Abstract. Nelly N, Hamid H, Lina EC, Yunisman. 2021. Distribution and genetic diversity of Spodoptera frugiperda J. E. Smith (Noctuidae: Lepidoptera) on maize in West Sumatra, Indonesia. Biodiversitas 22: 2504-2511. Fall Armyworm (FAW), Spodoptera frugiperda is a major maize pest, reportedly entering West Sumatra, Indonesia in early 2019. After a year of its discovery, there has been no information on the distribution and genetic diversity of this pest. In the present study, research has been carried out to obtain reliable information on the spread, incidence, and genetic diversity of this pest during July-October 2020 at the maize production center of West Sumatra, Indonesia. Sampling was then carried out using the purposive random sampling method, on maize fields in 5 districts (West Pasaman, Padang Pariaman, Solok, Limapuluh Kota and, Tanah Datar). The sample plots were determined with a size of 1x1m2 to observe the population and incidence, meanwhile, the observations were recorded on the larvae number and the percentage damage. Each district location's genetic diversity was analyzed based on the mitochondrial cytochrome c oxidase subunit I (COI) gene nucleotide variations amplified with specific primers. The observations show that S. frugiperda had attacked all maize planting sites in West Sumatra with the attacks ranging percentage from 12.78 to 41.25% and an average larval population of 0.26-1.05 larvae / 2 plants. The genetic diversity analysis results of the S. frugiperda West Sumatra population, on the phylogenetic tree, were divided into two groups, the first is group A which consisted of West Pasaman isolates, and Solok isolates. The second, Group B consisted of Padang Pariaman, Limapuluh Kota, and Tanah Datar isolates (The percentage genetic similirity 99.86-100%). The S. frugiperda population genetics in West Sumatra are similar to those isolates from several other countries in the world.
Cabai merah merupakan sumber pendapatan utama bagi petani di daerah Tanah Datar. Masalah utama yang selalu dihadapi oleh petani cabai di daerah ini adalah serangan hama dan penyakit yang dapat menyebabkan kehilangan hasil yang cukup tinggi. Hingga saat ini, pengendalian hama dan penyakit sayuran masih mengandalkan pestisida sintetik yang telah menimbulkan dampak negatif. Untuk itu, perlu dicari alternatif pengendalian yang dapat mengurangi dampak negatif pestisida tersebut, yaitu menggunakan agens hayati seperti cendawan Beauveria bassiana dan Trichoderma sp.Tujuan dari kegiatan pengabdian kepada masyarakat ini adalah untuk memperkenalkan dan memasyarakatkan pengendalian hama dan penyakit menggunakan agens hayati Beauveria bassiana dan Trichoderma sp. Metode kegiatan pengabdian adalah penyuluhan, pelatihan dan praktek lapangan. Minat petani untuk menggunakan agens hayati terutama Beauveria bassiana dan Trichoderma cukup tinggi dan telah memotivasi mereka untuk mengurangi penggunaan pestisida sintetis. Petani juga telah berhasil memperbanyak agens hayati dan membuat kompos limbah pertanian menggunakan Trichoderma.
Abstract. Nelly N, Hamid H, Lina EC, Yunisman, Yaherwandi, Putri YD. 2023. The development of Spodoptera frugiperda (Lepidoptera: Noctuidae) on Several varieties of maize. Biodiversitas 24: 523-530. Fall armyworm (FAW) or Spodoptera frugiperda (Lepidoptera: Noctuidae) is an invasive pest in Indonesia that cause damage to maize (Zea mays). Farmers for animal feed mainly cultivate several varieties of maize in West Sumatra, Indonesia. Therefore, it is necessary to test the resistance of maize varieties to fall armyworms planted by farmers. Therefore, this research aims to determine the resistance of several observed maize varieties based on their effects on the developmental time of S. frugiperda. The study was arranged in a Completely Randomized Design (CRD) with five treatments and five replications. The treatments for larvae feed consisted of five maize varieties: Sukmaraga, NK-212, Pioneer 21, Bonanza F1, and Secada F1. The development length from egg to adult and life parameters in the second generation were observed. Results of the study showed that the larval and pupal stages of S. frugiperda in the Sukmaraga variety had a longer development duration than the other four varieties, with the larval stage at 20.38 days and pupae at 11.26 days. In addition, the lowest pupae weight was found in the Sukmaraga variety. The maize varieties affect the length of the larval stage and the weight of the pupae and eggs produced. Based on these results, it can be concluded that Sukmaraga is a variety causing a more prolonged larval stage and lower pupae weight than other varieties. Furthermore, the eggs produced by the second-generation female S. frugiperda adult are fewer than in different varieties.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.