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Christina Salaki
Universitas Sam Ratulangi
Religion Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemistry Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Electrical & Electronics Engineering Environmental Science Health Professions Immunology & microbiology Library & Information Science Mathematics Medicine & Pharmacology Physics Public Health Social Sciences Other

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POPULASI SERANGGA PADA TANAMAN CABAI (Capsicum annuum varlongum) DENGAN MENGGUNAKAN PUPUK ORGANIK DAN ANORGANIK DI DESA TONSEWER KECAMATAN TOMPASO DUA Natalia Samba; Jantje Pelealu; Christina Salaki; Henny V.G. Makal
COCOS Vol. 5 No. 3 (2014)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v5i3.5960

Abstract

ABSTRACTThe research was conducted in the village of Subdistrict Tonsewer Tompaso Two for three months ie from July to October 2013. Laboratory studies conducted at the Laboratory of Entomology, Faculty of Agriculture and Plant Pests and field Unsrat Manado which is in District Tompaso. Land used for the observation that the land already planted chili farmers. The land area is used for observation of 15 x 3 m plots consisting of 6 which is then divided by three beds for the treatment of organic fertilizer and inorganic fertilizer plots 3 and 3 Plots for chemical fertilizers and each plot containing 22 tress chili plants. . In studies conducted at the plant chili with organic and inorganic fertilizer use are the following pests: Insects that bersosiasi on pepper plants that use organic and inorganic fertilizers, namely the Order Hymenoptera (vespidae family, Family: ichneuimonidae), Arachnida Order (family Araneidae), the Order Diptera (family Tephridae), Order Hemiptera (family: Alydidae), Order Coleopteran (family: Scarabidae) Order Homoptera (family: Aleyrodidae), Order Lepidoptera (family: Noctuidae), Aphids and Insects-Insects that dominate the area pepper plants that use organic fertilizers and inorganic fertilizers are Diptera (family Tepridae), Aphids (Family Aphididae) and Coleoptera (family Scarabidae). In this study there are enemies - namely natural enemies encountered spiders, and seranga - Insects such as Bemisia tabaci vectorKeywords : insect populations, chilli, Organic And Inorganic Fertilizers .
GEJALA DAN INTENSITAS SERANGAN HAMA KUTU DAUN (Chaetosiphon sp) PADA TANAMANSTROBERIDI KELURAHAN RURUKAN KOTA TOMOHON Zainudin Limbanadi; Juliet M.E. Mamahit; Christina L. Salaki; Guntur S.J. Manengkey
COCOS Vol. 6 No. 3 (2015)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v6i3.6934

Abstract

ABSTRACTStudy aims to determine the symptoms and the intensity of aphids the strawberry (Chaetosiphon sp) were held in the Village Rurukan Tomohon. This study was conducted over four months from February to May 2014. Study uses survey and observations of aphids and deliberate sampling on strawberry plants were observed.Field research was conducted in the area of planting strawberries and laboratory observations carried out at the Laboratory of Entomology and Plant Pests Faculty of Agriculture, University of Sam Ratulangi. Subplot observation intensity of the attacks on strawberry crop land has a length of 2 m and a width of 1 m to 12 m long beds. In each of the beds made two subplots, each subplot were taken 20 plants.The results showed that the strawberry aphids (Chaetosiphon sp) affects plant growth both in the vegetative and generative phase of the insect in the vegetative phase of the plants become stunted, and attacks on the generative phase led to the formation of flowers and fruit inhibited. Average intensity of the attacks in of strawberry aphidsRurukan Tomohon increased every week with the highest intensity in the sixth week, namely 46.0% plants affected in the first observation and 55.0% plants affected in the second observation.Keywords: Symptoms, attack intensity, Chaetosiphon sp.
PEMANFAATAN JAMUR Beauveria bassiana TERHADAP SERANGGA Aphis sp PADA TANAMAN CABE Bastian P. Wowiling; Christina Salaki; Henny Makal; Max Tulung
COCOS Vol. 6 No. 6 (2015)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v6i6.7971

