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Population Assessment and Appropriate Spraying Technique to Control The Bagworm (Metisa plana Walker) in North Sumatra And Lampung Sudarsono, Hamim; Purnomo, Purnomo; Hariri, Agus M.
AGRIVITA, Journal of Agricultural Science Vol 33, No 2 (2011)
Publisher : Faculty of Agriculture University of Brawijaya and Indonesian Agronomic Assossiation

Show Abstract | Download Original | Original Source | Check in Google Scholar

Over the last few years, the bagworm Metisa plana Walker (Lepidoptera: Psychidae) has become an important pest of oil palm, especially in North Sumatra. Recent report suggested that the bagworm has also been found in Lampung. The report requires preliminary survey to assess M. plana status and to prepare an effective control measure for the pest. This study was conducted to determine the relative density of M. plana in North Sumatra and Lampung and to compare the effectiveness of the spraying versus fogging application to control M. plana in oil palm fields. The observation confirmed that in 2010 M. plana colonies have developed in Lampung with an average relatively similar to that in North Sumatra during 2005. The finding implies that monitoring should be taken routinely to anticipate further development of the bagworm population in Lampung. Overall results of carbosulfan treatments suggested that the fogging insecticide technique was potentially as effective as spraying technique. This finding could be beneficial for bagworm control program due to the extensive areas of oil palm and the large size of canopy. A more thorough experiment is required to explore the most economical doses and to select effective insecticides to control M. plana. Keywords : Metisa plana Walker (Lepidoptera: Psychidae), bagworm, oil palm, spraying vs. fogging application

Intensitas Kerusakan pada Beberapa Varietas Tebu Akibat Serangan Penggerek Pucuk Tebu (Scirpophaga nivella intacta) setelah Aplikasi Zat Pemacu Kemasakan Isoprophylamine Glyphosate Sudarsono, Hamim; Sunaryo, Sunaryo; Saefudin, Saefudin
Jurnal Penelitian Pertanian Terapan Vol 11, No 3 (2011)
Publisher : Politeknik Negeri Lampung.

Isoprophylamine glyphosate, a common herbicide, is widely used as a sugarcane ripener to hasten maturation and to increase sugar yield in many countries. The ripener also alter the physiology of sugarcane that might consequently affect the development of the sugarcane shoot borer, Scirpophaga nivella intacta Snell (Lepidoptera: Pyralidae). This research studied the effect of isoprophylamine glyphosate on the intensity of S. nivella intacta attacks on several cultivars of sugarcane. Results of the experiment showed that varieties of sugarcanes responded differently after application of isoprophylamine glyphosate. The percentages of damaged nodes by S. nivella intacta were higher following the application of the ripener on GM 21 and RGM 97-10167 cultivars. Conversely, the damage nodes were lower on RGM 97-8752 and RGM 97-10120 at 20-30 days after the application of the ripener. Out of four tested cultivars, GM 21 was in general the most susceptible to the attacks of the sugarcane shoot borer. On the other side, there was an indication that cultivar RGM 97-10120 applied with isoprophylamine glyphosate had the lowest damage level by S. nivella intacta. The cultivar could be further investigated to study wether it has the potential as a better cultivar against S. nivella intacta when isoprophylamine glyphosate is applied as the cane ripener. Keyword: ripener, soprophylamine glyphosate, Scirpophaga nivella intacta, sugarcane

Sistem Pakar Diagnosis Hama Dan Penyakit Tanaman Kopi Menggunkan Metode Breadth First Search (Bfs) Berbasis Web R. Lumbanraja, Favorisen; Rosdiana, Siti; Sudarsono, Hamim; Junaidi, Akmal
Explore:Jurnal Sistem informasi dan telematika(Telekomunikasi, Multimedia dan Informatika) Vol 11, No 1 (2020): Juni
Publisher : Universitas Bandar Lampung (UBL)

