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COCOS
Published by Universitas Sam Ratulangi
ISSN : -     EISSN : 27150070     DOI : 10.35791
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Jurnal ini memuat materi yang berkaitan dengan Pertanian. Menyangkut Tanah, Budidaya Pertanian, Proteksi Tanaman, Teknologi Pertanian dan Sosial Ekonomi Pertanian
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Pertanian dan Biologi (Lain-Lain)
Articles 831 Documents
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INSIDENSI DAN SEVERITAS PENYAKIT BERCAK DAUN PADA TANAMAN KACANG TANAH DI DESA LOWIAN DAN LOWIAN SATU KECAMATAN MAESAAN KABUPATEN MINAHASA SELATAN Sammy S.N. Rori; Guntur S.J. Manengkey; Christina L. Salaki; Caroulus S. Rante
COCOS Vol. 4 No. 6 (2014)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v4i6.4843

Abstract

ABSTRACTSammy Sem Niclas Rori. Incidence and Severity of Leaf Spot Disease on Peanut Plants in the Lowian and Lowian One Village, Subdistrict Maesaan, District of South Minahasa. Under Guidence Ir Guntur S.J. Manengkey, MP as chaiman, Prof. Dr. Ir Christina L. Salaki, MS and Ir. Caroulus S. Rante, MS as member.This study aimed to determine the incidence and severity of leaf spot diseases on peanut plants. The experiment was conducted in the Lowian and Lowian One, Maesaan the District of South Minahasa Regency. The duration of the study which lasted for four months from September to December 2013. Research field using survey methods that further observation and communication with the peanut farmer. Furthermore, the distribution plots five sample plots in two different villages to be observed regarding the incidence and severity of disease caused by the cause of the peanut plant. In the laboratory microscopic observation of the shape of conidiophores of the fungus causes leaf spot disease. Things were observed in this study are: (i) symptoms of infected plants leaf spot disease-causing pathogens, (ii) the incidence and severity of disease. Observations in the field showed that the symptoms appear on peanut plants after infection by a disease that causes patches of chlorosis appear later developed into necrosis with an irregular round shape up. This phenomenon is located on the lower surface of the leaves and the leaves, leaf spot color ranging from light brown to brown or yellow halo blackish necrosis.Keywords: incidence, severity, leaf spot disease
JENIS DAN POPULASI SERANGGA DI AREAL TANAMAN NENAS (Ananas Comosus (L.) Merr.) KECAMATAN PASSI BARAT KABUPATEN BOLAANG MONGONDOW Slamet Pulukadang; Juliet M.E. Mamahit; Moulwy F. Dien; Guntur S.J. Manengkey
COCOS Vol. 4 No. 6 (2014)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v4i6.4844

Abstract

ABSTRACTThis study aims to determine the insect types and populations at the areas of Pineapple plants near housing ecosystems and near forest ecosystems. The experiment was conducted in centers of Pineapple plantation in the Mongkonai and Lobong village District of Bolaang Mongondow and at the Laboratory of Entomology and Plant Pests UNSRAT Faculty of Agriculture for five months from July to December. insect Observation on pineapple plants is done by using the method of trapping wells (pithfall) on generative plant and samples insects taken three times. The results showed that there are four associated insect Order on the areas of Pineapple plants near housing ecosystems are: Order Orthoptera (Family Acrididae, Gryllidae); Order Coleoptera (Family Scolytidae, Scarabaiedae); Order Diptera (Family Drosophilidae, Bombyliidae); and the Order Hymenoptera (Family Formicidae), while on the area of Pineapple planting near the forest ecosystem there are five insects Order are :: Order Orthoptera (Family Gryllidae, Acrididae, and Blattidae); Order Coleoptera (Family Scarabaeidae, Scolytidae, Cicindelidae, Crysomelidae, and Alleculidae); Order Diptera (Family Drosophilidae, Bombyliidae, and Tachinidae); Order Hymenoptera (Family Formicidae); and the Order Lepidoptera (Family Pyralidae). The results also obtain the number of insects found in varying amounts each Family. The number of insects found on average ranges from 2-423 insect.Key words : the insect types and populations, Pineapple plants
PEMANFAATAN EKSTRAK BIJI Barringtonia asiatica L. UNTUK PENGENDALIAN KEONG MAS PADA TANAMAN PADI DI DESA POPONTOLEN KECAMATAN TUMPAAN KABUPATEN MINAHASA SELATAN MARGONO .; Jusuf Manueke; Juliet M.E. Mamahit; Caroulus S. Rante
COCOS Vol. 4 No. 6 (2014)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v4i6.4845

