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PEMANFAATAN EKSTRAK BIJI Barringtonia asiatica L. UNTUK PENGENDALIAN KEONG MAS PADA TANAMAN PADI DI DESA POPONTOLEN KECAMATAN TUMPAAN KABUPATEN MINAHASA SELATAN ., MARGONO; Manueke, Jusuf; Mamahit, Juliet M.E.; Rante, Caroulus S.
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
APLIKASI MAT DALAM PENGENDALIAN LALAT BUAH BACTROCERA SP. (DIPTERA : TEPHRITIDAE) PADA TANAMAN CABE Lengkong, Maxi; Rante, Caroulus S.; Meray, Merlyn
EUGENIA Vol 17, No 2 (2011)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/eug.17.2.2011.3533

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ABSTRACT   Research was aiming to determine the effectiveness of the attractant methyl eugenol + traps modification in the catch of species of fruit flies in the chilli plants at any given time and to identify the types of fruit flies trapped with methyl eugenol + traps modification on chilli crop acreage. The field research was conducted in the area of chilli crop in three places namely District Pineleng, Tompaso / Langowan and Modoinding. Observation number and type of fruit flies was performed at intervals of 2 weeks of observation for 3 months. The result showed that the number of fruit fly caught or trapped dead at 30 traps set in chilli crop acreage was 1278. The highest trapped was 164 whereas the lowest trapped was 89. The number of male fruit flies trapped was high implying that reduction of male fruit fly population in the field. There were five types of fruit flies identified from area of Pineleng, Tompaso and Modoinding namely Bactrocera umbrosa Fabricus, Bactrocera dorsalis (Hendel), Bactrocera philippinensis, Bactrocera carambolae, and Bactrocera sp. The five types were attracted to methyl eugenol. Key words : MAT (male annihilation technique), Bactrocera umbrosa Fabricus, B. dorsalis (Hendel), B. philippinensis, B. carambolae
DIAGNOSIS DAN INSIDENSI PENYAKIT ANTRAKNOSA PADA BEBERAPA VARIETAS TANAMAN CABE DI KOTA BITUNG DAN KABUPATEN MINAHASA Ratulangi, Max M.; Sembel, Dantje Terno; Rante, Caroulus S.; Dien, Moulwy F.; Meray, E. R; Hammig, M.; Shepard, M.; Carner, G.; Benson, E.
EUGENIA Vol 18, No 2 (2012)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/eug.18.2.2012.3561

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ABSTRACT   This study was carried out in the laboratory and in the field at City of Bitung, Districts of Minahasa.  The cause of disease was studied in the laboratory and the percentage of insidence of disease was carried out in the field. Results showed that the cause of antracnose disease in North Sulawesi was Colletotrichum gloeosporioides (Penz.) Penz & Sacc. in Penz (Cg). Computation of the antracnose disease insidence showed that variety white hot chili has the highest disease insidence which is 16.50% followed by green hot chili 10.13%, and the lowest is curled chili which is 9.03%.  The different in this rate is affected by pathogen, host plant and the environment. Field observation showed that this disease has already spread at all chili plantation at the City of Bitung and District of Minahasa. Keywords: Chili, antracnose, Colletotrichum gloeosporioides
JENIS DAN POPULASI SERANGGA HAMA PADA BERAS DI GUDANG TRADISIONAL DAN MODERN DI PROVINSI GORONTALO Ilato, Jems; Dien, Moulwy F.; Rante, Caroulus S.
EUGENIA Vol 18, No 2 (2012)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/eug.18.2.2012.3564

Abstract

ABSTRACT The quality and quantity of rice as a source of food for most of Indonesian people are closely connected with the activity of insect pests in Warehouse. This study aims to determine the species and insect pests populations on Rice at Traditional and Modern Warehouse in Province of Gorontalo. The study used a survey method shelter/rice warehouse in Mootilango district, Boliohuto District, and Tolangohula district, Gorontalo province. Sampling was conducted in a purposive sampling is to take a sample of the suspected rice pests. Sampling was carried out 4 times with a time interval of 2 weeks. The research found six species of insect pests on rice commodities in Gorontalo regency consisting of 5 species of the order Coleoptera and 1 type of the order Lepidoptera. The results show that the identification of insect pests found are Sitophilus oryzae (Coleoptera; Curculionidae), Tribolium castaneum (Coleoptera: Tenebrionidae), Carpophilus hemipterus (Coleoptera: Nitidulidae) Oryzaephilus sp. (Coleoptera; Silvanidae), Ahasverus sp. (Coleoptera; Cucujidae), Corcyra cephalonica (Lepidoptera; Pyralidae). Average highest pest insect populations, respectively S. oryzae (54.60 individuals), Tribolium sp. (13.85 individuals), Oryzaephilus sp. (4.52 individuals), Ahasverus sp. (3.42 individuals), Corcyra sp. (2.42 individuals) and C. hemipterus (6.94 individuals), while the highest populations of insect pests found in traditional 16.40 modern warehouses 12.34 individual Keywords : insect pests, rice, traditional and modern werehouse
VIABILITAS PUPA PARASITOID Diadegma semiclausum Hellen (Hymenoptera : Ichneumonidae) BERDASARKAN LAMA PENYIMPANAN DI LEMARI PENDINGIN Hutumoy, R. Irsan Dj.; Rante, Caroulus S.; Lengkong, Maxi
COCOS Vol 2, No 6 (2019)
Publisher : COCOS