Beberapa faktor menyebabkan rendahnya kualitas dan produktivitas kopi di Indonesia. Alasan utama permasalahan ini adalah gangguan hama dan penyakit. Sebagian besar petani kopi di Indonesia, khususnya di Provinsi Lampung adalah petani kopi yang tidak terdidik. Para petani masih menggunakan cara tradisional dalam mengidentifikasi hama dan penyakit. Dengan menggunakan sistem pakar diharapkan petani dapat melakukan diagnosis hama dan penyakit kopi secara akurat. Tujuan utama dari penelitian ini adalah membangun sistem pakar berbasis web untuk mendiagnosis hama dan penyakit tanaman kopi. Untuk mengidentifikasi hama dan penyakit tanaman kopi, teknik Breadth First Search digunakan. Data terdiri dari 5 hama, 5 penyakit, dan 28 gejala dari hama dan penyakit pada tanaman kopi. Certainty Factor digunakan untuk menentukan bobot setiap gejala dan nilainya ditentukan oleh pakar dan pengguna. Selanjutnya Certainty Factor secara iteratif dihitung oleh sistem untuk mengukur persentase hasil diagnosis. Untuk mengevaluasi sistem ini, 30 pengguna dipilih dan dikelompokkan menjadi 3 kelompok (pakar kopi, petani dan mahasiswa Fakultas Pertanian, mahasiswa jurusan Ilmu Komputer). Pengguna diminta untuk menilai sistem dengan mengisi kuesioner. Pengguna menyimpulkan bahwa sistem pakar berjalan dengan baik dengan persentase masing-masing 75.56%, 73,78% dan 83.39%.

Sistem Pakar Diagnosis Hama Dan Penyakit Tanaman Kopi Menggunkan Metode Breadth First Search (Bfs) Berbasis Web Favorisen R. Lumbanraja; Siti Rosdiana; Hamim Sudarsono; Akmal Junaidi
Explore: Jurnal Sistem Informasi dan Telematika (Telekomunikasi, Multimedia dan Informatika) Vol 11, No 1 (2020): Juni
Publisher : Universitas Bandar Lampung (UBL)

Beberapa faktor menyebabkan rendahnya kualitas dan produktivitas kopi di Indonesia. Alasan utama permasalahan ini adalah gangguan hama dan penyakit. Sebagian besar petani kopi di Indonesia, khususnya di Provinsi Lampung adalah petani kopi yang tidak terdidik. Para petani masih menggunakan cara tradisional dalam mengidentifikasi hama dan penyakit. Dengan menggunakan sistem pakar diharapkan petani dapat melakukan diagnosis hama dan penyakit kopi secara akurat. Tujuan utama dari penelitian ini adalah membangun sistem pakar berbasis web untuk mendiagnosis hama dan penyakit tanaman kopi. Untuk mengidentifikasi hama dan penyakit tanaman kopi, teknik Breadth First Search digunakan. Data terdiri dari 5 hama, 5 penyakit, dan 28 gejala dari hama dan penyakit pada tanaman kopi. Certainty Factor digunakan untuk menentukan bobot setiap gejala dan nilainya ditentukan oleh pakar dan pengguna. Selanjutnya Certainty Factor secara iteratif dihitung oleh sistem untuk mengukur persentase hasil diagnosis. Untuk mengevaluasi sistem ini, 30 pengguna dipilih dan dikelompokkan menjadi 3 kelompok (pakar kopi, petani dan mahasiswa Fakultas Pertanian, mahasiswa jurusan Ilmu Komputer). Pengguna diminta untuk menilai sistem dengan mengisi kuesioner. Pengguna menyimpulkan bahwa sistem pakar berjalan dengan baik dengan persentase masing-masing 75.56%, 73,78% dan 83.39%.

HAMA BELALANG KEMBARA (LOCUSTA MIGRATORIA MANILENSIS MEYEN): FAKTA DAN ANALISIS AWAL LEDAKAN POPULASI DI PROVINSI LAMPUNG Hamim Sudarsono .
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 3 No. 2 (2003): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
Publisher : Universitas Lampung

Migratory locust (Locusta migratoria manilensis Meyen) : Preliminary facts and analyzes on the population outbreaks in Lampung Province. The migratory locust (locally known as belalang kembara), Locusta migratoria manilensis Meyen (Orthoptera: Acrididae), has become a major insect pest in Lampung in recent years since its outbreak in 1998. Thousand hectares of agricultural fields were severely destroyed by the locust populations during the course of the outbreak. Local as well as national government were caught in surprised by the population upsurge with little information and technology available for controlling the pest. First presence of locust population was recorded in Kecamatan Pakuan Ratu in 1990. Area damage in the first year was ca. 60 ha. The population grew steadily over the years and reached its peak in April-May of 1998 when thousands of corn and rice fields were severely damaged. Country roads and fields were filled with millions of locust nymphs. Records of locust attacks during preliminary outbreaks from 1990 to 1998 also indicated that the insect started its outbreak from the same areas during those years, i.e. North Lampung District and northern Tulang Bawang District (two of the outmost northern of Lampung Province). Insect pest control experts were very concerned that the locust has established its populations in the region and could cause significant loss in the upcoming years. Control strategy and techniques based on the insect biology and population dynamics, therefore, should be explored and developed to manage future outbreaks. This paper discusses and analyzes preliminary facts and information on the migratory locust and possible strategies that could be implemented for managing the locust.