Abstract

ABSTRACT  The study aims to determine the effect of the concentration of spores of the fungus Beauveria bassiana against Aphis sp insect mortality in the laboratory. implementation of the research carried out for three months from July to September 2014. Research using the method Completely Randomized Design (CRD) with four treatments, using B. bassiana spores concentration of 104, 105, 106 and control. Plants used was pepper plants. Each plant with different spore concentrations, in use ten tail pest Aphis sp. Observations on doing every day for one week, with a look at the mortality of each treatment. The results showed that the test insect mortality was highest at day 4 observation with treatment reaches 106 (80%) at follow treatment 105 (52.5%) and treatment of 104 (0%). Observation day 5 mortality in the test insect reaches 106 treatment (20%), then treatment of 105 (32.5%), and treatment of 104 (10%). The results showed that the test insect mortality was highest at day 4 observation with treatment reaches 106 (80%) at follow treatment 105 (52.5%) and treatment of 104 (0%). Observation day 5 mortality in the test insect reaches 106 treatment (20%), then treatment of 105 (32.5%), and treatment of 104 (10%). Observation day 6 the highest mortality of test insects found in treatment reaches 104 (90%), treatment of 105 (15%), and treatment of 106 (0%). In the control mortality was not found, but an increase in population.  Keywords : Beauveria bassiana, Chili Plants, and Aphis sp
POPULASI DAN SERANGAN HAMA PUTIH PALSU Cnaphalocrosis medinalis (Guenee) PADA TANAMAN PADI SAWAH DI KECAMATAN DUMOGA TIMUR KABUPATEN BOLAANG MONGONDOW Anggreini Kilala; Christina L. Salaki; Caroulus S. Rante; James B. Kaligis
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

Abstract

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 
POPULASI DAN INTENSITAS SERANGAN HAMA WERENG HIJAU Nephotettix virescens (HOMOPTERA; CICADELIDAE) DI KECAMATAN TOMOHON BARAT KOTA TOMOHON Tuldenigsri H. Gigir; Christina Salakie; Emmy Senewe
COCOS Vol. 6 No. 15 (2015)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v6i15.8854

Abstract

ABSTRACT   In North Sulawesi, there are several major insect pests of rice plants, one of which is green leafhoppers which often cause damage to the rice crop. Aside from being a green planthopper pests also act as an insect vector that can transmit the disease Tungro. The study aims to determine the intensity of pest populations of green leafhoppers N. virescens on rice crops in West Tomohon sub district. The research was conducted in two villages namely Tara-tara and Woloan in the District of West Tomohon Tomohon. The research was conducted from December 2014 through April 2015. This study used a survey method in two villages, namely Tara-tara and Woloan West Tomohon sub district Tomohon. The results showed that the population of green leafhopper pest Nephoettix virescens on rice crops in the district of West Tomohon, Tomohon, is highest in sub Tara tara on observations II, as many as 8.5 tails and lowest in sub Woloan on observations IV, namely 2.3 tail. In general, the population of planthoppers in paddy rice crops in the district of West Tomohon, Tomohon highest average of Tara-tara Village, which is 5.8 tails Woloan Village only 4.9 tails. The intensity of the green leafhopper pest N. virescens on rice crops in the district of West Tomohon, Tomohon, is highest in sub Tara-tara on observations IV, amounting to 29.83 % and the lowest in the sub Woloan the first observation, namely 9.83 %. In general, the intensity of plant hopper pest on rice crops in the district of West Tomohon Tomohon highest average in Tara-tara Village, which is 24.89 % and Woloan Village only 14.89 %.  Keyword :  Freen Planthopper Nephotettix virescens, Paddy, Tomohon
SERANGAN HAMA PENGGEREK BATANG CENGKEH Hexamithodera semivelutina Hell. DI DESA KUMELEMBUAI KABUPATEN MINAHASA SELATAN Gladys M. Tumanduk; Betsy A.N. Pinaria; Christina L. Salaki
COCOS Vol. 8 No. 5 (2017)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v1i4.15700

Abstract

ABSTRACKCloves (Syzigium aromaticum. L) is a cash crop that has a high economic value in Indonesia. One type of plant pests that attack plants clove is the clove stem borer (H. semivelutina).The study aims to determine the clove stem borer attack in the village of Kumelembuai. The research was carried on in the village Kumelembuai for 3 months from October to December 2016. The research was conducted by survey method. Samples were observed total 15 trees randomly selected plants. Observations were made 2 weeks for 3 months. Things are observed number of trees and the number of hoist stem borer are active and which are inactive and the percentage of stem borer attack cloves begin the first observations until the sixth observation. The results showed there were 13 trees affected with 55 holes hoist pests which are no longer active in the garden Wukir, in the garden there are 11 trees affected Maruasey and 43 holes that are no longer active. The highest percentage of attacks seen in the garden Wukir by 73.33% compared with the number of attacks in the garden Maruasey percentage with 33.33% total percentage of attacks.
JENIS DAN POPULASI LALAT BUAH Bactrocera spp. (DIPTERA : TEPHRITIDAE) BERDASARKAN WAKTU TANGKAP PADA AREAL TANAMAN CABAI MERAH DI KOTA TOMOHON Jantje H. Manangka; Prof.Dr.Ir. Christina L. Salaki, MS.; Ir. Caroulus S. Rante, MS
COCOS Vol. 8 No. 5 (2017)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v1i4.15797

