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Jurnal Entomologi Indonesia

jei
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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.

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Articles 6 Documents

Search results for , issue "Vol 3 No 1 (2006): April" : 6 Documents clear

Dinamika populasi wereng punggung putih, sogatella furcifera Stal (Hemiptera: Delphacidae) di jawa tengah Widiarta, I Nyoman; Wijay, E.S.; Sawada, Hiroichi
Jurnal Entomologi Indonesia Vol 3 No 1 (2006): April
Publisher : Perhimpunan Entomologi Indonesia

A field study was conducted at paddy fields in Petarukan and Pekalongan regencies of Central Java province during wet season crop 1989/90 and 1990/91 to elucidate population dynamic of whitebacked planthopper, Sogatella furcifera Stí¥l. Seven and three observation fields were set up in 1989/90 and the 1990/91, respectively. Cisadane rice cultivar was transplanted following the usual farmer's parctices except that no pesticide was applied. The population of the whitebacked planthopper and the brown planthopper, (Nilaparvata lugens Stí¥l) were sampled by using an insect suction catcher, a farmcop. Identification of generation was based on thermal constant required by the whitebacked planthopper to complete one generation and mean population density was calculated by graphical method. Two distinct seasonal population growth patterns were identified. The population with short population growth pattern completed four generations in one crop season in which their population density increased consecutively in two generations since immigrant generation, and thereafter decreased. The population with long population growth completed five generations in one crop season in which their population density increased consecutively in three generations, and thereafter decreased. The density of brachiptera adults determined 90% of the total population density. The proportion of brachiptera adults were not correlated with large nymphal density in both vegetative and generative stages of rice. The proportion of brachiptera adults showed significant negative linear regression with population density of the brown planthopper. Therefore, interspesific competition determined the proportion of wingform and population dynamics of the whitebacked planthopper.

Aktivitas residu protein Cry1Ac Pada lahan yang ditanami kapas transgenik-Bt di Bajeng dan Soppeng, Sulawesi Selatan Purnama Hidayat; Djoko Prijono
Jurnal Entomologi Indonesia Vol 3 No 1 (2006): April
Publisher : Perhimpunan Entomologi Indonesia

Soil samples were collected from each plot at the two field sites at 0, 1, 3, and 5 months after planting, and at one-month intervals after harvest for three months. Soil suspension from each sample was mixed with agar based diet (1 g soil/20 ml soil-diet mixture) then was presented to neonate larvae of H. armigera. Two reference standards were used, i.e. pure Cry1Ac protein (0.165 x 104 to 1.436 x 105 ng per ml of the proteindiet mixture) and non-Bt-soil spiked with Cry1Ac protein (0.11 x 104 to 9.573 x 104 ng per ml of the soil-diet-mixture). Larval mortality was recorded at 7 days of treatment. In both reference standards, mortality of H. armigera larvae occurred in a concentrationdependent fashion, i.e. larval mortality increased with the increase in Cry1Ac protein concentration, with LC50 of 0.95 x 104 and 1.65 x 104 ng/ml, respectively, for the pure protein and spiked non-Bt-soil standards. Result of the bioassay of soil samples from the field sites showed the residues from both transgenic cotton soils did not cause any mortality (0%) in the test insects. This indicates that the concentrations of Cry1Ac residue in soil at the study sites were very low (in the second standard, Cry1Ac at a concentration of 0.33 x 104 ng/ml caused about 10% larval mortality).

Pengaruh temephos terhadap perolehan telur nyamuk Aedes aegypti (L) di cipinang muara jakarta Mochammad Hasyimi; Suwarto Suwarto; Waluyo Waluyo; Mardiana Mardiana; Suyitno Suyitno; Sukijo Sukijo; Supriyono Supriyono
Jurnal Entomologi Indonesia Vol 3 No 1 (2006): April
Publisher : Perhimpunan Entomologi Indonesia

A study on the effect of abaticidal ovitrap on Aedes aegypti egg findings was carried out in Cipinang Muara, East Jakarta from October 1997 until January 1998. Twenty five houses were designed as treatment objects. Ovitrap were sit indoor and outdoor in each house. Seventy five houses were used as buffer. People in this area were trained on how to set up and to manage their ovitrap. Control area in the same "Rukun Warga (RW)" was selected and treated with the same way. The result has shown that egg number from the treated area has significantly reduced and less than the egg number in the control area. The mean the number of eggs found in the first year was 20.8 eggs, while in the second year was 38.8 eggs. The average ovitrap index (01) in the first year was 38.8 'Yo, while in the second year was 49.4 %. Abate did not affect the activity of oviposition and the number oflaid eggs.

