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INDONESIA
Jurnal Entomologi Indonesia
Published by Perhimpunan Entomologi Indonesia
ISSN : 18297722     EISSN : 20890257     DOI : -
Core Subject : Science, Agriculture,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology
Jurnal Entomologi Indonesia (JEI) publishes original research papers and short communications that covers the basic and applied aspect of insects and mites or other arthropods in agriculture, forestry, human and animal health, and natural resources and environmental management. The journal is published by Perhimpunan Entomologi Indonesia (Entomological Society of Indonesia). JEI was first published at the beginning of 2004 with twice per year in frequency on March and September. Since 2015, Jurnal Entomologi Indonesia has been published three times per year on March, July, and November.
Arjuna Subject : -
Articles 6 Documents
 1 
Search results for , issue "Vol 2 No 2 (2005): September" : 6 Documents clear
Pengaruh Bacillus Thuringiensis terhadap penggerek batang jagung Ostrinia Furnacalis (Lep. Pyralidae) Harnoto Harnoto
Jurnal Entomologi Indonesia Vol 2 No 2 (2005): September
Publisher : Perhimpunan Entomologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (815.084 KB) | DOI: 10.5994/jei.2.2.33

Abstract

The effect of Bacillus thuringiensis to the mortality of corn stemborer Ostrinia furnacalis (Lep. Pyralidae). The study was conducted at the laboratory of Bogor Research Institute for Agricultural Biotechnology and Genetic Resources during 2005. The objective of this study was to evaluate the effect of the dosages of Bacillus. thuringiensis var. aizawai and var. Kurstaki on the mortalities of larvae of corn stemborer Ostrinia furnacalis. Completely randomize design was used with seven treatments. Each treatment was repeated four time with ten larvae per replication. The treatments were three formulation dosages of B. thuringiensis var. aizawai, i.e. 0,5; 1,0; and 2,0 g/l, thee formulation dosages of B. thuringiensis var. Kurstaki, i.e. 0,5; 1,0; and 2,0 g/l, and untreated control. Second instar larvae of O. furnacalis was used in this study. B. thuringiensis was contaminated to the surface of artificial diet with a small paint brush. The result showed that B. thuringiensis var. kurstaki at the dose rate of 1,0 g/l was toxic to the test insect while B. thuringiensis var. aizawai at the dose rate of 2,0 g/l was toxic to the test insect B. thuringiensis var. kurstaki was more toxic than  B. thuringiensis var. aizawai to the corn stemborer.
Resistensi populasai hama bawang merah Spodoptera exigua (Lepidoptera: Noctuidae) terhadap klorfluazuron Abdi Negara
Jurnal Entomologi Indonesia Vol 2 No 2 (2005): September
Publisher : Perhimpunan Entomologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (999.419 KB) | DOI: 10.5994/jei.2.2.1

Abstract

Resistance of Onion Pest Spodoptera exigua (Lepidoptera: Noctuidae) Populations to Chlorfluazuron. The research was conducted from August 2001 until April 2002 in the Kalitiro Agriculture Training and Development Research Station, Gadjah Mada University. The objective of research was to determine the resistance level of Spodoptera exigua populations collected from the district of Sanden, Kretek, Wates, Temon, Panjatan, Wonosari, Panggang and Playen (all are in Yogyakarta Province) to chlorfluazuron insecticide. Research was conducted by dipping artificial diet about 30 seconds in insecticide solution and there are used test two hours after they were air dried. Based on the preliminary test, different concentrations were tested to determine the toxicity of the insecticide to each population. Third instar larvae (five days old) of the first generation were used in bioassays. Each larvae with its artificial diet was placed in a plastic cup (diameter 3,5 cm). Larval mortality was recorded at 72 hours after exposure. Data was analyzed using probit analysis to determine LC50 values. The result showed that the LC50 values of chlorfluazuron againsts eight population of S. exigua at 72 hours after exposure varied from 16,10 ppm (Panggang) to 84,76 ppm (Panjatan). The results suggested that all populations from Panggang, Playen, Kretek, Sanden, Wates, Wonosari and Temon were still susceptible to chlorfluazuron. Population from Panjatan indicated to be resistant to chlorfluazuron.
Pengaruh samping aplikasi deltametrin terhadap Artropoda predator penghuni permukaan tanah di pertanaman kedelai I Wayan Winasa; Aunu Rauf
Jurnal Entomologi Indonesia Vol 2 No 2 (2005): September
Publisher : Perhimpunan Entomologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1005.246 KB) | DOI: 10.5994/jei.2.2.39

Abstract

Side Effects of Deltamethrin Application to The Ground Surface Dwelling Predatory Arthropods on Soybean Field. Side effects of deltamethrin to the ground surface dwelling predatory arthropods were studied on soybean field in Cianjur during July to October 1998. Insecticide was applied 1-4 times. Predator abundance was observed by setting pitfall traps. The results showed that application of deltamethrin reduced the abundance of ground-surface predatory arthropods, especially lycosid and linyphiid spiders, carabid beetle and formicid. Reductions of predator abundance on the plots treated with deltamethrin were around 35% to 41%. There was no significant difference on the predator abundance among the plots treated with the insecticide at difference frequencies. Observations after application showed that predator abundance on the treated plots recovered one week after application. Deltamethrin application to the soybean with dense crown (38 and 52 days after planting) did not reduce predator abundance, especially within three day range after application. However, negative effects of deltamethrin application at early vegetative growth stage (10 days after planting) on the reduction of predator abundance continued by harvesting. The abundance of detritivorous arthropods was not affected by deltamethrin application.
Peran Brush Border Membrane Vesicle (BBMV) dalam proses infeksi Baculovirus Arman Wijonarko
Jurnal Entomologi Indonesia Vol 2 No 2 (2005): September
Publisher : Perhimpunan Entomologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (518.589 KB) | DOI: 10.5994/jei.2.2.8

