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All Journal Jurnal MIPA EUGENIA Buletin Penelitian Tanaman Rempah dan Obat JURNAL LPPM BIDANG SAINS DAN TEKNOLOGI Seminar Nasional Lahan Suboptimal Buletin Penelitian Tanaman Rempah dan Obat Jurnal Agroekoteknologi Terapan
Juliet M.E. Mamahit
Universitas Sam Ratulangi
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemistry Decision Sciences, Operations Research & Management Education Environmental Science Mathematics Physics Other

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Journal : EUGENIA

 1 
PENYEBARAN DAN TINGKAT SERANGAN KUTU PUTIH PEPAYA DI SULAWESI UTARA Anes, Nasution Suharto; Tulung, Max; Mamahit, Juliet M.E.
EUGENIA Vol 18, No 1 (2012)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/eug.18.1.2012.4143

Abstract

ABSTRACT   Papaya mealybug, Paracoccus marginatus (Hemiptera: Pseudococcidae) in Indonesia was reported attacking papaya in 2008 in Bogor. In North Sulawesi reported attacked papaya in 2009 in Manado. The purpose of research to determine the level of attacks and spreading of  papaya mealybug P. marginatus in North Sulawesi. The study was conducted from December 2010 - September 2011. Dissemination papaya mealybug based on altitude in North Sulawesi, namely: Bitung, North Minahasa, Minahasa, South Minahasa, South Minahasa, Tomohon, and Manado. Papaya plants were attacked by the intensity of the attacks seen low <25%, moderate 25-50% and 50-90% by high. Samples of papaya mealybug brought in the Laboratory Pest and Entomology, Faculty of Agriculture Unsrat Manado to be identified. Results showed papaya mealybug pest infestation has spread over several papaya plantation in North Sulawesi. Papaya mealybug attack papaya covering several areas in the lowlands (<200 m asl) to high area (800 m asl). Spreading pf papaya mealybug attack papaya plantation of Minahasa, Manado, Bitung, Tomohon, North Minahasa and South East Minahasa. Attack rates range of mealbug from low, moderate, and high. Keyword : Spreading, intensity attack, Paracoccus marginatus ABSTRAK   Kutu putih pepaya Paracoccus marginatus (Hemiptera: Pseudococcidae) di Indonesia dilaporkan menyerang pepaya tahun 2008 di Bogor. Di  Sulawesi Utara dilaporkan menyerang pepaya tahun 2009 di Manado. Tujuan penelitian untuk mengetahui penyebaran dan tingkat serangan kutu putih pepaya P. marginatus di Sulawesi Utara. Penelitian dilakukan mulai Desember 2010 - September 2011. Data penyebaran kutu putih pepaya didasarkan pada ketinggian tempat di Sulawesi Utara, yaitu : Bitung, Minahasa Utara, Minahasa, Minahasa Tenggara, Minahasa Selatan, Tomohon, dan  Manado. Tanaman pepaya yang terserang dilihat intensitas serangan yaitu serangan ringan < 25 %, sedang  25-50 % dan berat 50-90 %. Sampel tanaman yang terserang  kutu putih pepaya dan musuh alami dibawa di laboratorium Hama dan Entomologi, Fakultas Pertanian Unsrat Manado untuk diidentifikasi. Hasil penelitian menunjukkan hama kutu putih pepaya telah tersebar di beberapa perkebunan  pepaya di Sulawesi Utara. Serangan kutu putih pepaya meliputi beberapa daerah di dataran rendah (< 200 m dpl) sampai di daerah tinggi (800 m dpl). Eugenia Volume 18 No. 1  April 2012 Kata Kunci : Penyebaran, intensitas serangan, Paracoccus marginatus
BIOLOGI DAN DEMOGRAFI TUNGAU MERAH Tetranychus spp. (Acari: Tetranychidae) PADA TANAMAN KEDELAI Mamahit, Juliet M.E.
EUGENIA Vol 17, No 2 (2011)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/eug.17.2.2011.3534

Abstract

ABSTRACT   Red spider mite Tetranychus spp. are pest on several ornament and food plant. The objectives of this research were to study biology and demography Tetranychus spp. on soybean in condition laboratory. A piece of soybean leaf measures 3 cm2 at place above cotton in petridis. Above the leaf were put a pair red spider mite to watch the biology of mite.  The research of demography of red spider mite was done observation in one hundred egg that used to come from age class same (cohort). The observation was done every day until the egg become to adult. The result showed that the mean of fecundity of red spider mite were 54.16 egg. The total life time of female 13.28 day and sex ratio 1:1.5. The intrinsic rate of increase the population were 0.253 individual per day, the discrete daily growth rate were, 1.28 individual/day, the net reproduction rate were 25.515 individual/female/generation. The generation time were 13.567 days. The stable population of Tetranychus spp. in laboratory were 67.2% egg, 24.6 nymph and 8.2% adult. The intrinsic birth and death rate were 0.3 and 0.05 individual/female/day. Key words: Tetranychus spp., Demography, Soybean
SERANGGA-SERANGGA YANG BERASOSIASI PADA PERSEMAIAN PADI SAWAH DI KECAMATAN KOTAMOBAGU TIMUR KABUPATEN BOLAANG MONGONDOW Tunggali, Irma S.; Mamahit, Juliet M.E.; Dien, Moulwy F.
EUGENIA Vol 19, No 1 (2013)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/eug.19.1.2013.8376

