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All Journal Jurnal Ilmu Dasar Jurnal Agro Jurnal Biologi Tropis
Siriyah, Siti Latifatus
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Control & Systems Engineering Immunology & microbiology Mathematics

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Study of Insect Diversity in Rice Agroecosystem in Karawang West Java Siriyah, Siti Latifatus; Khamid, Miftakhul B.R.; Bayfurqon, Fawzy M
Jurnal ILMU DASAR Vol 19 No 1 (2018)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (3222.364 KB) | DOI: 10.19184/jid.v19i1.5619

Abstract

Insects were collected from rice fields in Karawang West Java. Since insects are dominant in Rice field, their role in the ecosystem are important regarding the rice production. Therefore, the occurance of insect species and their role in ecosystem are important to understand. The aim of this reasearch was to study the insect occurance in rice field in Karawang to obtain the potential candidate for biological control agent. The insects were collected using sweep net, pit fall trap and light trap. Nine insect orders were collected and 49 morphospecies were identified including insect pest, parasitoids, predator, tourist and detritivore. Paederus sp., Cyrtohinus and Micraspis sp., were the most abundant entomophagous insect that is potential candidate for biological control agent in Karawang. Keywords: insect, insect diversity, rice fields, karawang
Insect Species Composition in Local Durian Loji Plantation in Karawang, West Jawa Sabrina, Hanifa Khansa; Siriyah, Siti Latifatus; Saputro, Nurcahyo Widyo Daru
Jurnal Biologi Tropis Vol. 25 No. 3 (2025): Juli-September
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v25i3.9193

Abstract

Durian (Durio zibethinus) belong to a popular fruits in Southeast Asia and is widely distributed across various regions, particularly in Indonesia. Karawang regency, as one of the part of west java province, is one of the producers of local durian, known as durian loji. Successful durian cultivation is influenced by various biotic factors, among which insect biodiversity plays a critical role in pollination, pest control, and nutrient cycling. However, comprehensive studies on insect diversity in durian agroecosystems, particularly in Karawang, remain scarce. This study aimed to explore the insect community structure within Loji durian plantations to provide baseline data on species composition and ecological roles. Field sampling was conducted using three methods: sweep nets for aerial insects, beating sheets for foliage-dwelling species, and pitfall traps for ground-active arthropods. A total of 29 insect morphospecies from 9 orders were identified, including Coleoptera, Hymenoptera, Diptera, Dermaptera, Orthoptera, Hemiptera, Odonata, Mantodea, and Lepidoptera. Our findings show that all morphospecies occupied various trophic levels, including herbivores, predators, and decomposers. These findings highlight the ecological significance of insects in maintaining durian plantation health and suggest the need for sustainable farming practices to conserve beneficial species while managing pests. Further research should investigate the seasonal variations and the impact of agricultural practices on insect community structure and diversity.
Insect Diversity and Pest Attack Intensity of Leaf Beetle (Epilachna sparsa) on Purple Eggplant (Solanum melongena L.) with the Application of Botanical Pesticides Sopandi, Deni; Siriyah, Siti Latifatus; Laksono, Rommy Andhika; Saputro, Nurcahyo Widyo Daru
Jurnal Biologi Tropis Vol. 25 No. 4 (2025): Oktober-Desember
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v25i4.10179

Abstract

The extensive use of synthetic pesticides has been shown to adversely affect ecosystems, including the diversity of insect populations. As a result, there is an increasing demand for environmentally sustainable pest control methods, such as botanical pesticides. This study aims to evaluate the diversity of insect species as well as the attack intensity of the leaf beetle (Epilachna sparsa) on purple eggplant (Solanum melongena L.) through the application of botanical pesticides. The research used a single-factor Group Random Design (RAK) with five replicates and five treatment groups: control, papaya leaf, neem leaf, a combination of papaya and neem leaves, and synthetic pesticide. Insect sampling was conducted using types of trap: pitfall traps, yellow sticky traps, and sweep nets, while the collected data were analyzed using analysis of variance, followed by a Least Significant Difference (LSD) test at the 5% significance level. The findings revealed that botanical pesticides did not have a significantly different effect on insect diversity or pest attack intensity, with the Shannon-Wiener diversity index ranging from 2.08–2.29, indicating a moderate level of diversity (1 < H’ < 3). Notably, the treatment using papaya leaf extract resulted in the lowest damage intensity by leaf beetle (E. sparsa), ranging from 15.83% to 20.83%. These results suggest that botanical pesticides, particularly papaya leaf extract, can reduce pest damage while maintaining ecological balance, as reflected in the shifts in abundance of various insect orders and their population dynamics.
Insect Diversity and Intensity of Leaf Caterpillar (Plutella xylostella) Attacks on Nita F1 Variety Kailan Plants with the Application of Several Vegetable Pesticides Fitriani, Laela; Siriyah, Siti Latifatus; Laksono, Rommy Andhika
Jurnal Biologi Tropis Vol. 25 No. 4b (2025): Special Issue
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v25i4b.10637

