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All Journal EUGENIA JURNAL LPPM BIDANG SAINS DAN TEKNOLOGI Seminar Nasional Lahan Suboptimal COCOS
Jusuf Manueke
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Agriculture, Biological Sciences & Forestry Education Other

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PENGGUNAAN EKSTRAK TANAMAN BUAH LANTA (Excoecaria agallocha L.) DALAM PENGENDALIAN HAMA PENGGEREK BATANG (Hexamitodera semivelutina Hell.) PADA TANAMAN CENGKEH (Syzygium aromaticum L.) DI DESA RERER KECAMATAN KOMBI KABUPATEN MINAHASA Trivandi Efraim Rambi; Jusuf Manueke; Jackson F. Watung; Sandra E. Pakasi
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.v3i3.28692

Abstract

ABSTRACT Clove (Syzygium aromaticum L.) in English called cloves, is a scented dried flower stalk from the Myrtaceae family. Clove is a native plant of Indonesia, widely used as a main ingredient in Indonesian clove cigarettes. Pests are one of the inhibiting factors in efforts to increase Clove productivity. This study aims to determine the effect of extracts of lanta (Excoecaria agallocha L.) against larvae attack (Hexamitodera semivelutina) on clove plants (Syzygium aromaticum L.) and determine the concentration of lanta fruit extract which is the best in controlling H. semivelutina larvae attacks on clove plants In Rerer Village, Kombi District, Minahasa Regency. The study was conducted in October to December 2019. The study uses a purposive sampling method (Purposive Sampling Method), which is to choose or determine the location and object of research directly. The study consisted of 5 treatments and 4 replications. Each treatment consisted of 5 sample clove trees that had one active H. semivelutina larvae, so the number of sample trees needed was = 100 trees. materials and equipment include lanta fruit, blenders, filters, plastic containers, injection tools, knives / cutters and mobile / camera clay. The results showed that the highest percentage of H. semivelutina larvae hole due to the use of lanta fruit extract was found in treatment D (concentrated extract 20%) that is 100%, then followed by treatment C (concentrated extract 15%) that is 75%, treatment B (concentrated extracts) 10%) is 55% and the lowest is in treatment A (5% concentrated extract), which is 35%. Keywords: E. agallocha, H. semivelutina, Clove
SERANGGA-SERANGGA HAMA PADA TANAMAN CABAI RAWIT (Capsicum frutescens L.) DI DESA DUNU KECAMATAN MONANO KABUPATEN GORONTALO UTARA PROVINSI GORONTALO Fransisca Indriani Tahir; Jusuf Manueke; Redsway Truman Douglas Maramis
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.v8i8.37235

Abstract

ABSTRACT This study aims to determine insect pests on cayenne pepper (Capsicum frutescent L.) in Dunu Village, Monano District, North Gorontalo Regency, Gorontalo Province. This research was carried out for three months, from April to June 2021. The research method used was descriptive exploratory with 2 stages, namely sampling in the field and observations in the laboratory which were then presented in descriptive form in the form of tables, pictures, and graphs. Samples were obtained by catching using light traps and nets carried out for 6 consecutive days on 500 m2 area of cayenne pepper which was used as an experimental or observation area. The area consists of 1 light trap which is placed in the cayenne pepper plant and the lights are turned on every day from 18:00-06:00 WITA, then nets are used at 06:00-07:00 WITA and 16:00-18:00 WITA with the help of hands. Insects caught were taken and then observed the type and number of insects. Based on the results of research conducted, it showed that 8 types of insect pests were found, namely Nezara sp., Faneroptera sp., Gryllus sp., Acrida sp., Valanga sp., Bactocera sp., Circulifer sp., which belong to 4 orders and 6 families. The number of individuals found was 454 individuals, the highest was in the genus Nezara sp. namely 138 individuals and the lowest in the genus Gryllus sp. namely 11 individuals. Keyword : Insect, Pests, Cayenne pepper
Co-Authors Alfiando A. Sasauw Andrea Wangko Berty H. Assa, Berty H. Berty. H. Assa Betsy A.N. Pinaria Caroulus S. Rante Chendy Livinia Sambow Christman F. Lepa Dantje Tarore Elisabeth R. M. Meray Frangky J. Paat Fransisca Indriani Tahir Grace Lolyta Simanjuntak Guntur S.J. Manengkey Irma Tombuku J. M.E. Mamahit, J. M.E. Jackson F. Watung James B. Kaligis Jantje Pelealu Joice L.A. Kawulusan Juliet M.E. Mamahit Juliet M.E. Mamahit Kawulusan, Joice L.A. Mareyke Moningka Margono . Max Tulung Montong, Vivi B. Moulwy F. Dien Moulwy Frits Dien Nintang T. Umboh Oddi R Pinontoan Paut Gwijangge Pelealu, Aldegonga E. Redsway Maramis Redsway Truman Douglas Maramis Sandra E. Pakasi Trivandi Efraim Rambi