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Inventarisasi Parasitoid Hama Tanaman Padi Sawah di Kabupaten Minahasa Utara Ariyane O.S. Siwu; Jantje Pelealu; Christina L. Salaki; Noni N. Wanta
COCOS Vol. 2 No. 3 (2013)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v2i3.1513

Abstract

ABSTRACTInsect parasitoids are small or as large as the host to parasite and off the host. The research was conducted in lowland rice planting area in North Minahasa regency. Research purposes to determine the type and parasitoid populations on rice crop pests in sub Kauditan, Talawaan, and Dimembe. The research was done by sweeping using insect net swing of 20 times on the location of paddy rice crops, sampling is done three times at intervals of two weeks representing all phases of rice growth was identified in the laboratory and then analyzed descriptively. The results showed that the insect parasitoid found was of the Order Hymenoptera and Diptera and in different types and each sub-population, namely, District Kauditan there are 19 types, 19 types Talawaan, and Dimembe13 types. Parasitoids Telenomus spp. average of 6.5 tail in Kauditan, Dimembe 4.5 tail, while the tail Talawaan 3.6 Apanteles sp. average of 6.5 in sub Dimembe tail, Talawaan 6 tails, and tails Kauditan 3.8.Keywords :Parasitoids, Hymenoptera, Diptera, Rice plants
JENIS DAN POPULASI SERANGGA HAMA YANG BERASOSIASI PADA TANAMAN KENTANG (Solanum tuberosum L) DI KECAMATAN MODOINDING Audy R. Bororing; Juliet M.E. Mamahit; Daisy S. Kandowangko; Noni N. Wanta
COCOS Vol. 6 No. 6 (2015)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v6i6.8041

Abstract

ABSTRACTThe research aims to find out about the type of insect pests population in potato plants Solamun tuberosum L. in Modoinding, South Minahasa. The research was conducted on the potato plants in Modoinding, South Minahasa. The research was carried out by using the survey method on potato in Modoinding's villages, South Minahasa, such as Palelon Village, Makaaroyen Village, and Lineleyan Village. The sampling was carried out with a diagonal incision method that established of five sub-plot that is on the corner and the middle of the sampling sites. The sampling was done by using insect nets that swung above the potato crop for ten times the double swing. The netted insects are immediately put into the "killing bottle" then collected in 70% alcohol to be identified. Identifying the type of insect pests is done by using the facilities of the Entomology and Pest Plant Laboratory, Faculty of Agriculture, UNSRAT. The results of the research of the associated pests on potato was found about eight kinds of insect pests, such as Empoasca sp. 109.03, Drosophila sp. 37.03, Nesidiocoris sp. 34.11, Lirionyza sp. 10.72, Lygus sp. 4.47, Phthorimaea sp. 2.97, Antractomorpha sp. 1.61, and Epilachna sp. 0.69. The average of the highest populations of insect pests are found in Makaaroyen Village with 37.99, whereas in Palelon Village with 22.79, and the lowest is in rural Lineleyan Village with 14,49.Keywords: Population, Pest, Potato
POPULASI LARVA Plutella xylostella Linn. PADA TANAMAN KUBIS DI KELURAHAN PASLATEN KECAMATAN TOMOHON TIMUR KOTA TOMOHON Wailan M. Pandeirot; Noni N. Wanta; Betsy A.N. Pinaria
COCOS Vol. 6 No. 10 (2015)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v6i10.8229

Abstract

ABSTRACT This study aims to determine the pest populations of P. xylostella in cabbage plants in the Paslaten village East Tomohon Tomohon sub district. This research was carried out by making a demonstration plot with three sub-plots. The results showed that the population of P. xylostella larval instars three and four on cabbage in the Village Paslaten East Tomohon Tomohon sub district in the rainy season ranged from 0 to 0.73 individual crop. P. xylostella larvae population is low from the first to the last observation. The low pest populations of P. xylostella at the time of the research is influenced by three factors: the first factor of climate especially rainfall with high intensity, the second factor D. eucerophaga parasitism natural enemies, and the third is a competition looking for food with other species of pests. Keywords: population, P. xylostella, Cabbage
KERAGAMAN JENIS SERANGGA PADA PERTANAMAN STROBERI DI DESA RURUKAN KOTA TOMOHON Estu N. Soeratman; Noni N. Wanta; Emmy Senewe; Robert W. Tairas
COCOS Vol. 6 No. 16 (2015)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v6i16.9589