Persebaran agens hayati Neochetina spp. (Coleoptera: Curculionidae) di jawa barat dan DKI jakarta Sapdi Sapdi; Damayanti Buchori; Utomo Kartosuwondo; S. Tjitrosemito; Bandung Sahari
Jurnal Entomologi Indonesia Vol 3 No 1 (2006): April
Publisher : Perhimpunan Entomologi Indonesia

The establishment of Neochetina spp. as biocontrol agent of waterhyacinth are related to the weevil’s ability to disperse and to increase their population sizes. The objective of this research was to study the distribution and abundance of Neochetina spp. at several areas in West Java and DKI Jakarta. The field research was done in several freshwater ecosystem infested by waterhyacinth, including Cibinong and Lido lakes in Bogor, irigation canal in Karawang, Muara Angke Sanctuary in North Jakarta, and Citarum Hulu river in Purwakarta, during April to August 2004. Coordinate and elevation of the research sites where N. eichhorniae and N. bruchi found were reported, while their abundances were observed by direct hand-collection technique. The results of the research showed that N. eichhorniae was widely distributed and established in most sampling sites, except in Karawang, whereas N. bruchi was not found in any sampling sites. Our observations also indicated that N. eichhorniae was distributed passively so that the weevil couldn’t colonize isolated habitats or locations.

Keefektivan Beauveria bassiana (Bals.) Vuill. isolat Indigenous pagaralam sumatera selatan pada media beras terhadap larva Plutella xylostella Linn. (Lepidoptera: Yponomeutidae) Yulia Pudjiastuti; Erfansyah Erfansyah; Siti Herlinda
Jurnal Entomologi Indonesia Vol 3 No 1 (2006): April
Publisher : Perhimpunan Entomologi Indonesia

The objective of study was to investigate the effectiveness of Beauveria bassiana isolate cultured in half-ripe rice media against third-instar larvae of Plutella xylostella. The research used 10 isolates consisted of 4 isolates that were originnally collected from Pagaralam i.e. PD1 (isolated from P. xylostella cadaver), PD2, PD8, PD9B (from Crysodeixis chalcites cadaver), and 6 isolates from other areas as comparison, i.e. CCW3 (from Crysodeixis chalcites cadaver), BBL (from Hypothenemus hampei cadaver), CH (from Conomorpha cramerella cadaver), CPJW (from H. hampei cadavi), WC (from Nilaparvata lugens cadaver), and WSJT (from Leptocorixa acuta cadaver). The parameters that were measured were mortality of larvae, time of death and behaviour of larvae after application. Result of the test showed that B. bassiana isolated from L. acuta (WSJT isolate) caused the highest mortality i.e. 73.34 %, with the highest spore density 5.6x107 spore ml-1 (in half-rice media) and 3.0x107 spore ml-1 (GYA media). The lowest LT50 was 19.27 hours, and was obtained from the application of PD9B. After application of B. bassiana, the behaviour of larvae was slightly change from a healthy one to less in consuming of food and then die.

Identifikasi kutukebul (Hemiptera: Aleyrodidae) dari beberapa tanaman inang dan perkembangan populasinya Purnama Hidayat; Yuliani Yuliani; Dewi Sartiami
Jurnal Entomologi Indonesia Vol 3 No 1 (2006): April
Publisher : Perhimpunan Entomologi Indonesia

Whiteflies (Hemiptera: Aleyrodidae) can cause direct and indirect damages on plants, especially vegetables. There is only limited information regarding taxonomy and population dynamic of whiteflies attacking vegetables in Indonesia. This research is conducted to identify species of whitefly collected from chili pepper, tomato, and soybean, and to study their population dynamic. The information gathered from these studies will be useful to support whitefly management in the field. Based on morphology identification of the puparium collected directly from the host plants, there were four species of whitefly identified from chili pepper, tomato, and soybean in Bogor, Cianjur, and Sukabumi, i.e. Bemisia tabaci, Aleurodicus dispersus, Trialeurodes vaporariorum, and Dialeurodes sp. The presence of B. tabaci on chili pepper and tomato was associated with virus infection that causes yellowing and leaf curl disease. This population of B. tabaci tended to increase along with plant growth and generally reached the highest population when the plant was 60-70 days after planting.

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