Abstract

ABSTRACT   This study aims to determine the types of insects that are associated to the rice nursery at sub district of East Kotamobagu, Bolaang Mongondow Regency. Research using Survey Methods on two sample locations at sub-district of East Kotamobagu, those are Kobo Besar and Kobo Kecil Village. Each location has determined by three specified locations in paddy rice nursery which is used as a sampling point. Sampling was done by using a sweep net by sweeping a double swing in ten times with the interval once a week for one month. The results showed that, there were ten species of insects associated in paddy rice nursery at sub-district of East Kotamobagu. Insects, has  found were the order of Coleoptera, Orthoptera, Diptera, Odonata, Homoptera, and Hymenoptera. The identification of insects found in the areas of rice nurseries were: Nephotettis sp., Nilaparvata sp., Conocephalus sp., Oxya sp., Ophionea sp., Verania sp., Menochilus sp., Atherigona sp., Agriocnemis spp. and Ichneumonidae. From ten species of insects found four types of pests which act as Nephotettis sp., Nilaparvata sp., Oxya sp., and Atherigona spp.; five  types act as a predator, those are: Conocephalus sp., Ophionea sp., Verania sp., Menochilus sp., Agriocnemis spp.; and one type of role as parasitoids, is family Ichneumonidae. Keywords: rice nurseries field, insects ABSTRAK Penelitian ini bertujuan untuk mengetahui jenis-jenis serangga yang berasosiasi pada persemaian padi sawah di Kecamatan Kotamobagu Timur, Kabupaten Bolaang Mongondow.  Penelitian menggunakan metode survey pada dua lokasi sampel di Kecamatan Kotamobagu Timur, yaitu Desa Kobo Besar dan Kobo Kecil. Masing-masing lokasi ditentukan tiga persemaian padi sawah yang digunakan sebagai tempat pengambilan sampel. Pengambilan sampel dilakukan dengan menggunakan jaring serangga dengan cara penyapuan sebanyak sepuluh kali ayunan ganda dengan interval waktu seminggu sekali selama 1 bulan. Hasil penelitian menunjukkan bahwa, terdapat sepuluh jenis serangga yang berasosiasi pada persemaian padi sawah di Kecamatan Kotamobagu Timur.  Serangga-serangga yang ditemukan adalah ordo Coleoptera, Orthoptera, Diptera, Odonata, Homoptera, dan Hymenoptera. Hasil identifikasi menunjukkan bahwa serangga-serangga yang ditemukan pada areal persemaian padi adalah Nephotettis sp., Nilaparvata sp., Conocephalus sp., Oxya sp., Ophionea sp., Verania sp., Menochilus sp., Atherigona sp.,  Agriocnemis spp. dan Ichneumonidae. Dari sepuluh jenis serangga yang ditemukan empat jenis berperan sebagai hama yaitu Nephotettis sp., Nilaparvata sp., Oxya sp., dan Atherigona spp.; lima jenis berperan sebagai predator yaitu Conocephalus sp., Ophionea sp., Verania sp., Menochilus sp., Agriocnemis spp. dan 1 jenis berperan sebagai parasitoid yaitu family Ichneumonidae.  Eugenia Volume 19  No. 1  April 2013 Kata kunci : persemaian padi sawah, serangga
Co-Authors Audy R. Bororing, Audy R. Betsy A.N. Pinaria Caroulus S. Rante Christina Salaki Claudius F. Kairupan, Claudius F. Daisy . Kandowangko Daisy S. Kandowangko Dantje Tarore Emmy Senewe Ester . Kotambunan Frangky J. Paat Guntur M.J. Manengkey Guntur S.J. Manengkey Irma S. Tunggali, Irma S. James B. Kaligis Jantje Pelealu Joice Rompas Jusuf Manueke Mangare, Anna Monica Marco M. Supit Margono . Mariane K. Lumananw Max . Tulung Max Tulung Melisa P. Todingan Memah, Ventje Monika Sitohang Montong, Vivi B. Moulwy F. Dien Nasution Suharto Anes Noni N. Wanta Oddi R Pinontoan PURNAMA HIDAYAT Riedel Lolong Rivo Manopo Sandra E. Pakasi Sandra E. Pakasi Sandra E. Pakasi Sandra Pakasi Slamet Pulukadang Sobir Sobir SYAFRIDA MANUWOTO Wiske Rotinsulu Zainudin Limbanadi