Insects diversity in salak (Salacca zalacca Gaert.) plantation with differences altitude in North Sumatra, Indonesia

• Published in: IOP conference series. Earth and environmental science 2021-06, Vol.782 (4), p.42036
• Main Authors: Siregar, M R I, Sitepu, S F, Siregar, A Z
• Format: Article
• Language: English
• Subjects: Altitude; Composition; Insects; Light traps; Pests; Plantations; Pollinators; Salacca; Sea level
• ISSN: 1755-1307; 1755-1315
• DOI: 10.1088/1755-1315/782/4/042036

The aim of this study was to compare the composition, the distribution and the index of diversity of insects on salak ( Salacca zalacca Gaert.) from October 2019 until December 2019 at two different altitudes, including 1200 meter above sea level (masl) in Kutambaru Village, Tiganderket District, Karo Regency and at 350 masl in Rumah Lengo Village, STM Hulu District, Deli Serdang Regency. The research was conducted by survey method with collection samples for 6 times using pit fall traps, light traps, yellow traps, and hand picking. The insects were identified at the Laboratory of Pests and Diseases, Faculty of Agriculture, University of Sumatera Utara. The results showed that the insects caught in the S.zalacca plantation area at 350 masl comprised of 10 orders, 20 families with a total population of 663 individuals, while the insects collected from the 1200 masl were 8 orders, 19 families and 367 individuals. The diversity index calculated are H’=2.03 in 350 masl and H’=2.35 in 1200 masl. The categorized into moderate diversity of insects which implication no quite differences scores of the composition and diversities of insects. The function status insects were categorized into pest, predator, parasitoid, pollinator, and decomposer.