Abstract

ABSTRACTThis study aims to determine the species and population of fruit flies Bactrocera spp. based on different catch time in red chili area at village of Kakaskasen II, Tomohon Utara Subdistrict, Tomohon City. The design used was Randomized Block Design (RBD) which consisted of three treatment time of catching that is treatment A, time period of catch at06.00-12.00; Treatment B, the catch time period at 12.01-18.00, and treatment C, the catch time period at 19.01-05.00. The type of fruit fly is identified to the species level. The population of fruit flies collected were analyzed by analysis of variance (ANOVA) and if the treatment obtained was significantly different then it would be followed by BNJ test.The results showed that the types of fruit flies caught using steiner type traps with methyl eugenol attractants based on the treatment of catch time during observations 1 to 4 in the chili plant area were seven species, namely Bactrocera dorsalis (Hendel), Bactrocera umbrosa (Fabricius), Bactrocera Papayae Drew & Hancock, Bactrocera synnephes (Hendel), Bactrocera carambolae (Drew & Hancock), Bactrocera Facialis (Coquillet)), and Bactrocera sp. The catch time for the highest number of trapped fruit flies is found at the treatment at 06.00-12.00 and12.01-18.00.Key words: Fruit Fly Types, Methyl Eugenol (Petrogenol), Catch Time
Pemanfaatan Ekstrak Daun Pepaya (Carica papaya L.) terhadap Hama Spodoptera frugiperda J.E. Smith (Lepidoptera: Noctuidae) Christian F.A. Rumende; Christina L. Salaki; James B. Kaligis
COCOS Vol. 13 No. 1 (2021): EDISI JANUARI-MARET 2021
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v2i2.32482

Abstract

ABSTRACTOne of the pests that are detrimental to maize farmers today is the armyworm (S.frugiperda) which attacks maize crops. In general, farmers use chemical insecticides whichare effective but very dangerous to the health of the body and the environment. Carica papayais a plant whose leaves can be used as a botanical insecticide because the secondarymetabolite compounds in these plants can be used as insecticides. The purpose of this studywas to determine the effect of papaya leaf extract on the mortality of S. frugiperda larvae.The method used is data analysis in the form of LC50. In this test using a solutionconcentration of 100 grams/L, 300 grams/L, 500 grams/L, and 700 grams/L with fourrepetitions. The results of the observation of mortality from 24 hours to 96 hours aftertreatment with a solution concentration of 700 grams/L were the solutions that had thegreatest mortality, namely 100% and from the LC50 calculation, the value was 35.457%.This is due to the content of papaya leaf extract which is gastric poison, respiratory poisonand contact poison that can kill S. frugiperda larvae. Papaya leaves can be an alternative toinsecticide for controlling the pest of S. frugiperda.Keywords: Botanical Insecticide, LC50, Mortality.
Aplikasi Metarhizium anisopliae Dan Azadirachta indica A. Juss Untuk Mengendalikan Nephotettix virescens D. Sebagai Serangga Vektor Penyakit Tungro Pada Tanaman Padi Yukiko Susandi; Christina Leta Salakia; Jackson Fraky Watung
Jurnal MIPA Vol. 12 No. 2 (2023): Artikel
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35799/jm.v12i2.49072

Abstract

Wereng hijau (Nephotettix sp.) diketahui merupakan serangga vektor penyakit tungro pada tanaman padi. Pengendalian hayati dengan memanfaatkan jamur entomopatogen berpotensi untuk dikembangkan, contohnya jamur entomopatogen M. anisopliae. Pengendalian lain yang juga dapat dilakukan yaitu dengan penggunaan pestisida nabati, seperti esktrak daun mimba. Penelitian ini bertujuan untuk menganalisis pengaruh aplikasi jamur M. anisopliae sebagai jamur entomopatogen dan aplikasi ekstrak daun mimba terhadap mortalitas N. virescens.  Hasil pengamatan dari aplikasi jamur entomopatogen dan ekstrak daun mimba pada beberapa taraf konsentrasi memiliki efek yang mematikan terhadap serangga N. virescens. Mortalitas tertinggi dari aplikasi jamur entomopatogen M. anisopliae berada pada kerapatan spora 108 per ml (P3) dan 109 per ml (P4) yaitu 100 %. Mortalitas tertinggi dari aplikasi ekstrak daun mimba berada pada perlakuan 150 gr (P3) dan 200 gr (P4) yaitu mencapai 100 %. Serangga N. virescens setelah diaplikasikan dengan jamur entomopatogen M. anisopliae menunjukkan perilaku dengan gerakan melambat kemudian mati. Perilaku serangga saat aplikasi ekstrak daun mimba menunjukkan penurunan daya makan hingga perkembangan yang melambat kemudian serangga mati. Berdasarkan penelitian yang telah dilakukan, dapat dilihat bahwa aplikasi jamur entomopatogen M. anisopliae dan aplikasi pestisida nabati ekstrak daun A. indica, keduanya dapat menyebabkan mortalitas pada serangga N. virescens Green leafhoppers (Nephotettix sp.) are known to be vectors of tungro disease in rice plants. Biological control by utilizing entomopathogenic fungi has the potential to be developed, for example the entomopathogenic fungus M. anisopliae. Another control that can also be done is by using vegetable pesticides, such as neem leaf extract. This study aims to analyze the effect of the application of M. anisopliae fungus as an entomopathogenic fungus and the application of neem leaf extract on the mortality of N. virescens. The results showed that the application of entomopathogenic fungi and neem leaf extract at several concentration levels had a lethal effect on the insect N. virescens. The highest mortality from the application of the entomopathogenic fungus M. anisopliae was at a spore density of 108 per ml (P3) and 109 per ml (P4), namely 100%. The highest mortality from the application of neem leaf extract was in the treatment of 150 gr (P3) and 200 gr (P4), which reached 100%. After being applied with the entomopathogenic fungus M. anisopliae, the insect N. virescens showed behavior with slowed movements and then died. Insect behavior when the application of neem leaf extract showed a decrease in eating power until development slowed down and then the insects died. Based on the research that has been done, it can be seen that the application of the entomopathogenic fungus M. anisopliae and the application of botanical pesticides of A. indica leaf extract, both can cause mortality in the insect N. virescens.
PKM Efektivitas Metarhizium sp. untuk Mengendalikan Spodoptera frugiperda pada Cabai Rawit (Capsicum frutescens L.) di Desa Rurukan Kecamatan Tomohon Timur Kota Tomohon Montong, Vivi B; Salaki, Christina L; Krisen, Jeane Krisen
Buletin Dharmas Andalas Vol. 2 No. 1 (2025): Buletin Dharmas Andalas
Publisher : Departemen Budidaya Tanaman Perkebunan, Fakultas Pertanian, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/bda.v2i1.27

