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All Journal Biodiversitas Journal of Biological Diversity
ALI NURMANSYAH
Department of Plant Protection, Faculty of Agriculture, Institut Pertanian Bogor. Jl. Meranti, Kampus IPB Dramaga, Bogor 16680, West Java, Indonesia
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology

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Species diversity, abundance and damaged caused by rats in oil palm plantation in West and Central Sulawesi, Indonesia Muhammad Ikhsan; SWASTIKO PRIYAMBODO; ALI NURMANSYAH; HENNY HENDARJANTI; BANDUNG SAHARI
Biodiversitas Journal of Biological Diversity Vol. 21 No. 12 (2020)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d211208

Abstract

Abstract. Ikhsan M, Priyambodo S, Nurmansyah A, Hendarjanti H, Sahari B. 2020. Species diversity, abundance and damaged caused by rats in oil palm plantation in West and Central Sulawesi, Indonesia. Biodiversitas 21: 5632-5639. Oil palm is one of the plantation commodities which has an important role in Indonesia’s economy. Indonesia is the largest producer and exporter of oil palm in the world with its export value capable of supplying 55.78% of global consumption. Rats are wild animals that are important pests for human life, both in agriculture plantations and urban areas. Rats can damage crops at various stages of plant growth. This study was aimed to determine the species abundance of rats in oil palm plantations, calculate the severity of crop damage due to rats infestation. Three blocks of mature plants were used in OC and OH plantation blocks were used to calculated, crop damage caused by rats, Identify the species of rats, and estimated rats abundance. The results of these studies showed there were four species of rats found in the oil palm plantation, namely Rattus tiomanicus, R. tanezumi, Rattus sp, and Maxomys hellwaldii. However, only R. tiomanicus and R. tanezumi were dominant species. There were significant differences in the number of, sex, and body weight between R. tiomanicus and R. tanezumi. The OC 12 block had the lowest infestation intensity than the other blocks since it was well maintained. The OH 02 block had the highest infestation intensity, infestation area, and abundance due to a lack of maintenance.
Application of Gaultheria essential oil attractant to increase abundance zigzag ladybird beetle (Cheilomenes sexmaculata) and other coccinellids SISKA EFENDI; DADANG DADANG; I WAYAN WINASA; ALI NURMANSYAH
Biodiversitas Journal of Biological Diversity Vol. 26 No. 6 (2025)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d260612

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Abstract. Efendi S, Dadang, Winasa IW, Nurmansyah A. 2025. Application of Gaultheria essential oil attractant to increase abundance zigzag ladybird beetle (Cheilomenes sexmaculata) and other coccinellids. Biodiversitas 26: 2674-2683. Gaultheria essential Oil (GeO) has the potential to be used as an attractant for Cheilomenes sexmaculata because of its high Methyl Salicylate (MeSA) content. The research aimed to evaluate the effectiveness of GeO attractant against C. sexmaculata and its effect on other coccinellids. The tested GeO attractant doses were 0.25 mL, 0.5 mL, 1 mL, and 2 mL/dispenser. The data was analyzed with the Kruskal-Wallis non-parametric median test, with a Mann-Whitney post-test corrected Holm test. The analysis uses the ggstatsplot package version 0.13.0 in R Studio software version 4.4.2. The causal relationship between attractants, abundance, coccinellid richness, and chili (Capsicum annuum) yield was analyzed using a Structural Equation Model (SEM). The results showed that GeO attractant affects the abundance of C. sexmaculata. The attractant GeO also accelerates the presence of C. sexmaculata in chili crops. In addition, GeO attractants also affect the abundance of other predatory coccinellids, namely Micraspis lineata, Harmonia decussata, Coelophora maculata, Coleophora inaequalis, Scymnus sp., Curinus coeruleus, Coccinella transversalis, and Cryptolaemus montrouzieri. The application of GeO attractants, abundance of C. Sexmaculata and Aphis gossypii are directly and significantly related to chili yield. GeO attractant can be a new component of Integrated Pest Management (IPM) to control A. gossypii in chili cultivation.
Co-Authors BANDUNG SAHARI DADANG DADANG HENNY HENDARJANTI I WAYAN WINASA Muhammad Ikhsan SISKA EFENDI SWASTIKO PRIYAMBODO