Vol 41, No 3 (2019)
Publisher : Faculty of Agriculture University of Brawijaya in collaboration with PERAGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17503/agrivita.v41i3.2316

Abstract

Population dynamic information and its influence factors are basic need for the best insect strategic control. This research objective was to descript and compare thrips S. dorsalis population dynamic on mango and associated weeds under low and intensive cultural practices. Reseacrh was conducted in PT. Trigatra Rajasa mango plantation in Ketowan, Arjasa, Situbondo, East Java, Indonesia from February 2014 to January 2015. The investigation was done through observation of S. dorsalis number associate on each mango growth stages and weeds under the canopy of mango. Arithmetic and descriptive method were applied to ensure the population oscillations pattern among phenological stages of mango and weeds under mango tree canopy. Result showed that population fluctuation of S. dorsalis was determined by growth stages of mango trees and the availability of initial built up of population. Flush growth stage was the most preferred stage which had high input agricultural practices such as fertilizer and tree conditioning and was supported for more numbers of thrips. Weeds Desmanthus leptophyllus, Achalypha indica, Azadirachta indica and Tephrosia vogelii were functioning as breeding habitat for early built-up population on mango trees. Climate factors especially rainfall was also affected population fluctuation of S. dorsalis on mango trees and weeds.
AGE STRUCTURE AND SEX RATIO OF THRIPS Scirtothrips dorsalis HOOD (Thysanoptera : Thripidae) ASSOCIATE WITH MANGO AGROECOSYSTEM IN EAST JAVA, INDONESIA Affandi Affandi; Celia dela Rosa Medina
AGRIVITA, Journal of Agricultural Science Vol 35, No 3 (2013)
Publisher : Faculty of Agriculture University of Brawijaya in collaboration with PERAGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17503/agrivita.v35i3.326

Abstract

A research aimed to investigate the age structure and sex ratio of S.  dorsalis Hood in  mango agroecosystem was conducted at PT. Trigatra Rajasa farm, Situbondo, East Java, Indonesia.   The research was started from April to May 2013.  A Completely Randomized Design, Analysis of Variance and Least Significant Difference were used to design, knew the variance and significantly different among the treatment, respectively.  Thirteen mango trees set in cross section were sampled and observed for the presence of S. dorsalis including weeds under the mango canopy and four cardinal directions of border.  A weekly sample was done for four weeks. The result showed that instar one and adult were preferred to associate with weeds under the mango canopy and borders compare to mango leaves except second instar. Further, observation was presented that all the age structures were given equal male female sex ratio.   Based on total population numbers, there wasn't significantly difference of age structure and sex ratio of S. dorsalis associate with weeds inside the orchard including mango leaves and borders.   Twenty seven species of weeds were discovered associate with mango agroecosystem and comprehensively discused based on the most dominance and preferred by S. dorsalis.  Key Words: S. dorsalis, age structure, sex ratio, mango, weeds.  
Co-Authors Affandi Affandi Affandi Affandi Affandi Affandi Affandi Affandi Depositario, Dinah Pura Tonelete Dinah Pura Tonelete Depositario Ellina Mansyah Hardiyanto Hardiyanto Javier, Pio Arestado Luis Rey Ibanez Velasco Pio Arestado Javier Velasco, Luis Rey Ibanez