Article Per Year (5 Year)
p-Index From 2020 - 2025
0.408
P-Index
This Author published in this journals
All Journal COCOS
Elisabeth R.M. Meray
Unknown Affiliation
Agriculture, Biological Sciences & Forestry

Published : 4 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 4 Documents
Search

 1 
Karakter Morfologi Necrobia spp. (Coleoptera ; Cleridae) Pada Beberapa Jenis Bahan Simpanan Ni Made Riska Dewi; Jusuf . Manueke; Caroulus S. Rante; Elisabeth R.M. Meray
COCOS Vol. 2 No. 3 (2013)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v2i3.1482

Abstract

ABSTRACTThe morphological and behavioral characters indicate the identity of the type or species of insects and closely related to the selection and determination of the type of insect food. This study aimed to see differences in morphological characters Necrobia spp. on some kinds of deposits. It is hoped this research can provide information on morphological characters Necrobia spp. on some kinds of deposits. This study uses survey methods, and sampling was done by "purposive sampling" is intentionally sampling by selecting and determining the sampling site. The results showed that the morphological Necrobia spp. imago on copra, dried shrimp and fish rowa there is a difference. Morphological differences Necrobia spp. imago views of body size, body color, male and female differences. Dense population Necrobia spp. imago the highest in the kopra 33.25 individu/500gr, dried shrimp followed the 31.5 individu/500 gr, then the fish rowa 27.25 individu/500gr while the peanuts are not found Necrobia spp.
SERANGAN HAMA ULAT KROP (Crocidolomia pavonana F.) PADA TANAMAN KUBIS (Brassica oleracea var. capitata L.) DI KELURAHAN KAKASKASEN II, KECAMATAN TOMOHON UTARA, KOTA TOMOHON Rany Badjo; Caroulus S. Rante; Elisabeth R.M. Meray; Berty H. Assa
COCOS Vol. 6 No. 14 (2015)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v6i14.8755

Abstract

ABSTRACT The study aimed to find out the attacks of caterpillar pests on cabbage crop in the Village of Kakaskasen II, District of North Tomohon, Tomohon.  Research has been conducted on cabbage in the Village of Kakaskasen II, Tomohon.  The study lasted four months, which began in March 2015 until July 2015. The study was conducted by surveys using sampling methods of purporsive sampling.  Cabbage plants showing symptoms were observed.   Cabbage plants with symptoms counted as attacked by caterpillars, although no larvae found.  Data were observed in this study were (i) symptoms of attacks by caterpillar pest on the crop, (ii) the number of part of the plant showing symptoms and no symptoms, (iii) cabbage crop weight.  Parts of plants that were observed for the caterpillar attack were the leaf, the crop, the crop and leave, and the growing point.  The results showed that the percentage of attacks of caterpillar crop of C.  pavonana in Village of Kakaskasen II reached 48.83 percent.  The crop part showed the highest pecent of attack, which was 16.84 percent, followed by the crop and leave parts of 15.24 percent, and then the growing point parts by 13.61 percent, and the lowest was 3.14 percent was found on the leaf part.  The average weight of cabbage crop are attacked by pests caterpillar crop, C. pavonana lower (1.44 kg) compared to cabbage crop is not affected (3.34 kg ). Keywords: Crocidolomia pavonana, Brassica oleracea var. capitata  L., Tomohon.
POPULASI DAN INTENSITAS SERANGAN LARVA Spodoptera litura PADA TANAMAN KACANG TANAH Arachis hypogeae L. DI DESA KANONANG KECAMATAN KAWANGKOAN BARAT Greyni P. Palit; Betsy A.N. Pinaria; Elisabeth R.M. Meray
COCOS Vol. 7 No. 2 (2016)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v7i2.12100

Abstract

ABSTRACTThe purpose of this research is to know the population and intensity attack of larvaS. litura to peanuts at Kanonang Kawangkoan Barat. Decided the research location, there aretwo planting locations of peanuts on 25x15 m2 wide. Then, every garden bed decided to fivesub plot monitoring that spread diagonally on size 3x3m.The result showed that the population of larva S. litura on peanuts at Kanonangvillage Kawangkoan Barat the highest was on 49 days old after planting at location A thatreached out 2,2 by clump and reached out 4,8 by clump of location B and the highestintensity attack was on 49 days old of plant at location A that reached out 17,61% and19,52% at location B.The more the plant had been growing old that more the population and intensityattack of a pest had been increasing, because the necessity of pest would be more increasing .Key words : Population, Attack Intensity, S. litura, Peanut
PENGENDALIAN HAMA PENGGEREK BATANG CENGKIH (Hexamitodera semivelutina Hell.) MENGGUNAKAN INSEKTISIDA FIPRONIL DAN EMAMEKTIN BENZOAT DENGAN METODE INJEKSI LUBANG PADA BATANG Trisakti M. C. Manengkey; Elisabeth R.M. Meray; Caroulus S. Rante
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.v7i7.36421

Abstract

ABSTRACT This study aims to determine the effectiveness of the use of insecticides fipronil and emamectin benzoate by injection of stem holes in clove plants againstlarvae H. semivelutina. The results are expected to provide benefits for farmers in controllingpests H. semivelutina with fipronil and emamectin benzoate insecticides on clove plants by injection of holes in the stems. The research was conducted in a clove plantation area owned by farmers in Talaitad Village, Suluun Tareran District, South Minahasa Regency, North Sulawesi Province. The study lasted for 3 (three) months, from April to June 2021. This study used the Completely Randomized Design (CRD) method on clove plants belonging to farmers. Determination of plants to be applied to injection holes in the stem is done by looking at plants that are attacked bypests H. semivelutina by looking at the hoist holes that secrete liquid mixed with dirt on the clove plant. The results showed that the percentage of the effectiveness of the insecticide fipronil was 56%, which was not significantly different from that of emamectin benzoate, which was 40%, but was significantly different from the control by 0%. This study concluded that the use of fipronil and emamectin benzoate insecticides in the clove plantation area in Talaitad Village, South Minahasa Regency had a high enough killing power in controlling the clove stem borer H. semivelutina. The effectiveness of the application of Fipronil insecticide is 56% and Emamectin benzoate insecticide is 40% and as for suggestions in this study the use of Fipronil and Emamectin Benzoate insecticides is one way to control the pest population of H. semivelutina, besides that there are also various control methods that can be combined by using insecticides. However, its use must also be in accordance with the recommendations so as to reduce the occurrence of pollution and negative impacts on plants and the environment. Keywords : Effectiveness, Emamectin Benzoate, Fipronil, H. semivelutina.
Co-Authors Berty H. Assa Betsy A.N. Pinaria Caroulus S. Rante Greyni P. Palit Jusuf . Manueke Ni Made Riska Dewi Rany Badjo Trisakti M. C. Manengkey