HUBUNGAN ANTARA CURAH HUJAN DAN LUAS SERANGAN BELALANG KEMBARA (Locusta migratoria manilensis Meyen) DI PROVINSI LAMPUNG Hamim Sudarsono; Rosma Hasibuan; I Gede Swibawa
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 11 No. 1 (2011): MARET, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
Publisher : Universitas Lampung

Population outbreak of the oriental migratory locust, Locusta migratoria manilensis Meyen (Orthoptera: Aciridae), in Lampung between 1990’s to 2000’s has caused serious economic loss to agriculture. Anticipation of the pest outbreak is required to prevent serious loss in the future; one of possible approach is by analyzing data of rainfall and locust damage area. The study was aimed to analyze the relationship between rainfalls and area of damage caused by locust population in rice and corn fields using 17 years period of data from Lampung Province. The results indicate that locust damage occurred when there were high rainfalls followed low ones at wet season. Time lag of 8 month was determined as the period needed for L. migratoria manilensis to raise its population when the pest has developed gregarious colonies in the region. Rainfalls between 248,27 mm/month (on corn fields) to 287,06 mm/month (on rice fields) were optimum for the initiation of the locust population increase after a period of dry weather in the region. Results of autocorrelation tests indicate that the occurrence of locust damage in an area would be followed by population increase in a region where gregarious colonies have developed.

PENGARUH LAMA PERIODE KERING DAN INTENSITAS CURAH HUJAN TERHADAP PENETASAN BELALANG KEMBARA (LOCUSTA MIGRATORIA MANILENSIS MEYEN) Hamim Sudarsono .
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 8 No. 2 (2008): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
Publisher : Universitas Lampung

Effect of Dry Period and Rainfall Intensity on Emergence of the Migratory Locust (Locusta migratoria manilensis Meyen). Dry period and rainfall intensity were simulated experimentally to determine their effects on nymph emergence of the migratory locust (Locusta migratoria manilensis Meyen) (Orthoptera: Acrididae). The experiment was conducted in a factorial set up with two factors, i.e. dry periods (1, 2, 4, 8, and 12 week interval of watering) and rainfall intensity (80, 140, 200, and 260 mm/month). Locust nymphal emergence and time required to emerge after the watering were recorded and analyzed. Results of the experiment indicated that dry periods and rainfall levels affected nymphal emergence of the migratory locust. Interaction between dry periods and rainfall levels, however, were statistically not significant (F-value = 0,69 and P-value = 0,7526). Nymphal emergences of L. m. manilensis tended to be higher on soils that were watered less frequently. Similarly, locust emergences were also higher for the soil with lower rainfall intensity (received less amount of watering). At the 80 mm/month rainfall level, 20 – 105,5 days period (egg incubation period) were required before the locust emergence. Incubation period of the eggs was significantly higher as the breeding media (soil) were watered less frequently. On the other hand, time required for the egg to emerge as nymphs was relatively similar regardless of the dry period levels. All eggs emerged 14 – 15,5 days after watering.

Population Assessment and Appropriate Spraying Technique to Control The Bagworm (Metisa plana Walker) in North Sumatra And Lampung Hamim Sudarsono; Purnomo Purnomo; Agus M. Hariri
AGRIVITA, Journal of Agricultural Science Vol 33, No 2 (2011)
Publisher : Faculty of Agriculture University of Brawijaya in collaboration with PERAGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17503/agrivita.v33i2.62

Over the last few years, the bagworm Metisa plana Walker (Lepidoptera: Psychidae) has become an important pest of oil palm, especially in North Sumatra. Recent report suggested that the bagworm has also been found in Lampung. The report requires preliminary survey to assess M. plana status and to prepare an effective control measure for the pest. This study was conducted to determine the relative density of M. plana in North Sumatra and Lampung and to compare the effectiveness of the spraying versus fogging application to control M. plana in oil palm fields. The observation confirmed that in 2010 M. plana colonies have developed in Lampung with an average relatively similar to that in North Sumatra during 2005. The finding implies that monitoring should be taken routinely to anticipate further development of the bagworm population in Lampung. Overall results of carbosulfan treatments suggested that the fogging insecticide technique was potentially as effective as spraying technique. This finding could be beneficial for bagworm control program due to the extensive areas of oil palm and the large size of canopy. A more thorough experiment is required to explore the most economical doses and to select effective insecticides to control M. plana. Keywords : Metisa plana Walker (Lepidoptera: Psychidae), bagworm, oil palm, spraying vs. fogging application

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