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Robert W. Tairas
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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
MONITORING HAMA KUMBANG BADAK (Oryctes rhinoceros L.) PADA TANAMAN KELAPA (Cocos nucifera L.) MENGGUNAKAN FEROMON DI KECAMATAN MAPANGET KOTA MANADO Tegar P. Prok; Robert W. Tairas; James B. Kaligis; Edy F. Lengkong
COCOS Vol. 11 No. 3 (2019): EDISI JULI-SEPTEMBER 2019
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v3i3.28720

Abstract

ABSTRACT This research aims to determine the population of O. rhinoceros with pheromones and trap devices. This research was carried out in the paniki experimental garden in Mapanget Subdistrict, Manado city, from October to December 2019. This research used a survey method which was carried out directly on coconut plants. Determination of the location of the imago O. rhinoceros sample collection was done by purposive sampling, ie taking the imago O. rhinoceros sample trapped in the pheromone trap. This study uses pheromones (ethyl 4methyloctanoate), for traps made from buckets and installed 4 sides of zinc plates at the top of the bucket, zinc plates made holes to hang pheromones, then at the bottom of the bucket is perforated. This is so that when there is rain, water will not flood the bucket. Traps used consist of traps that are yellow and colorless, traps are then placed on a coconut plantation with a distance between traps 100-150 meters and placed diagonally. Observations are made once a week for 2 months, beetles caught during observation are counted. The results showed that 83 yellow-painted traps could be trapped and unpainted traps could trap 78 individuals. Keywords: O. rhinoceros, pheromones, Coconut
SERANGGA-SERANGGA YANG BERASOSIASI PADA TANAMAN TOMAT (Lycopersicum esculentum Mill.) DI KELURAHAN KAMASI KOTA TOMOHON Brigita H. Pondaag; Robert W. Tairas; Daisy Kandowangko
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.v7i7.35975

Abstract

ABSTRACTInsects associated with tomato plants are both pests and beneficial insects such as predators,parasitoids, and some are useful as flower pollinators and destroyers of organic matter. The level ofstability of an agricultural ecosystem is determined by the structure of the trophic network and theinteractions between community components including herbivores (pests), carnivores, namelypredators and parasites. This study aims to inventory the insects associated with tomato plants inKamasi Village, Tomohon City. This research was conducted using two traps, namely the Pitfall Trap,the Yellow Sticky Trap which was installed every three days in one month of observation, and directcapture using the Insect Net. Pitfall traps are placed at 10 different points (using the zig-zag method)in 1 planting area. While the Yellow sticky trap is placed at 3 points of the planting area, namely theleft, right and center, the insects caught are labeled. Then it was taken to the laboratory of theDepartment of Pests and Plant Diseases, University of Sam Ratulangi Manado to be observed. Theresults of the study found that the insects associated with tomato plants in Kamasi Village, TomohonCity for Insect Nets were found to have a total of 13 types of insects, namely the Order Orthoptera,Family Acrididae, Order Coleoptera, Family Scarabaeidae, Staphylinidae, Chrysomelidae,Coccinellidae and Chantaridae, Order Diptera, Family Syrphidae. , Dolichopodidae and Asilidae,Order Hymenoptera Family Halictidae, Order Hemiptera Families Alydidae and Miridae, OrderLepidoptera Family Noctuidae. The Pitfall Trap was found to have 12 types of insects, namely theOrder Orthoptera, Family Gryllidae, Order Coleoptera, Family Scarabaeidae, Staphylinidae,Scolytidae and Ptinidae, Order Dermaptera, Family Forficulidae, Order Diptera, Family Drosophilidae,Order Hymenoptera, Family Formicidae, Order Hemiptera, Familiaridae, Colillomidae. Isotomidae andSminthuridae. The Yellow Sticky Trap was found to have 1 type of insect, namely the Order Diptera,Family Tephritidae. From the results of the study, it can be concluded that the insects associated withthe Tomato plant are 8 Orders, 24 Families consisting of insect pests, 11 Families from 5 Orders,insects as natural enemies (predators) 9 Families from 4 Orders, pollinator insects 1 Family from 1Order and decomposer insects of 3 Families of 1 Order.Keyword : insect, Association, tomatoes, garden