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All Journal JURNAL ADMINISTRASI PUBLIK EUGENIA JURNAL ILMIAH SOCIETY JURNAL LPPM BIDANG SAINS DAN TEKNOLOGI Silvarum COCOS
Max Tulung
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Agriculture, Biological Sciences & Forestry Education Environmental Science Social Sciences

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INSIDENSI PENYAKIT LAYU FUSARIUM PADA TANAMAN TOMAT (Lycopersicum esculentum Mill) DI KECAMATAN LANGOWAN BARAT Muhammad Fadly Syam; Max M. Ratulangi; Guntur S.J. Manengkey; Max Tulung
COCOS Vol. 5 No. 1 (2014)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v5i1.5348

Abstract

ABSTRACKTomato (Lycopersicum esculentum Mill) is no stranger to the community as a tomato vegetable crops play an important role in the nutrition community. This study aims to determine the cause of Fusarium wilt disease and the incidence of disease. This study was conducted in farmers' fields in the village of Tumaratas, Raringis, and Kopiwangker from February to April 2014 This study used a survey method or field observation purposive sampling. Materials and tools used in this study is the tomato crop land, plants Fusarium wilt disease, PDA, CLA media, antibiotics, distilled water, 95% alcohol, petridish, parafilm, test tube, needles ose, spirit lamp, analytical scales, tweezers, cutter, masking tape, autoclave, laminar air flow, rack culture, cover glass, glass objects, microscope, digital cameras, and stationery. The results showed the fungus that causes Fusarium wilt disease infecting tomato plants in the District of West Langowan is Fusarium sp. The incidence of Fusarium wilt disease on tomato plants in the District of West Langowan is Tumaratas village average of 6.16%, the village Raringis average of 8.66%, and the average village Kopiwangker 9.61%. The highest incidence of the disease an average of 13.66% while the lowest incidence of tomato plants with an average of 4.33%.Keywords : Tomato plant, Fusarium 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
Serangan Hama Penggerek Cabang Mangga (Rhytidodera sp.) (Coleoptera: Cerambycidae) di Kelurahan Manembo-Nembo Kota Bitung Mieke Walalangi; Max Tulung; James B. Kaligis; Caroulus S. Rante
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

Abstract

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.
PATOGENISITAS JAMUR ENTOMOPATOGEN Metarhizium anisopliae Metch. TERHADAP KEPINDING TANAH Scotinophara coarctata, Fabricius PADA TANAMAN PADI SAWAH Marselina A. M. Tular; Max Tulung; James B. Kaligis
COCOS Vol. 14 No. 2 (2022): EDISI APRIL-JUNI 2022
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v7i7.36169

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. S. coarctata is one of the important pests that attack at all stages of rice plant growth, and is capable of causing losses. One alternative that can be done is by using entomopathogens that are able to control pest attacks, one of which is M. anisopliae. This study was conducted with the aim of knowing the ability of the entomopathogen M. anisopliae to infect S. coarctata. The study was conducted using a completely randomized design (CRD) with 4 treatments and 4 replications, conducted control experiments using density concentration: P1 = 10 6 konidium / ml; P2 = 10 7 conidium/ml; P3 = 10 8 conidium/ml; P0 (control) = Water. Based on the results of observations after application at 2 – 3 DAS, it began to show mycelium growth on the surface of the insect's body which gradually began to change color to olive green. The mortality percentage of S. coarctata against M. anisopliae at a density of 10 8 caused 91%, followed by 10 7 causing 81%; and 10 6 caused 71% mortality at 14 HAS. The results of probit analysis showed that the value of LT50 at a density of 10 6 reached 9 days; 10 7 to 7.7 days; and 10 8 to 7.4 days. Based on the results of the study the percentage mortality is highest indensity of 10 8 konidium/ ml is equal to 91% mortality at 14 DAA. For the value of LT50, namely the death of 50% of the fastest insects found at a density of 10 8 only takes 7.4 days and LC50, which is at a concentration with a density of 10 7.5 conidium/ml. In accordance with the results of the research that has been carried out, it can be suggested that in controllingpests S. coarctata in lowland rice, it is better to use the entomopathogen M. anisopliae and to be applied by farmers, it is necessary to propagate it in the laboratory and then propagated in media ready for use by farmers. Keywords: Rice (Oryza sativa L.), Scotinophara. coarctata, and Metarhizium anisopliae.
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.
Co-Authors Bastian P. Wowiling Bastian P. Wowiling, Bastian P. Caroulus S. Rante Christina Salaki Frangky J. Paat Guntur S.J. Manengkey Hard N. Pollo, Hard N. Henny Makal Henny Makal, Henny Hetsi A. Kaurow, Hetsi A. J. M.E. Mamahit, J. M.E. James B. Kaligis Jantje Pelealu Juliet M.E. Mamahit Jusuf Manueke Kaligis, Kevin H. Kaligis, Kevin Hiskia Lucia Cecilia Mandey Marselina A. M. Tular Max M. Ratulangi Mieke Walalangi Mieke Walalangi, Mieke MOTULO, BRENDA Muhammad Fadly Syam Nasution Suharto Anes Noni N. Wanta Oddi R Pinontoan Orpa Frasawi Pinaria, Betsy A. N. Robert W. Tairas, Robert W. Ventje V Rantung Virginia V. Manoppo Wowiling, Marlein Anita