Abstract

ABSTRACTMargono. Use of seed extract Barringtonia asiatica L. to control golden snail in rice plants at village Popontolen, subdistrict Tumpaan, district Minahasa Selatan. Under Guidence Dr Ir Jusuf Manueke, MP as chaiman, Dr. Ir. Juliet M.E. Mamahit, M.Si and Ir. Caroulus S. Rante, MS as member.The study aimed to determine the effect of seed extract Bitung , B. asiatica against golden snail mortality. The experiment was conducted in the village of popontolen, subdistrict Tumpaan, Minahasa Selatan Regency. The duration of less than six months of the study, which lasted from August 2013 until January 2014. Research using experimental methods with Complete Randomized Design (CRD) consisting of four treatments and three replications. The treatment used is the concentration of seed extract Bitung 0% (control), 10%, 20% and 30%. Observations death snails performed 6, 12, 24, 30, 42, 54 and 66 hours after application.Symptoms begin with snails death marked the release of mucus from the surface of the body and the body slowly over time regardless of the shells. The observation of 6 hours after the application has been found dead snails in the treatment of Bitung seed extract with a concentration of 20 % and 30 % , ie respectively 14.31% and 28.23%. In observation 12 hours after application, the third seed extract concentration and Bitung (10%, 20% and 30%) had deadly snails above 80.00%. Therefore the use of seed extract B. asiatica with a concentration of 10% can already be used to control snails in rice plants.Keywords: Barringtonia asiatica, golden snail, Minahasa Selatan
SERANGGA HAMA YANG BERASOSIASI PADA TANAMAN PEPAYA (Carica papaya L.) DI DESA TALAWAAN KECAMATAN TALAWAAN KABUPATEN MINAHASA UTARA Feybra S. Sigarlaki; Jantje Pelealu; James B. Kaligis; Emmy Senewe
COCOS Vol. 4 No. 6 (2014)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v4i6.4854

Abstract

ABSTRACTFeybra S. Sigarlaki. Pest Insects Associated on Plants Papaya (Carica Papaya L.) in the Village Talawaan, District Talawaan, Regency Minahasa Utara. Under Guidence Prof. Dr. Ir. Jantje Pelealu, MS as chairman, Ir. James B. Kaligis, M.Si and Ir. Emmy Senewe, M.Si as member.The study aimed to determine the association of insect pests on crop Papaya in Village Talawaan, District Talawaan, regency Minahasa Utara. Research conducted surveys using methods purporsive sampling. At planting area observed insects found in papaya plants. Sampling was done by catching insects directly and observe the plants in the form of stems, leaves, and fruit are infested by insects. Insect samples were obtained from the direct retrieval, collected and grouped then taken to the laboratory for identification and documentation. Insect samples were taken on three varieties of papaya, the varieties of Bangkok, Thailand and California. Each set of 20 varieties of trees as a place of observation. The total number of papaya plants sampled 60 trees. Sampling was carried out four times at intervals of two weeks. Things that are observed insects collected on various varieties of papaya.The results of the study found four types of insects that are associated to the papaya plant in the Village Talawaan, District Talawaan. Types of insect pests, namely Aleurodicus sp. (Hemiptera: Aleyrodidae) and Paracoccus sp. (Hemiptera: Pseudococcidae) and their natural enemies, the Coccinellidae (Coleoptera) and Forficulidae (Dermaptera).Keywords : Carica papaya, Minahasa Utara
INSIDENSI PENYAKIT AKAR GADA (Plasmodiophora brassicae Wor.) PADA TANAMAN KUBIS DI DESA RURUKAN DAN KUMELEMBUAY KECAMATAN TOMOHON TIMUR KOTA TOMOHON Frida Towaki; Max M. Ratulangi; Guntur S.J. Manengkey; Henny V.G. Makal
COCOS Vol. 4 No. 6 (2014)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v4i6.4855

