Main Article Content
Abstract
The proliferation of pests is most influenced by the host (plants) and other environments including plant distance and humidity. Agriculture research and development departement has been released many varieties of rice but their resistance to pests and diseases on various developmental areas is different. The study aims to determine the population and attacks intensity of Rice Leaf Folder (Cnaphalocrosis medinalis) on farming rice jajar legowo ganda and regular systems (tegel). The research has been carried out on farmers fields in Buntulia Village, Duhiadaa District, Pohuwato Regency from June to October 2019. The study used a Split plot research design with four replications. The main plot is farming rice jajar legowo ganda and regular system. Sub plots are varieties: 1). Inpari 30, 2). Inpari 31, 3). Inpari 42, and 4). Situbagendit. Cnaphalocrosis Medinalis was observed when the plants age 5, 7, 9, and 11 week after planting (WAP) on 30 clumps per plot. The results showed Cnaphalocrosis medinalis attacking on all varieties in both systems. However, Cnaphalocrosis medinalis attacks on the farming rice jajar legowo ganda (average 7.96 %) has as lower as than regular system (av. 3.95 %)) on the observations per weeks. The intensity of Cnaphalocrosis medinalis attacks on Inpari 31 (av. 5.56 %) as lower as than Situbagendit (av. 13.43 %). The result showed highest populations Cnaphalocrosis medinalis was found on regular system (av. 9.35 h / c) lowest Cnaphalocrosis medinalis populations was on the rice farming jajar legowo ganda (av. 7.96 h / c). Highest populations of Cnaphalocrosis medinalis was found on Situbagendit variety and Inpari 30 variety has lowest populations. Cnaphalocrosis medinalis attack intensity, generally increasing with rice age, the population density was relatively decreased because control doing.
Keywords: rice leaf folder, planting system, varieties.
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Copyright (c) 2020 Teddy Wahyana Saleh, Amin Nur, Ammini A. Saragih

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References
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References
Abdulrachman, S, M. J. Mejaya, N. Agustina, I. Gunawan, P. Sasmita, dan A. Guswara. 2013. Sistem Tanam Legowo. Balai Besar Penelitian Tanaman Padi. Kementerian Pertanian.
Baehaki, S. E., 2011.Penampilan Hama Pelipat Daun Cnaphalocrosis medinalis Imigran dan Parasitoid Elasmus sp. di Pertanaman Padi. Balai Penelitian Tanaman Padi. Jl. Raya Sukamandi No. 9, Subang Jawa Barat.http://pei-pusat.org/jurnal/?p=608
Baehaki, S.E. 2013. Hama Penggerek Batang Padi dan Teknologi Pengendalian. Jurnal Iptek Tanaman Pangan 8(1):1 - 14.
BPTP Gorontalo. 2013. Petunjuk Teknis Sistem Tanam Legowo. Badan Penelitan dan Pengembangan Pertanian. Kementerian Pertanian.
Direktorat Perlindungan Tanaman Pangan 2018. Petunjuk Teknis Pengamatan dan Pelaporan Organisme Pengganggu Tumbuhan dan Dampak Perubahan Iklim (OPT-DPI). Direktorat Perlindungan Tanaman Pangan Kementerian Pertanian.
Gomez, K.A. dan A.A.Gomez. 2007. Statistical procedures for agricultural research (Prosedur statistik untuk penelitian pertanian, alih bahasa E. Syamsuddin, J.S. Baharsyah, dan A.H. Nasution). UI Press. Jakarta.
Harahap, Z. dan Silitongga. 1993. Perbaikan Varietas Padi Buku 2. Pusat Penelitian dan Pengembangan Pertanian. Bogor. http://www.bps.go.id (03 April 2011)
Husnain D, Nursyamsi, Syakir M. 2016. Teknologi Pemupukan Mendukung Jarwo Super. Jurnal Sumberdaya Lahan 10 (1):1
Pracaya., 1991, Hama dan Penyakit Tanaman, Penebar Swadaya, Jakarta.
Nanda, V.K. and R.C. Bisoi, 1990.Bionomics of rice L7 C.M. Orissa J. Agrl. Res., 3(2): 130-135.
Rahayu, E. 2012. Faktor-Faktor yang Mempengaruhi Kehidupan Serangga. http://kuliahagribisniselin.blogspot.com/faktor-faktor-yang-mempengaruhi.html
Saleh, Teddy Wahyana dan Awaludin Hipi 2018. Pengaruh Sistem Tanam Terhadap Produktivitas dan Serangan OPT Beberapa Varietas Unggul Padi. Buletin Inovasi Pertanian Spesifik Lokasi. Vol 4 No. 2, 2018 Hal. 69-75.
Saeroji. 2013. Sistem Jajar Legowo apat Meningkatkan Produktivitas Padi. Balai Besar Pelatihan Pertanian. Malang.
Syahri dan R.U. Somantri. 2016. Penggunaan varietas unggul tahan hama dan penyakit mendukung peningkatan produksi padi nasional. Jurnal Litbang Pertanian. 35 (1): 25-36.
Slansky, F. JR, J.G Rodriguez, 1987. Nutritional Ecology of Insect, Mites, Spiders and Related Invertebrate An Overview, pp 1-69, Jhon Wiley and Sons. Canada
Sulagitti, Arjun, Raghuramman, Sai Reddy 2017. Management of Rice Leaffolder, Cnaphalocrocis medinalis (Guenee) (Pyralidae: Lepidoptera) with Phenyl Pyrazole and Neonicotinoids. Trends in Biosciences 10(23) 2017. India
Tangkilisan V. E., Ch. L. Salaki., M. F. Dien., dan E. R. M. Meray, 2013. Serangan Hama Putih Palsu Cnaphalocrosis medinalis Guenee pada Tanaman Padi Sawah Di Kecamatan Minahasa Selatan. Jurnal Ilmu Pertanian Eugenia Volume 19 No. 3 Desember 2013