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Abstract

ABSTRACT This study aims to determine the viability of the D. semiclausum parasitoid pupae on P. xylostella larvae stored in the refrigerator. The results of this study are expected to provide information about the viability of D. semiclausum parasitoid pupae which are stored in refrigerators so that they can assist farmers in carrying out biological control. The study was conducted in the area of farmers' cabbage growing in the Kakaskasen II Village, Tomohon City and the Entomology and Plant Pest Laboratory, Faculty of Agriculture, Sam Ratulangi University. The research lasted for four months from July to October 2019. The study used a survey method on farmers' cabbage flower plants. The location of the collection of P. xylostella and D. semiclausum pupae was carried out by purporsive sampling, which is collecting pupae where there are flower cabbage plants in Kakaskasen II Village. In the initial stage, pupae collection is carried out with the aim of propagation of P. xylostella pests. Furthermore, if the larvae of P. xylostella have entered the initial instar, then the collection of D. semiclausum parasitoid pupae with the aim of being released in a cage to paralyze the P. xylostella larvae. The results showed that the parasitoid pupa can survive in the refrigerator until the 34th day with viabiltas of 10.00%. Furthermore, on the 36th day until the 42nd day, the D. semiclausum parasitoid pupae were no longer found that had successfully survived into adult insects. When related to the duration of storage of the D. semiclausum parasitoid pupae in the refrigerator with pupa viability, the best pupae storage time is on the 22nd day with the percentage of parasitoid pupa viability of 75.00%. Keywords : Viability, P. xylostella, D. semiclausum, Tomohon
INSIDENSI DAN SEVERITAS PENYAKIT BERCAK DAUN PADA TANAMAN KACANG TANAH DI DESA LOWIAN DAN LOWIAN SATU KECAMATAN MAESAAN KABUPATEN MINAHASA SELATAN Rori, Sammy S.N.; Manengkey, Guntur S.J.; Salaki, Christina L.; Rante, Caroulus S.
COCOS Vol 4, No 6 (2014)
Publisher : COCOS

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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
PARASITISASI Diadegma semiclausum Hellen (HYMENOPTERA: ICHNEUMONIDAE) TERHADAP HAMA Plutella xylostella Linn. (LEPIDOPTERA: YPONOMEUTIDAE) PADA TANAMAN KUBIS DI DESA RURUKAN DAN KAKASKASEN II KOTA TOMOHON Manopo, Rifal O.; Rante, Caroulus S.; Dien, Mouwy
COCOS Vol 1, No 2 (2019)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v1i2.24322

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ABSTRACT  The research aimed to determine the parasitization of D. semiclausum against P. xylostella in cabbage plants in Rurukan and Kakaskasen II Village, Tomohon City.  The research lasts for five months, from October 2018 to February 2019.  The study used a survey method that was carried out directly on farmers' cabbage plants.  Determining the location of collecting pupa samples is done by purporsive sampling, which is taking samples where there are cabbage plants in both locations, namely Rurukan and Kakaskasen II Village.  Sampling for observation of the percentage of parasitization was carried out directly, namely by taking pupae in the cabbage crop. Samples were placed in used container containers and covered with azahi cloth and then taken to the Entomology and Plant Pest Laboratory, the Sam Ratulangi University of Agriculture Faculty of Manado to be maintained and observed every day.  The results showed that the parasitization of D. semiclausum against pests of P. xylostella in Rurukan and Kakaskasen II villages was 25.57% and 24.76% respectively.  Keywords :  Cabbage plant, Plutella xylostella, Diadegma semiclausum
Serangan Hama Penggerek Cabang Mangga (Rhytidodera sp.) (Coleoptera: Cerambycidae) di Kelurahan Manembo-Nembo Kota Bitung Walalangi, Mieke; Tulung, Max; Kaligis, James B.; Rante, Caroulus S.
COCOS Vol 6, No 16 (2015)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v6i16.9514

