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Daisy Kandowangko
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POPULASI HAMA Spodoptera exempta PADA TANAMAN PADI SAWAH DI DESA MOLOMPAR DUA UTARA KABUPATEN MINAHASA TENGGARA Tompunu, Vinolia P.; Moningka, Mareyke; Maramis, Redsway; Kandowangko, Daisy
COCOS Vol 5, No 1 (2014)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v5i1.5349

Abstract

ABSTRACKRice is the main commodity for the Indonesian people, because rice is an important food crop in which half of Indonesia's population depend on rice, even half of the world's population makes rice as the staple food. This study aims to determine the population of S. exempta pests in rice paddy fields in the village of Two Molompar Northern District of East Tombatu Southeast Minahasa regency. The research was conducted at the location of paddy rice cultivation In October-December 2013 This study used a survey method with sampling deliberately by choosing plant pests. Materials and tools used in this research is cropping Rice, meter, Aqua Glass, Peg, paper labels, plastic rope, Scissors, Box collection, Microscope, Petridis, Calculators, digital camera for documentation and stationery. The observation of the larval population of S. exempta in rice paddy fields in the village molompar two north, found that populations of this pest on plant age 60 HST is 3.3 tails. Then the next observation at the age of 67 plants as much as 2.1 HST observations of the tails and the third at the age of 75 plants of S. exempta HST population is 2 larvae.
PENGENDALIAN HAMA WALANG SANGIT (Leptocorisa acuta Thunb.) DENGAN MENGGUNAKAN PERANGKAP BANGKAI IKAN DAN KEONG PADA TANAMAN PADI Buida, Ruth Kristivoni; Kandowangko, Daisy; Montong, Vivi B.
COCOS Vol 7, No 7 (2021)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v7i7.36419

Abstract

BSTRACT Walang sangit is an important pest in rice plants. Because of the attack of walang sangit on rice crops in the flowering phase, farmers suffer losses because the grain of rice does not produce. The attack of pests that are high enough to cause rice crops to fail to harvest or reduce the quality of grain and the quantity of production. To prevent the attack of walang sangit on rice plants, it is necessary to control environmentally friendly walang sangit pests to suppress the impact of pesticide use by finding alternative substitutes, namely with carcass smell extracts, in this case using fish and conch carcasses. The purpose of this study is to find out the extent to which fish and conch carcasse traps can be used for pest control in rice plants located in Kiniar Village of Tondano Subdistrict during Minahasa Regency and implementation time from March to July 2021. This study used 2 treatments, namely fish carcass traps and conch carcasses, each treatment using a carcass mass weighing 150 grams, with 10 repeats. The results showed that both of these treatments can give good results where the pest walang sangit is attracted to both traps although in the treatment of fish carcass traps are able to attract more pests walang sangit with a value of 64.9 tails, and in the trap of conch carcass 38.7 tails. The results of the test analysis of the average difference between two free samples proved that the value of thitung > ttabel, which is 4.38 > 2,101, thus the hypothesis is proved to be H0 in rejected and H1 to be accepted. Keyword : Walang Sangit, carcass smelling accretion, fish and conch carcass traps
SERANGGA-SERANGGA YANG BERASOSIASI PADA TANAMAN TOMAT (Lycopersicum esculentum Mill.) DI KELURAHAN KAMASI KOTA TOMOHON Pondaag, Brigita H.; Tairas, Robert W.; Kandowangko, Daisy
COCOS Vol 7, No 7 (2021)
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
PERSENTASE SERANGAN HAMA Brontispa longissima (Gestro) PADA TANAMAN KELAPA (Cocos nucifera L.) VARIETAS GENJAH RAJA DAN VARIETAS DALAM BIDO DI BALAI PENELITIAN TANAMAN PALMA MAPANGET Salasa, Tirsa; Rante, Caroulus S.; Kandowangko, Daisy
COCOS Vol 8, No 8 (2021)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v8i8.36968

Abstract

ABSTRACTThis study aims to determine the percentage of pest attack Brontispa longissima (Gestro) oncoconut (Cocos nucifera L.) varieties Genjah Raja and varieties Dalam Bido. The results of the studyare expected to provide information or knowledge to the public regarding the percentage of pestsAttacks B. longissima on coconut so that B. longissima pests can be controlled. The research wascarried out in the coconut plantation area of the Palma Research Institute (Balit Palma) MapangetDistrict, North Minahasa Regency. The research took place from March to July 2021. The researchwas conducted in the form of a survey or by direct observation at the research site. The study wasconducted at the Experimental Garden of Mapanget on coconuts of Genjah Raja and Dalam Bidovarieties with a land area of ± 0,2 hectares for each variety, then divided into five sub-plots ofobservations spread diagonally. The things that were observed in this study included the symptoms ofthe attack, the plants that were attacked, the fronds that were attacked and the category of attack.The results showed that the percentage of B. longissima pest attack on coconuts in the Dalam Bidovariety was 20% and the Genjah Raja variety was 12.5%. The percentage of midrib that was attackedby B. longissima in the Dalam Bido variety was 17.99% and the Genjah Raja variety was 10.91%.Keyword : Percentage, B. longissima, Coconut