Abstract

ABSTRACTFrida Towaki. Incidence of Clubroot Disease (Plasmodiophora brassicae Wor.) Cabbage Plants in the Village of Rurukan and Kumelembuay East Tomohon District Tomohon City. Guidence Ir. Max M. Ratulangi, MS as chairman, Ir. Guntur S.J. Manengkey, MP and Ir. Henny V.G. Makal, M.Si as memberThe study aimed to determine the incidence of root diseases clubroot on cabbage in the village Rurukan and Kumelembuay, Eastern District of Tomohon, Tomohon . This research was conducted in the village of Rurukan and Kumelembuay sub district East Tomohon, Tomohon city, and continued in the laboratory for microscopic observation of the pathogen Plasmodiophora brassicae. Data retrieval clubroot disease incidence for each village determined four blocks, each block of the extent of 0.5 ha and made sliced diagonally to get five plots with a size of 2.5 x 2.5 m, spacing is 50 x 40 cm so that each plot 32 and the number of plants from the plots do root disease incidence data retrieval clubroot. Data collection was started at the age of 21 plants DAP, with an interval of one week observation period. The result showed that the cabbage plant in the village Kumelembuay and Rurukan Plasmodiophora brassicae Wor already infected. Clubroot cause of the disease with the symptoms experienced withered plant leaves and roots when plants revoked visible swelling. The level of pathogen attack in the village of Rurukan average was 52.17 % and 46.40 % in the Village Kumelembuay.Keywords : Plasmodiophora brassicae Wor, Cabbage
POPULASI Lamprosema indicata (LEPIDOPTERA: PYRALIDAE) PADA TANAMAN KACANG MERAH DI KECAMATAN TOMPASO DAN KAWANGKOAN KABUPATEN MINAHASA Margareta M. Kawulusan; Odi R. Pinontoan; Mareyke Moningka; Dantje Taroreh
COCOS Vol. 4 No. 6 (2014)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v4i6.4856

Abstract

ABSTRACTMargareta M. Kawulusan. Population Lamprosema indicata (Lepidoptera: Pyralidae) to Plant in Red Beans at District Tompaso and Kawangkoan Regency Minahasa. Guidence Prof. Dr. Ir. Odi R. Pinontoan, MS as chairman, Dr. Ir. Mareyke Moningka, MS and Dr. Ir. Dantje Tarore, MS as member.This study aims to determine the symptoms and attacks on the population of L. indicata red beans crops in the district Tompaso and Kawangkoan, Minahasa regency. The study uses survey and sampling methods are purposive sampling at a predetermined location. Area is used as an observation area set at 300 m2 which is divided into five sub-plot of the observations in the form of diagonal slices. Observations on the larval population sub-plot planting beans defined five beds and beds of each plant sample was observed ten systematically determined. Observations were carried out five times at intervals of seven days in the time period of 2-3 weeks old plants. Things were observed in this study is a symptom of pest attack L. indicata larvae collected and the number of observation each time.Pests attack L. indicata encountered red bean crop farmers in the district Tompaso and Kawangkoan. Population larvae L. indicata in District Kawangkoan peak in the third observation that 6,60 in the village were in the village Kanonang Tondegesan, observation of a peak in the fourth with an average population of the same, namely 6.60. While in the District Tompaso, peak larval populations of L. indicata third at 7.00 on observations of individuals in the village Tonsewer I, a peak in the second observation with the population average of 6,80.Key words : Lamprosema indicatai, Kacang Merah, Minahasa
ANALISIS LIKUIDITAS KOPERASI SIMPAN PINJAM KAMANGTAWAYA DESA SENDANGAN KECAMATAN REMBOKEN KABUPATEN MINAHASA Monica P. Mumek; Theodora M. Katiandagho; Rine Kaunang; Charles R. Ngangi
COCOS Vol. 5 No. 1 (2014)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v5i1.4857

Abstract

ABSTRACTThe objective of this study is to analyze the levels of liquidity Current Ratio of Credit Cooperative “Kamangtawaya”, Sendangan Village Remboken Sub District Minahasa Regency, based on financial report from 2008 to 2013. Research was conducted at Cooperative “Kamangtawaya”, Sendangan Village Remboken Sub District Minahasa Regency lasted for 4 months from January 2014 to April 2014. Data was collected by survey methods. Data collected was secondary data obtained from the data and the books of financial statements as well as interviewed with cooperative leader and treasurer. Data used from were data 2008 to 2013.The research result showed that Credit Cooperative “Kamangtawaya”, Sendangan Village Remboken Sub District was good enough in managing their short-term liabilities, current ratio obtained by the cooperative is still in the normal phase that was is above 100%. So that the savings and Credit Cooperative Kamangtawaya still able to meet its short term obligations.
SERANGAN HAMA PUTIH PALSU Cnaphalocrosis medinalis GUENEE. PADA TANAMAN PADI SAWAH DI KECAMATAN RANOYAPO KABUPATEN MINAHASA SELATAN Vera E. Tangkilisan; Christina L. Salaki; Moulwy F. Dien; Elisabet R.M. Meray
COCOS Vol. 5 No. 1 (2014)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v5i1.4858