Abstract

Pest attacks are an important problem in vegetable cultivation practices. Pest control using synthetic pesticides is still widely used, but excessive use has a negative impact on human health and the environment, one of which is insect diversity. As an alternative to pest control, pesticides can be used with active ingredients that are secondary metabolites from plants or commonly called plant pesticides. The purpose of this study is to evaluate the influence of vegetable pesticides on insect diversity and the intensity of leaf caterpillar pest attacks on kailan plants. The method used is an experimental method using a single-factor Random Group Design (RAK) consisting of 5 treatments and 5 replicates. These treatments include K (Control), PP (Papaya Leaf Pesticide), PM (Neem Leaf Pesticide), PB (Babanandan Leaf Pesticide), and PS (Synthetic Pesticide). Insect sampling was done 4 times at 7-28 hst with an interval of 7 days using slope pifall traps, yellow board traps and insect nets. The data was analyzed using ANOVA variety analysis and a follow-up test of BNT at 5%.  The results of the variance analysis showed that the PP treatment was able to maintain diversity with an index value of H'= 2.689 and an abundance of 369.800. PP treatment gave the lowest caterpillar attack intensity value ranging from 0.833% – 15,000%, which is a plant-based pesticide treatment with results close to synthetic pesticide treatment. Therefore, papaya leaf plant pesticides can be recommended as an alternative pesticide to maintain diversity and suppress the intensity of pest attacks in kailan cultivation.
Respon mortalitas dan pertumbuhan nimfa menjadi imago wereng batang cokelat (Nilaparvata lugens Stål.) terhadap lima jenis insektisida pada beberapa populasi di pulau Jawa lintang cahya bhekti; siriyah, Siti latifatus; azizah, elia; Irfan, Budi
Jurnal AGRO Vol. 12 No. 2 (2025)
Publisher : Jurusan Agroteknologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/j.agro.51032

Abstract

Wereng batang cokelat (Nilaparvata lugens Stål.) merupakan hama utama padi yang menyebabkan gejala hopper burn dan menjadi vektor penyakit virus. Pengendalian dengan insektisida masih menjadi pilihan utama petani, namun efektivitasnya sangat dipengaruhi oleh riwayat penggunaan di lapangan. Penelitian ini bertujuan mengevaluasi pengaruh beberapa insektisida (fenobucarb, triflumezopyrim, pymetrozine, imidakloprid, dan nikotin) terhadap mortalitas nimfa serta persentase keberhasilan perubahan nimfa menjadi imago dari enam populasi N. lugens (lima lapangan dan satu standar laboratorium). Percobaan dilakukan menggunakan rancangan split plot dengan tiga ulangan, dan data dianalisis menggunakan ANOVA serta uji lanjut DMRT pada taraf 5%. Hasil penelitian menunjukkan bahwa fenobucarb, triflumezopyrim, dan pymetrozine memberikan mortalitas tinggi (>80%) sekaligus menekan keberhasilan nimfa menjadi imago (<12%). Imidakloprid menunjukkan efektivitas rendah dengan mortalitas hanya 31,2–45,7% dan keberhasilan imago >50%, mengindikasikan adanya ketahanan pada reseptor nikotinat asetilkolin. Nikotin menghasilkan mortalitas sedang (55,8–73,4%) dengan imago 25,6–38,2%, yang kurang presisten namun lebih ramah lingkungan. Perbedaan antar lokasi menunjukkan bahwa populasi dari Karawang dan Indramayu lebih toleran terhadap perlakuan insektisida dibanding populasi lainnya. Hasil ini menegaskan bahwa evaluasi insektisida perlu mempertimbangkan mortalitas dan keberhasilan nimfa menjadi imago sebagai parameter subletal untuk mendukung strategi Pengendalian Hama Terpadu (PHT) yang berkelanjutan. ABSTRACT The brown planthopper (Nilaparvata lugens Stål.) is a major rice pest that causes hopper burn symptoms and acts as a vector for viral diseases. Control with insecticides remains the primary option for farmers, but its effectiveness is greatly influenced by the history of use in the field. This study aimed to evaluate the effect of several insecticides (fenobucarb, triflumezopyrim, pymetrozine, imidacloprid, and nicotine) on nymph mortality and the percentage of successful nymph-to-adult emergence from six populations of N. lugens (five field populations and one laboratory standard population). The experiment was conducted using a split-plot design with three replicates, and the data were analyzed using ANOVA and DMRT follow-up tests at a 5% level. The results showed that fenobucarb, triflumezopyrim, and pymetrozine caused high mortality (>80%) and suppressed the success rate of nymphs becoming adults (<12%). Imidacloprid showed low effectiveness with mortality of only 31.2–45.7% and adult emergence >50%, indicates resistance to acetylcholine nicotinic receptors. Nicotine produced moderate mortality (55.8–73.4%) with adult emergence of 25.6–38.2%, less persistent but more environmentally friendly. The result indicate that population from Karawang and Indramayu are more tolerant to insecticide treatment than other populations. These results confirm that insecticide evaluation should consider mortality and nymph-to-adult emergence success as sublethal parameters to support control strategies.
Co-Authors Bayfurqon, Fawzy M Elia Azizah, Elia Fitriani, Laela Irfan, Budi Khamid, Miftakhul B.R. Laksono, Rommy Andhika lintang cahya bhekti Sabrina, Hanifa Khansa Saputro, Nurcahyo Widyo Daru Sopandi, Deni