Abstract

ABSTRACT This study aims to determine the diversity of insects associated to the cultivation of strawberries in Rurukan village of Tomohon. The sampling method used in this study is a relative method. Insect samples obtained from the arrest through some of pit fall traps and yellow sticky traps, were collected, counted and categorized to be identified. The diversity values calculated using the Shannon-Wiener diversity index (H) and Pielou evenness index (E). The results showed that insects caught in pit fall traps there are four of the Order is the order Hymenoptera, Coleoptera, Diptera and Orthoptera while insects found in yellow sticky traps consists of seven orders of 26 families and 27 species of insects. The seventh order of insects found are of the order Thysanoptera, Diptera, Hymenoptera, Coleoptera, Homoptera. Hemiptera, and Lepidoptera. Insects dominated by the order Diptera comprising 11 species (41%), Hymenoptera 10 species (37%), Hemiptera 2 types (7%) and the order Homoptera, Thysanoptera and Lepidoptera each 1 species (4%). The diversity index value of insects in the first and second observation is H '= 2.46 and H' = 2,45, or in other words that environmental conditions on strawberry plants in the village Rurukan in a state of being. While the value of the Evenness index (E ') to the first observation is E' = 0.79 and the second E '= 0.75. The results showed that the community of insects found on strawberry plants in rural areas Rurukan in stable condition with insects uniform
POPULASI HAMA WERENG HIJAU (Nephotettix spp.) DAN WERENG PUNGGUNG PUTIH (Sogatella furcifera Horv.) PADA TANAMAN PADI SAWAH DI KECAMATAN SONDER KABUPATEN MINAHASA Magdalena M. Kesek; Jantje Pelealu; Noni N. Wanta; Juliet M.E. Mamahit
COCOS Vol. 8 No. 1 (2016)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v7i1.11325

Abstract

ABSTRACT  The study aims to determine the abundance of green leafhopper (Nephotettix spp.) pest populations and white back planthopper (Sogatella furcifera Horv.) in rice in the District Sonder.  This research was conducted in two villages of Tincep and Kauneran during the six months from November 2014 through April 2015.  This  study used a survey method in rice crops in two villages. Every village observations determined three plots were divided into five subplots of observations for sampling. Research shows that green leafhopper populations in rice cultivation is  highest in the third observation, in the tincep village is 10,40 tail and village kauneran 9,33 tail. Lowest population occurred when the first observation in the Tincep village 5,06 tail and Kauneran 4,13 tail. Whereas the population of white back planthopper in rice crops in highest in the first observation that, in the village of kauneran 6,26 tail and in village Tincep 6,20 tail. Lowest population occurs on the last observation is at kauneran villages 2,20 tail and Tincep village 1,80 tail. Basides  green leafhopper and white back planthopper found also other insects both as pests and natural enemies.
KERUSAKAN BIJI KAKAO OLEH HAMA PENGGEREK BUAH (Conopomorpha cramerella Snellen) PADA PERTANAMAN KAKAO DI DESA MUNTOI DAN SOLIMANDUNGAN Saida F. Azim; Daisy S. Kandowangko; Noni N. Wanta
COCOS Vol. 7 No. 2 (2016)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v7i2.11972

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ABSTRACTThe research aimed to damage cacao seed of is cacao moth (C. cramerella Snellen) was carried plants cocoa in the village Muntoi and village Solimandungan.The research was carried two village : (1) Muntoi (2) Solimandungan. To find out damage cacao seed of cacao moth attack to do is cacao fruit fission with figuring quantity damaged seed, and quantity healthy seed. quantity cacao fruit gaze have a lot of 25 fruit from to each sample location and by dividing 4 repetetion with interval harvesting 1 month that starts from November 2015 to February 2016. The research in use purposive sampling (sampling was by randomly) with take fruit is ripeness with characterized shape of the fruit is yellow. Precentage of damaged seed cacao of is cacao moth in the village Muntoi 18,25 % and village Solimandungan 50,20%. Damaged seed was to fruit cacao to plants cacao in the village Muntoi and village Solimandungan because have a controller by pruning and garden sanitation.Keywords : C. cramerella, Cacao moth, Cacao.
SERANGAN HAMA Crocidolomia pavonana F. (LEPIDOPTERA: PYRALIDAE) PADA PERTANAMAN KUBIS DI RURUKAN, PASLATEN, DAN KUMELEMBUAI KOTA TOMOHON Rulin Datau; James B. Kaligis; Noni N. Wanta
COCOS Vol. 10 No. 6 (2018)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v1i4.24167

