Jurnal Entomologi Indonesia http://jurnal.pei-pusat.org/index.php/jei <p><strong>Jurnal Entomologi Indonesia </strong>(<a href="https://portal.issn.org/resource/ISSN/1829-7722#">P-ISSN: 1829-7722</a>; <a href="https://portal.issn.org/resource/ISSN/2089-0257">E-ISSN: 2089-0257</a>) is an Indonesian-based scientific journal, published by the <a href="http://pei-pusat.org/">Entomological Society of Indonesia</a>. JEI is issued every March, July, and November of each year. It publishes original research article, reviews, and short communications covering research results in the field of tropical entomology. The JEI was founded in 2004 and is now in its 18th year. The journal is supported by the <a href="http://pei-pusat.org/">Entomological Society of Indonesia</a> in collaboration with the <a href="https://ptn.ipb.ac.id/cms/en/home">Department of Plant Protection</a>, Faculty of Agriculture, IPB University.</p> <p>JEI is an open-access, peer-reviewed journal that has been Accredited (2022-2026) base on the Ministerial Decree of the Minister of Research and Technology/Head of National Research and Innovation Agency of the Republic of Indonesia No. 105/E/KPT/2022</p> <p>The JEI has been registered in Crossref, DOAJ, <a href="https://sinta.kemdikbud.go.id/journals/profile/1058" target="_blank" rel="noopener">SINTA Rank 2</a>, Google Scholar, Portal Garuda, CiteFactor, and other scientific databases. </p> Perhimpunan Entomologi Indonesia en-US Jurnal Entomologi Indonesia 1829-7722 <p>Authors who publish with this journal agree to the following terms:</p> <ol> <li>Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a <a href="http://creativecommons.org/licenses/by/4.0/" rel="license">Creative Commons Attribution 4.0 International License</a> that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.</li> <li>Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.</li> <li>Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See <a href="http://opcit.eprints.org/oacitation-biblio.html" target="_new">The Effect of Open Access</a>).</li> </ol> The characterization of Apis cerana and Apis mellifera mrjp2 gene in Indonesia and the phylogeny relationship with mrjp family genes http://jurnal.pei-pusat.org/index.php/jei/article/view/812 <p>The <em>major royal jelly protein 2</em> (<em>mrjp2</em>) gene is one of the molecular markers that can discriminate between <em>Apis cerana</em> Fabricius and <em>A. mellifera </em>Linnaeus. Due to the lack of <em>mrjp</em>2 gene sequences registered in GenBank for Indonesian <em>A. cerana</em> and <em>A. mellifera</em>, DNA characterization and bioinformatics analysis were needed. This research aimed to characterize the exon-intron organization of <em>mrjp2</em> genes for both Indonesian bee species and analyze the phylogenetic relationship with other <em>mrjp</em> family genes. DNA samples of <em>Apis cerana</em> and <em>A. mellifera,</em> collected from Bogor, were amplified using MF-MR primer at annealing temperatures of 47 <sup>o</sup>C and 50 <sup>o</sup>C, respectively. The length of <em>A. cerana</em> and <em>A. mellifera</em> DNA sequences were 579 and 597 bp, respectively. The DNA sequences of both species were comprised of partial exons 1, introns 1, exons 2, introns 2, and partial exon 3. The number of putative amino acids of <em>A. cerana</em> and <em>A. mellifera</em> <em>mrjp</em>2 genes were 111 and 123, respectively. We confirmed that the partial MRJP2 putative amino acids of both honey bees belong to the MRJP family and contained the peptide signal in the 14 first amino acid sites. Nucleotide variation of <em>the mrjp2</em> gene in <em>A. cerana</em> was higher than <em>A. mellifera</em>. Phylogenetic tree construction showed that <em>A. cerana</em> and <em>A. mellifera </em>form a monophyletic clade with the <em>A. mellifera</em> <em>mrjp7</em> gene and another <em>mrjp</em> family gene clustered as reported in a previous study.