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ABSTRACT  The study aims to determine the percentage of the branch borer attack on mango crops in the village of Manembo-nembo, Bitung.  The study lasted for six months, from July 2014 to December 2014. The study was conducted by surveys with purporsive sampling.  On plant mango, symptoms were observed branches showing on that were attacked and not attacked.  Mango crop was considered infected if found bored sign on branches. Observations were made on three types of mangoes namely Mango Manalagi, Arumanis, and Lilin, in which observations were conducted four times. The results showed that the mango crops Manembo-nembo were attacked by borer branches, Rhytidodera sp. The highest percentage during the four observations found on Arumanis Mango attack plants by 21.44% in the first observation, Manalagi of 16.20% at the first observations and the lowest of 9.28% on Lilin Mango in the fourth observation.  Keywords : Manggo Arumanis, Manalagi,  Lilin  Rhytidodera sp.
POPULASI DAN SERANGAN HAMA PUTIH PALSU Cnaphalocrosis medinalis (Guenee) PADA TANAMAN PADI SAWAH DI KECAMATAN DUMOGA TIMUR KABUPATEN BOLAANG MONGONDOW Kilala, Anggreini; Salaki, Christina L.; Rante, Caroulus S.; Kaligis, James B.
COCOS Vol 6, No 13 (2015)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v6i13.8661

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ABSTRACT The research aims to determine the population and attacks Cnaphalocrocis medinalis on paddy rice vegetative phase in District East Dumoga, Bolaang Mongondow. Results are expected to be used as consideration in the preparation of pest control strategies C. medinalis on rice crops in the future. Research using survey method in several centers of rice cultivation in the district of East Dumoga Bolaang Mongondow, then set the 3 villages as research locations or as a sampling. Location criteria based on the presence of the rice research under the age of one week. Sampling using Method Diagonal slices and set up five sub-plot. Observations population conducted by randomly selecting ten clump of rice plants in each sub-plot. C. medinalis larvae contained in the leaf roll is taken, and then collected in a bottle containing 70% alcohol. Samples are labeled according to location and time of uptake, later identified in the Laboratory of Entomology and Pest Plants, Faculty of Agriculture, University of Sam Ratulangi. Observations percentage of attacks carried out by observing each of the 200 plants per sub-plot. Clumps were attacked recorded and calculated to determine the percentage of C. medinalis attack. Sampling was performed four times at intervals of two weeks. The results showed that the population of pests C. medinalis varies at different locations and the highest research found in two locations in the village Dumoga which reached an average of 15.33 tail, then in the village Dumoga Three reached an average of 13.66 tail and in the village of Dumoga Four reached an average of 5.33 birds. Observations highest percentage of attacks was found in the village of Dumoga Two sample sites, reaching 10.54%, then the village of Three Dumoga 9.95% and the lowest is Village Dumoga Four reached 1.53%.  Keywords : Cnaphalocrosis medinalis, percentage of attacks and populations 
SERANGAN HAMA ULAT KROP (Crocidolomia pavonana F.) PADA TANAMAN KUBIS (Brassica oleracea var. capitata L.) DI KELURAHAN KAKASKASEN II, KECAMATAN TOMOHON UTARA, KOTA TOMOHON Badjo, Rany; Rante, Caroulus S.; Meray, Elisabeth R.M.; Assa, Berty H.
COCOS Vol 6, No 14 (2015)
Publisher : COCOS

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ABSTRACT The study aimed to find out the attacks of caterpillar pests on cabbage crop in the Village of Kakaskasen II, District of North Tomohon, Tomohon.  Research has been conducted on cabbage in the Village of Kakaskasen II, Tomohon.  The study lasted four months, which began in March 2015 until July 2015. The study was conducted by surveys using sampling methods of purporsive sampling.  Cabbage plants showing symptoms were observed.   Cabbage plants with symptoms counted as attacked by caterpillars, although no larvae found.  Data were observed in this study were (i) symptoms of attacks by caterpillar pest on the crop, (ii) the number of part of the plant showing symptoms and no symptoms, (iii) cabbage crop weight.  Parts of plants that were observed for the caterpillar attack were the leaf, the crop, the crop and leave, and the growing point.  The results showed that the percentage of attacks of caterpillar crop of C.  pavonana in Village of Kakaskasen II reached 48.83 percent.  The crop part showed the highest pecent of attack, which was 16.84 percent, followed by the crop and leave parts of 15.24 percent, and then the growing point parts by 13.61 percent, and the lowest was 3.14 percent was found on the leaf part.  The average weight of cabbage crop are attacked by pests caterpillar crop, C. pavonana lower (1.44 kg) compared to cabbage crop is not affected (3.34 kg ). Keywords: Crocidolomia pavonana, Brassica oleracea var. capitata  L., Tomohon.