Abstract

ABSTRACT  This study aims to determine the percentage of attacks from caterpillar pest (C. pavonana) on cabbage plants in Rurukan, Paslaten and Kumelembuai, Tomohon City. The results of this study are expected to provide information about the attack of caterpillar pest (C. pavonana) on cabbage plants (B. oleracea) in Rurukan, Paslaten and Kumelembuai, Tomohon City.  The research was carried out in Rurukan, Paslaten and Kumelembuai, Tomohon City which lasted for 4 (four) months, namely from March 2019 to June 2019. The research was conducted in a survey using the purporsive sampling method. In cabbage plants, plants were directly observed which showed symptoms of being attacked. Cabbage plants are considered attacked by caterpillars when they show symptoms, although larvae are not found. Sampling is done 6 (six) times at intervals of 1 (one) week.  The results showed that the attack of caterpillar pest, C. pavonana in Paslaten, Rurukan and Kumelembuai showed varied attacks. The highest attack of C. pavonana was found in Rurukan, which was 50.58 percent and followed sequentially in Kumelembuai and Paslaten, which amounted to 31.58 percent and 23.75 percent.  Keywords :  Cabbage plant, Crocidolomia pavonana, Tomohon.
PERSENTASE SERANGAN HAMA Scirpophaga innotata Wlk PADA BEBERAPA VARIETAS TANAMAN PADI SAWAH DI DESA MOPUYA SELATAN KABUPATEN BOLAANG MONGONDOW Virginia V. Manoppo; Max Tulung; Noni N. Wanta
COCOS Vol. 14 No. 3 (2022): EDISI JULI-SEPTEMBER 2022
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v8i8.37325

Abstract

ABSTRACT Rice (Oryza sativa L.) is one of the most important food crops for the Indonesian population because it is a high-carbohydrate staple food. White rice stem borer (Scirpophaga innotata Wlk) is one of the plant pest organisms (OPT) that attacks lowland rice plants in Indonesia and has caused significant losses both qualitatively and quantitatively because this pest attacks rice plants at all stages of plant growth. from nursery to harvest. This study aims to determine the percentage of S. innotata attacks on several varieties of rice plants in Mopuya Selatan Village, Bolaang Mongondow Regency. The research method used is a survey method in the rice field area in the generative phase in one village with three different locations measuring one (1) hectare each and each location making five (5) sub-plots measuring 10 meters x 20 meters, In each subplot 150 clumps of plants were taken using a systematic random method (zigzag). Based on the results of the research conducted, the average percentage of S. innotata pests on the Serayu variety was 41.5%, the Siam-Siam variety was 43.0%, and the Inpari-9 variety was 38.2%. Based on the research that has been done, it can be concluded that the highest percentage of S. innotata attack on the Siam-siam variety was 43.0%, followed by the Serayu variety at 41.5%, and the Inpari-9 variety at 38.2%. In accordance with the results of the study, it can be suggested to do a pattern of varietal rotation to reduce the percentage of S. innotata pests in order to get maximum yields. Key words : Rice paddy (Oryza sativa L.) and Scirpophaga innotata.
Diversity of Insect Types on Rice (Oryza Sativa L.) Crops in Minahasa District Lengkong, Maxi; Wanta, Noni N.; Paruntu, Masye B.
Budapest International Research in Exact Sciences (BirEx) Journal Vol 6, No 2 (2024): Budapest International Research in Exact Sciences, April
Publisher : Budapest International Research and Critics University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33258/birex.v6i2.7860