</p> Nurul Insani Shullia Tia Vina Febiriani Rika Raffiudin Candra Widjaja Tri Atmowidi Copyright (c) 2024 Nurul Insani Shullia, Tia Vina Febiriani, Rika Raffiudin, Candra Widjaja, Tri Atmowidi https://creativecommons.org/licenses/by/4.0 2024-04-30 2024-04-30 21 1 1 15 10.5994/jei.21.1.1 The effect of maize plants as a repellent for Bemisia tabaci (Gennadius) on chili plants http://jurnal.pei-pusat.org/index.php/jei/article/view/805 <p><em>Bemisia tabaci </em>(Gennadius) is crital pest of chili plants. Besides using chemical insecticides to control <em>B. tabaci</em>, the actions that can be taken for <em>B. tabaci</em> management include applying repellent compounds. This research aims to study the potential of various commercial corn varieties in producing repellent compounds for <em>B. tabaci</em>. The method used in this research involved testing the response of <em>B. tabaci</em> using a Y tube olfactometer and GCMS analysis on varieties P-21, Bisi-18, NK-212, and Pertiwi 3 on a laboratory scale. Volatile compounds were collected from corn plants aged 3–10 weeks after planting (WAP). The results showed that Bisi-18, P-21, NK-212, and Pertiwi 3 maize exhibited repellency against <em>B. tabaci</em>. The highest repellency for all corn varieties was observed at 10 WAP. The P-21 variety exhibited 80% repellency, followed by Pertiwi 3 and Bisi-18 with 78% repellency, while NK-212 showed the weakest repellencyat 60%. Results from volatile compounds identification of each maize varieties demonstrated revealed several compounds with repellent properties against <em>B. tabaci</em>, including 9-otadecenoic acid (Z)-, 9-octadecenamide, (Z)-, delta-guaiene, alpha-guaiene, beta caryophyllene, and patchouli alcohol. Using maize plants to manage <em>B. tabaci</em> has the potential to be an environmentally friendly management technique. Further research is needed on <em>B. tabaci</em> management technique to achieve a more effective and efficient combination.</p> Witjaksono Witjaksono Alan Soffan Muhammad Aulia Akbar Copyright (c) 2024 Witjaksono, Alan Soffan, Muhammad Aulia Akbar https://creativecommons.org/licenses/by/4.0 2024-06-18 2024-06-18 21 1 16–22 16–22 10.5994/jei.21.1.16 Pengaruh pemberian sampah organik terhadap pertumbuhan dan kandungan astaxanthin pada pupa black soldier fly (Hermetia illucens (Linnaeus)) http://jurnal.pei-pusat.org/index.php/jei/article/view/815 <p>Black soldier flies (<em>Hermetia illucens</em> (Linnaeus)) or BSF are insects that process organic waste, with larvae rich in nutrients and potential as an alternative protein source for food and feed. Astaxanthin, an antioxidant found in plants, algae, and crustaceans, is also assumed to be present in insects like BSF. This study examined the impact of feeding different organic wastes on BSF larval growth and astaxanthin content in its pupae. The experimental design involved four treatments: fruit and vegetable scraps (BS), tofu pulp (AT), rice leftovers (N), and a mix of fruit and vegetable scraps, tofu pulp and rice left-over (C), with animal feed T51 as control. Each treatment was repeated three times. Growth parameters of BSF such as weight, length, and larval characteristics, along with the chemical content of pupae, including astaxanthin, were measured. Pupae were extracted using a triphasic maceration method with n-heptane, ethyl acetate, acetonitrile, butanol-l, and distilled water. Compound identification was done using terpenoid qualitative tests, thin layer chromatography (TLC), and liquid chromatography-mass spectrometry (LC-MS). The findings revealed that fruit and vegetable scraps (BS) significantly increased larval body size, with a weight of 0.09 ± 0.04 grams/larvae and a length of 1.49 ± 0.31 cm/larvae. LC-MS analysis detected lutein derivatives, anisodamine, resveratrol derivatives, dehydroarginine, and astaxanthin derivatives with a molecular mass of 597.23 m/z in BSF larvae fed on fruit and vegetable scraps.</p> Arkhey Sidauruk Aniek Prasetyaningsih Kukuh Madyaningrana Copyright (c) 2024 Arkey Sidauruk, Aniek Prasetyaningsih, Kukuh Madyaningrana https://creativecommons.org/licenses/by/4.0 2024-06-04 2024-06-04 21 1 23–34 23–34 10.5994/jei.21.1.23