Abstract

ABSTRACTThe study aims to determine the pest Cnaphalocrosis medinalis on rice crops in the vegetative phase Ranoyapo districts, South Minahasa Regency. The study uses a survey method in 4 locations / villages in the district Ranoyapo: Ranoyapo Village, West PoopoVillage, North Poopo Village, and MopoloVillage. Each location/village rice fields specified 3 (replicates) as the observation and sampling. Sampling was conducted on each diagonal fields. In each sub-plot clumps of rice as determined 5 sampling sites. Implementation of sampling vegetative phase in rice plants once a week for 6 weeks. The results showed that C. medinalis Ranoyapo has spread in the district with the highest attack found in Ranoyapo village location reached 18.66 %, after reaching West Poopo 8.07%, North Poopo reached 4.29% and Mopolo reached 4.07 %. C. medinalis highest percentage of attacks found in plants aged 6 weeks after planting (mst) which reached 20.66 % , then 5 mst old plants reached 13.55 % , 4 mst old plants reached 10.88 % , and the plant was 3 mst reached 7.55% , while the old plants 1 and 2 mst not encountered attacks. The highest population of C. medinalis found in location for Ranoyapo village reaching an average of 12.7 tail , then the village of West Poopo 4.3 tails , North Poopo Village 3.5 tail , and the tail 3.2 Mopolo village.Key words : Cnaphalocrosis medinalis, Rice field
JENIS DAN KEPADATAN POPULASI SERANGGA PADA PERTANAMAN PADI SAWAH FASE VEGETATIF DI DESA TALAWAAN KECAMATAN TALAWAAN KABUPATEN MINAHASA UTARA Nintang T. Umboh; Betsy A.N. Pinaria; Jusuf Manueke; Dantje Taroreh
COCOS Vol. 5 No. 1 (2014)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v5i1.4859

Abstract

ABSTRACTThis research aims to know the type and density of the population of insects in paddy rice field in the village of vegetative phase Talawaan Subdistrict of North Minahasa Regency Talawaan. This study used a survey method and direct observation in field. Paddy rice fields used are varieties of musi. Paddy rice acreage is divided into five plot observations that spread diagonally with a size of 3 x 5 meters. The arrest of insect pests is done using the insect nets swung as much as 5 times the double swing at each plot. Insects obtained is then identified by using insect identification key. Things that were observed in this study: Morphology of insects, and insect population count was found. Results of the study showed that there are 8 types of insect pests found i.e. depunctalis, Cnaphalocrosis medinalisNymphula, Scirpophaga (Tryporyza) Leptocorisa oratorius, inotata, Scotinophora coartata, Nephotettix spp., Nilaparvata lugens and Valanga sp. Where the average highest populations of insect pests found in field is Nephotettix spp. i.e. 11,87 tail., L. oratorius 9,33 tail; N. depunctalis and S. innotata 7 tail, 67, N. lugens 4.4 tail, tail 3.27 Valanga spp, C. medinalis 2.93 tail, and on average the lowest population in the meet, the situation is S. coartata which is 2.47 tail.Keywords : Population, insect pests, rice field
Analisis Pendapatan Pedagang Bunga Hias di Kelurahan Kakaskasen Kota Tomohon Licky N. Rapar; Celsius Talumingan; Esry O.H. Laoh; Eyverson Ruauw
COCOS Vol. 5 No. 1 (2014)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v5i1.4860

Abstract

ABSTRACTThe objective of this study is to determine the income and the efficiency of Ornamental Flower Merchants in the Village of Kakaskasen, Tomohon City. This research is conducted in Kakaskasen Village, Tomohon City for 2 (two) months in November to December 2012. The data used is primary data obtained through direct observation and interviews with Ornamental Flower mercahants based on a questionnaire in the form of questionnaires, and secondary data obtained from the relevant agencies Agriculture Department, the Central Statistics Agency (BPS) Tomohon and Kakaskasen Village Office. The data were analyzed descriptively and presented in tabular form. The results showed that the income of Ornamental Flower Merchants in the Village of Kakaskasen Tomohon City in one production process is Rp 6,694,673.61 /merchant and Rp 18,093,712.46/hectare. The efficiency of the Ornamental Flower Businesses from the R : C Analysis show value greater than one that is 4.29. This indicates that the Ornamental Flower Businesses in Kakaskasen Village Tomohon City is profitable, so it deserves to remain manageable even more developed.Key Word : the income of ornamental flower merchants, the R : C Analysis

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