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All Journal EUGENIA PERTANIAN TROPIK COCOS
Elisabet R.M. Meray
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Agriculture, Biological Sciences & Forestry

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SERANGAN HAMA PUTIH PALSU Cnaphalocrosis medinalis GUENEE. PADA TANAMAN PADI SAWAH DI KECAMATAN RANOYAPO KABUPATEN MINAHASA SELATAN Vera E. Tangkilisan; Christina L. Salaki; Moulwy F. Dien; Elisabet R.M. Meray
COCOS Vol. 5 No. 1 (2014)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v5i1.4858

Abstract

ABSTRACTThe study aims to determine the pest Cnaphalocrosis medinalis on rice crops in the vegetative phase Ranoyapo districts, South Minahasa Regency. The study uses a survey method in 4 locations / villages in the district Ranoyapo: Ranoyapo Village, West PoopoVillage, North Poopo Village, and MopoloVillage. Each location/village rice fields specified 3 (replicates) as the observation and sampling. Sampling was conducted on each diagonal fields. In each sub-plot clumps of rice as determined 5 sampling sites. Implementation of sampling vegetative phase in rice plants once a week for 6 weeks. The results showed that C. medinalis Ranoyapo has spread in the district with the highest attack found in Ranoyapo village location reached 18.66 %, after reaching West Poopo 8.07%, North Poopo reached 4.29% and Mopolo reached 4.07 %. C. medinalis highest percentage of attacks found in plants aged 6 weeks after planting (mst) which reached 20.66 % , then 5 mst old plants reached 13.55 % , 4 mst old plants reached 10.88 % , and the plant was 3 mst reached 7.55% , while the old plants 1 and 2 mst not encountered attacks. The highest population of C. medinalis found in location for Ranoyapo village reaching an average of 12.7 tail , then the village of West Poopo 4.3 tails , North Poopo Village 3.5 tail , and the tail 3.2 Mopolo village.Key words : Cnaphalocrosis medinalis, Rice field
INVENTARISASI SERANGGA HAMA PADA TANAMAN KUBIS DI KELURAHAN KUMELEMBUAY KOTA TOMOHON Arthur Roring; Elisabet R.M. Meray; Max Ratulangi; M.F. Dien
COCOS Vol. 8 No. 4 (2017)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v1i3.15022

Abstract

ABSTRACT The study aims to determine the types of insect pests on cabbage in the village Kumelembuay. Tomohon. The experiment was conducted in an area per plant cabbage in the Village Kumelembuay, Tomohon, then continued at the Laboratory of Entomology and Plant Pests UNSRAT Faculty of Agriculture. The study lasted four months, namely since january to april 2015. The study used survey method to the location in the Village Kumelembuay cabbage, Tomohon. Sampling was conducted on cabbage planting area. Land used in this study is the land that has been planted with cabbage crops by farmers. Sampling was done by using insect nets and making direct use of the hands. Sampling was conducted using an insect net sweep with five double swing on the surface of cabbage; while the decision is directly determined each block as many as 25 plants and then take larva, nymph imago insect mupun been recorded. Insects obtained collected in the bottle collection that already contains 70% alcohol. Sampling was conducted four times: two times on young plants and twice in plants that make up the crop. Insects insect (imago) is sized caught using insect nets collected dry, while for small insects or larvae and nymphs collected in a bottle of alcohol 70%. Insects found are split according to its kind later in the collection (adult insect collection of dry, whereas insects pradewasa (larvae and nymphs collected wet). The insects had been identified to determine its type. Identification carried out in the Laboratory of Entomology and Pest Plants, Faculty of Agriculture Unsrat. Small insects found preserved and included in the collection bottle containing 70% alcohol. Large insects preserved in a dry ie included in the collection box and then insects labeled. Insect identification is done using a microscope and identification be to a degree relatives by using insect identification keys. Identification conducted at the Laboratory of Entomology and Plant Pests Faculty of Agriculture of UNSRAT. The data obtained were then analyzed using descriptive and do tabulation and calculated the average population of insect pests on cabbage. 4 The results showed that the thirteen species of insects found on cabbage plants in the village Kumelembuay, four of which are pests on cabbage. The identification results show that different types of insect pests that attack cabbage plants in the village Kumelembuay are: (1) Family Pyralidae Order Lepidoptera alleged Crocidolomia pavonana (2) Family Plutellidae Order Lepidoptera suspected as Plutella xylostella (3) Family Noctuidae Order Lepidoptera that Chrysodeixix chalcites alleged funding of the Order Homoptera Aphididae Family alleged Aphis sp. The average population of insect pests on famli Pyralidae dijumpaia highest reached 65.93 tails, then tails Family Aphididae 61.56, 30.18 Plutellidae tail and tail Family Noctuidae 0.75. Besides insect pests also found other types of insects insect berifat well as natural enemies as well as newcomers. Types of predatory insects found are Coccinelidae Family, Family Labillulidae, Amili Sphecidae, Family asilidae. Family Ichneumonidae parasitoid insects are and Tachinididae, while insect migrants are Scarabidae Family and Family Erebidae. Key word : Cabbage, insect pest
Co-Authors Ameilia Zuliyanti Siregar Arthur Roring Berty H. Assa, Berty H. Betsy A.N. Pinaria Caroulus S. Rante Ch. L. Salaki, Ch. L. Christina Salaki Daisy S. Kandowangko Dantje T. Sembel Greyni P. Palit, Greyni P. Jusuf . Manueke Kila, Alex Hendra M.F. Dien Max M. Ratulangi Max Ratulangi Moulwy F. Dien Ni Made Riska Dewi Rany Badjo, Rany Susanti Mangansige Vera E. Tangkilisan Wilson Moniaga