Abstract

The aim of the research is to determine the types and diversity of insects on rice plants in West Kakas District, Minahasa Regency. It is hoped that this research can provide information on the presence of insects that live and are associated with lowland rice plants so that insect pest control strategies can be implemented that are right on target, on time and for their proper use. The research will be carried out based on the purposive sampling method aimed at 5 observation points carried out at 4 locations and the method of catching insects is carried out directly and using insect nets. Research results show that insects are pests and natural enemies. Pest insects consist of 5 orders, 12 families and 16 species, namely Dolycorus sp, Scotinophara sp. , Stenodema sp, Leptocorisa sp, Paraecosmetus sp, Cofana spectra, Recilia sp ., Nephotetix sp, Oxya sp. , Anacridium sp, Chilo sp, Parnara sp, Cnaphalocrocis sp . , Orseolia sp , Chlorops sp , and Phyllotretra sp. Meanwhile, natural enemies consist of 3 orders, 9 families and 9 species, namely Cyrtohinus sp . , sp, Agryophylax sp . , Sepedon sp., Encarsia sp., Menochilus sp. , Ophionea sp . , Paederus sp., Sceliphron sp. and Agriocnemis sp. The results of Shannon and Wiever's diversity analysis are H' = 2.81 or moderate diversity index , richness index R = 4.67 or medium criteria value, evenness index E = 0.52 or moderate and unstable evenness index, and dominance index C = 0.37 or low dominance.
Types Of Refugia That Effectively Preserve Parasitoid Diadegma semiclausum In Control Plutella xylostella Cabbage Pests In Tomohon City Dumalang, Sherlij; Wanta, Noni N.; Turang , Defly A. S.
Jurnal Agroekoteknologi Terapan Vol. 5 No. 1 (2024): EDISI JANUARI-JUNI 2024
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/jat.v5i1.54524

Abstract

Refugia is a plant used in plant cultivation that provides food in the form of nectar and honeydew needed by parasitoid imago so that it can survive its life and can increase its effectiveness. Parasitoids. Diadegma semiclausum is one of the parasitoids that can suppress the population of P. xylostella pests on cabbage plants to a non-detrimental extent or below the economic threshold. The purpose of this study was to determine the types of refugia that effectively preserve the parasitoid D. semiclausum around Tomohon City cabbage plants. The research method used is the survey method. Observations were carried out using self-adhesive traps, insect nets, and direct observations on plants that produce flowers vegetables, flowers, and weeds around cabbage plants in Paslaten, Rurukan, Kakaskasen I, and Wailan Villages. The data obtained were analyzed descriptively to determine the type of plant that invited the most presence of the parasitoid insect D. semiclausum as an effective refugium. Based on observations, it turns out that the effective refugia for D. semiclausum parasitoids is the Green Mustard plant. Plants that are visited by many other insects are Green Mustard plants, Legetan Weeds, Japanese Jasmine, and Carrots. Keywords: Refugia, Pest, Parasitoid, D. semiclausum, P. xylostella Abstrak Refugia merupakan tanaman yang digunakan dalam budidaya tanaman yang menyediakan makanan berupa nektar dan embun madu yang dibutuhkan oleh imago parasitoid sehingga dapat melangsungkan kehidupannya dan dapat meningkatkan efektifitasnya. Parasitoid. Diadegma semiclausum adalah salah satu parasitoid yang dapat menekan populasi hama P. xylostella pada tanaman kubis sampai batas yang tidak merugikan atau di bawah ambang ekonomi. Tujuan dari penelitian ini adalah untuk mengetahui jenis-jenis refugia yang efektif melestarikan parasitoid D. semiclausum di sekitar pertanaman kubis Kota Tomohon. Metode penelitian yang digunakan adalah metode survey. Pengamatan dilakukan dengan menggunakan perangkap berperekat, net serangga dan pengamatan secara langsung pada tanaman yang menghasilkan bunga baik sayuran, bungaan dan gulma yang ada di sekitar pertanaman kubis di Desa Paslaten, Rurukan, Kakaskasen I dan Wailan. Data yang diperoleh dianalisis secara deskriptif untuk menentukan jenis tanaman yang mengundang paling banyak kehadiran serangga parasitoid D. semiclausum sebagai refugia efektif. Berdasarkan hasil pengamatan ternyata bahwa refugia yang efektif bagi parasitoid D. semiclausum adalah tanaman Sawi Hijau. Tanaman yang banyak dikunjungi serangga lainnya adalah tanaman Sawi Hijau, Gulma Legetan, Melati Jepang dan Wortel. Kata Kunci: Refugia, Hama, Parasitoid, D. semiclausum, P. xylostella