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All Journal Biodiversitas Journal of Biological Diversity
Chandra Irsan
Department of Plant Pests and Diseases, Faculty of Agriculture, Universitas Sriwijaya. Jl. Raya Palembang-Prabumulih Km 32, Indralaya, Ogan Ilir 30662, South Sumatra, Indonesia
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology

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Impact of mycoinsecticides and abamectin applications on species diversity and abundance of aquatic insects in rice fields of freshwater swamps of South Sumatra, Indonesia Siti Herlinda; Monica Alesia; Susilawati Susilawati; Chandra Irsan; Hasbi Hasbi; Suparman Suparman; Erise Anggraini; Arsi Arsi
Biodiversitas Journal of Biological Diversity Vol. 21 No. 7 (2020)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d210727

Abstract

Abstract. Herlinda S, Alesia M, Susilawati, Irsan C, Hasbi, Suparman, Anggraini E, Arsi. 2020. Impact of mycoinsecticides and abamectin applications on species diversity and abundance of aquatic insects in rice fields of freshwater swamps of South Sumatra, Indonesia. Biodiversitas 21: 3076-3083. Aquatic insects in rice fields generally are predators of rice insect pests. The application of insecticides may reduce the abundance and species diversity of these predators. This study aimed to determine the impact of mycoinsecticides and abamectin application on species diversity and abundance of aquatic insects in rice fields. Mycoinsecticides were made from Beauveria bassiana s.l., Metarhizium anisopliae s.l. and Cordyceps militaris s.l. with carrier from shrimp shell flour compost extract, vegetable oil, and Tween®. The treatments were the mycoinsecticides and abamectin. The results showed there were eight aquatic insects species obtained in this study, i.e. unidentified Dytiscidae, Micronecta sp., Mesovelia sp., Ranatra sp., Anisops sp., Microvelia sp., unidentified species of Veliidae, and Orthetrum sp. belong to 7 families (Dytiscidae, Corixidae, Mesoveliidae, Nepidae, Notonectidae, Veliidae, Libellulidae), and three orders (Coleoptera, Hemiptera, and Odonata). All of the species were predatory insects. The application of mycoinsecticides did not reduce the abundance and species diversity of the aquatic predatory insects, but the application of abamectin reduced the abundance and species diversity of the predators. The highest insect species diversity was in the plots applied with C. militaris s.l., followed by the B. bassiana s.l. and M. anisopliae s.l. plots and the lowest one was found in the abamectin plot. So, the application of mycoinsecticides from B. bassiana s.l., M. anisopliae s.l. and C. militaris s.l. is safe for the aquatic predatory insects and to control rice insect pests than that of abamectin.
Community structure of arboreal and soil-dwelling arthropods in three different rice planting indexes in freshwater swamps of South Sumatra, Indonesia Tili Karenina; Siti Herlinda; Chandra Irsan; Yulia Pujiastuti; Hasbi Hasbi; Suparman Suparman; Benyamin Lakitan; Harman Hamidson; Abu Umayah
Biodiversitas Journal of Biological Diversity Vol. 21 No. 10 (2020)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d211050

Abstract

Abstract. Karenina T, Herlinda S,  Irsan C, Pujiastuti Y, Hasbi, Suparman, Lakitan B, Hamidson H, Umayah A. 2020. Community structure of arboreal and soil-dwelling arthropods in three different rice planting indexes in freshwater swamps of South Sumatra, Indonesia. Biodiversitas 21: 4839-4849.  Differences in the index of rice planting can cause differences in the structure of the arthropod community. This study aimed to characterize the community structure of the arboreal and soil-dwelling arthropods in the three different rice planting indexes (PI) in the freshwater swamps of South Sumatra.  Sampling of the arthropods using D-vac and pitfall traps was conducted in the three different rice planting, namely one (PI-100), two (PI-200), and three (PI-300) planting indexes of the rice. The results of the study showed that the dominant predatory arthropod species in the rice fields were Pardosa pseudoannulata, Tetragnatha javana, Tetragnatha virescens, Pheropsophus occipitalis, Paederus fuscipes, and the dominant herbivorous insects were Leptocorisa acuta, Nilavarpata lugens, and Sogatella furcifera. The abundance of arboreal predatory arthropods was the highest in the PI-300 rice and the lowest in the PI-100 rice.    The abundance of soil-dwelling arthropods was the highest in the rice PI-100, and low in the rice PI-200 and PI-300, but the rice PI-100 had the highest abundance of the herbivorous insects. The rice PI-300 was the most ideal habitats to maintain the abundance and the species diversity of the arboreal predatory arthropods. Thus, the rice cultivation throughout the year was profitable in conserving and maintaining the abundance and species diversity of the predatory arthropods.
Diversity of disease-carrying mosquito vectors in potential areas of dengue fever in Palembang City, South Sumatra, Indonesia HERU LISTIONO; NURHAYATI DAMIRI; TOTONG KAMALUDDIN; CHANDRA IRSAN
Biodiversitas Journal of Biological Diversity Vol. 25 No. 2 (2024)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d250205

Abstract

Abstract. Listiono H, Damiri N, Kamaluddin T, Irsan C. 2024. Diversity of disease-carrying mosquito vectors in potential areas of dengue fever in Palembang City, South Sumatra, Indonesia. Biodiversitas 25: 474-481. Mosquitoes (Diptera: Culicidae) are biting insects commonly found in many areas on earth in subtropics and tropics, especially around residential areas. So far, more than 2500 species have been recorded from various parts of the world. They are the main vectors of many diseases in humans and livestock caused by viruses and parasites. Mosquito diversity and disease transmission are influenced by landscape modifications, namely vectors and pathogens. The study aimed to evaluate the distribution, prevalence and abundance of mosquito species in potential dengue fever districts in Palembang city. The study was conducted in 2 two sub-districts in Palembang City, namely Gandus and Seberang Ulu I that represent housing environment, schools and gardens. Mosquito capture was done during three periods 06.00-10.00, 15.00-18.00, and 19.00-21.00 to align with their active hours. This involved active human landing collection method. 200 ovitraps were set up in both regions to assess the density of mosquitoes. The results showed that the diversity index values in Gandus and the Seberang Ulu I sub-districts were 0.781 and 0.756, respectively. Both values were categorized as low diversity index. Furthermore, the dominance index in Gandus and Seberang Ulu 1 sub-district were 0.105 and 0.031, respectively. It meant that there were no dominant mosquito species in both sub-districts. Based on the results of Independent t-test analysis, it was found that the average number of mosquito populations in Gandus sub-district was 25.07 and Seberang Ulu I sub-district was 13.29. From the results of the analysis it was found that there was no difference in average number of mosquito populations between Gandus and Seberang Ulu I sub-district, with a p-value of 0.367. Further research needs to be directed at uncovering mosquito distribution patterns and their potential as disease vectors, the risk of infectious diseases, and the need for further prevention to reduce the number of disease incidences.
Co-Authors Abu Umayah Arsi Arsi Benyamin Lakitan Erise Anggraini Harman Hamidson Hasbi Hasbi Hasbi Hasbi HERU LISTIONO Monica Alesia NURHAYATI DAMIRI Siti Herlinda Suparman Suparman Susilawati Susilawati Tili Karenina TOTONG KAMALUDDIN Yulia Pujiastuti