Abstract

The Role of Brush Border Membrane Vesicle (BBMV) in The Baculovirus Infection. Although baculovirus becoming recognized as potential important agents for control pests, there are several important obstacles for commercial use insecticide. One important obstacle is their narrow host. The other obstacle is due to its development resistance, the phenomenon whereby host larvae become progressively more resistant to fatal infection as they age within and among instars. From practical stand point, this phenomenon impacts the effectiveness of baculovirus control programs against agricultural and forest insect pests that is necessary to adjust application levels in the response to the demography of the target insect population. Purified columnar cells derived from midgut of armyworm Pseudaletia separata was used for fusion assay and observed by means of fluorescence assay based on self-quenching of octadecylrhodamine B chloride (R18). Confocal microscopy of the columnar cells that had been combined with labeled virus showed that the fluorescence appeared on the apical part in the brush border membrane, this indicated that there was fusion between virus and the cells. Two dimensional SDS-PAGE and immunobloting assay confirmed that the receptor exist within the columnar cells.
Penghambatan aktivitas peneluran kumbang kacang hijau Callosobruchus Chinensis L. (Coleoptera: Bruchidae) oleh extrak sepuluh spesies tumbuhan Dadang Dadang; U. Undayasari
Jurnal Entomologi Indonesia Vol 2 No 2 (2005): September
Publisher : Perhimpunan Entomologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1389.326 KB) | DOI: 10.5994/jei.2.2.13

Abstract

Oviposition Deterrence of Bean Weevil, Callosobruchus chinensis L.(Coleoptera: Bruchidae) Treated with Ten Plant Extracts. Pest and Diseases attack agricultural products not only in the field but also in storehouse. Their attack causes decreasing both quantity and quality of stored materials. One of important stored product insect pests is Callosobruchus chinensis L. (Coleoptera: Bruchidae). Till now the effective strategy to control this insect pest is chemical control by using synthetic insecticides. The improper use synthetic insecticides causes some undesirable effects, so alternative strategist should be searched to controls insect pests in storehouse. One of the alternatives is by using plant materials as insect pests control agent. The aim of this study was to find out the oviposition deterrence of C. chinensis treated with ten plant which were extracted with methanol, hexane and ether. Oviposition deterrence was evaluated by choice and no-choice methods at 1,3 and 5% of extract concentration. Extract of Acorus calamus (methanol), A.calamus (hexane), A. calamus (ether), Illicium verum (ether), Pogostemon calbin (hexane), P. cablin (ether), Vetiveria zizanioides (hexane), and V. zizanioides (ether) were able to deter ovipostion activity of C. chinensis by more than 90% of deterrence. Further study should be conducted to isolate and identify the active compound and to make botanical insecticide formulation for practical use as a commercial product.
Peningkatan dan aktivitas enzim asetilkolinesterase pada nyamuk Aedes aegypti yang diseleksi dengan malation Dwi Jayanti Gunandini; P. B. Wicaksana
Jurnal Entomologi Indonesia Vol 2 No 2 (2005): September
Publisher : Perhimpunan Entomologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1259.928 KB) | DOI: 10.5994/jei.2.2.24

Abstract

The Elevated and Activity of Acetilcholinesterase Enzyme on Aedes aegypti Selected by Malathion. The aim of this research was to study the effect of selection by malathion on the activity level  Acetilcholinesterase enzyme on Aedes aegypti mosquitoes. Selection of Aedes aegypti larval by mean of malathion have been conducted for 20 generations. During the selection process time has been increased of concentration applied and exposure. For generation 0-5 (F0-F5), a concentration of 25 µl/l (24 ppm) was used to expose the larvae to malathion for five minutes. In generation 6-10 (F6-F10) the concentration has increased to 50 µl/l (48 ppm); in F11-F15 the concentration used was 100 µl/l (96 ppm) whereas in F16-F20 200µl/l (192 ppm) was used. Mosquito generations that would be regarded as representative and reference groups were F0, F5, F10, F15 and F20. The LC50 of F0, F5, F10, F15 and F20 was 0,025; 0,032; 0,042; 0,062 and 0,071 ppm respectively. Increases LT50 values was also observed in Aedes aegypti selected by malathion. The LT50 of F0, F5, F10, F15 and F20 generations was 7,9; 11,3; 18; 30,6 and 33,1 minutes respectively. The low levels of malathion resistance could be conferred by the elevated of α-esterase. The values of the α-esterase in F0, F5, F10, F15 and F20 were 0,155; 0,174; 0,203; 0,209 and 0,215 µmol/min/mg protein respectively. The acetilcholinesterase activities were also raised in F0, F5, F10, F15 and F20, the value of acetilcholinesterase activities were 20,35; 20,26; 23,14; 23,18 and 24,9%.

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