Abstract

Spodoptera frugiperda merupakan salah satu hama penting pada cabai rawit di kota Tomohon. Petani masih tergantung pada penggunaan insektisida sintetik untuk mengendalikan hama tersebut, padahal sudah ada cara pengendalian ramah lingkungan yakni penggunaan biopestisida seperti Metarhizium sp. Metode yang digunakan dalam Program Kemitraan Masyarakat (PKM) ini adalah bentuk penyuluhan. Berdasarkan hasil analisis, didapati peserta yang sangat antusias mengikuti kegiatan, menyimak, merespon, dan menanggapi secara positif terhadap pemaparan materi oleh narasumber. Selain itu pula,terjadi peningkatan pengetahuan peserta dan penguasaan akan materi penyuluhan, ditandai dengan 16 orang peserta yang memahami dari 20 peserta dan terjadi kenaikan pemahaman peserta dari nilai pra kegiatan (pre-test) ke akhir kegiatan (post-test) sebesar 65%.
Co-Authors Anggreini Kilala Anggreini Kilala, Anggreini Ariyane O.S. Siwu Assa, Berty Bastian P. Wowiling Bastian P. Wowiling, Bastian P. Betsy A.N. Pinaria Carla F. Kairupan Caroulus S. Rante Christian F.A. Rumende Christian L. Kaparang Daisy S. Kandowangko Dantje T Sembel Dantje Tarore Elisabet R.M. Meray Emmy Senewe Erwin G Kristanto Evie Paendong Gladys M. Tumanduk Guntur S.J. Manengkey Hans Huijbregts Henny Makal Henny Makal, Henny Henny V Makal Henny V.G. Makal Herlina I. S. Wungouw Herlina Wungouw Inri Wowor Ir. Caroulus S. Rante, MS Jackson Fraky Watung Jackson Watung Jackson Watung James B. Kaligis Jantje H. Manangka Jantje Pelealu Jantje Pelealu Jaya, Hendra K. Jesmandt Situmorang Jesmandt Situmorang Jimmy Rimbing Juliet E.M. Mamahit Juliet M.E. Mamahit Juliet M.E. Mamahit Krisen, Jeane Krisen Kumolontang, Geyby ., LANGKAH SEMBIRING Langkah Sembiring Makal, Henny V Makal, Henny V. Makkiah, Makkiah Manginstar, Christian O. Max ., Tulung Max Tulung Montong, Vivi B Montong, Vivi B. Moulwy F. Dien Natalia Samba Niken Handayani Niken Handayani Niken Satut Nur Handayani Noni N. Wanta Nurdjannah J. Niode Oddi R Pinontoan Odi R. Pinontoan Rafel S. Saroinsong Redsway Maramis Rivo Manopo Rondonuwu, Frans. B. Sammy S.N. Rori Sherlij Dumalang Threis Umboh Trina E. Tallei, Trina E. Tuldenigsri H. Gigir Tulung, Max ., Vera E. Tangkilisan Washliyah, Sitti Waywind Soewarno Yukiko Susandi Zainudin Limbanadi