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All Journal Jurnal Agroqua: Media Informasi Agronomi dan Budidaya Perairan Jurnal Entomologi Indonesia Jurnal Agrium
Heviyanti, Maria
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences

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Pengaruh Intensitas Serangan Hama Penggerek Buah Kakao (Conopomorpha cramerella Snell) Terhadap Kehilangan Hasil Kakao Di Kecamatan Pantee Bidari Yudiansyah, Ibnu; Mulyani, Cut; Heviyanti, Maria
Agrium Vol 18, No 1 (2021)
Publisher : Faculty of Agriculture, Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/agrium.v18i1.3835

Abstract

Tujuan penelitian ini untuk mengetahui pengaruh intensitas serangan hama  penggerek buah kakao terhadap kehilangan hasil  kakao di Kecamatan Pantee Bidari. Penelitian ini menggunakan metode survei, penentuan sampel dilakukan secara “Purposive” yang dilaksanakan di tiga desa yaitu Desa Buket Bata, Seuneubok Tuha dan Pante Rambong mulai dari bulan Desember 2019 sampai bulan Januari 2020. Pada masing-masing kriteria kebun yang diamati, persentase dan intensitas serangan hama penggerek buah kakao menunjukan tingkatan yang berbeda, hal ini disebabkan oleh rendahnya kelembaban kebun yang memicu tingginya aktivitas hama PBK. Rerata persentase serangan dan intensitas serangan hama penggerek buah kakao tertinggi yaitu pada kebun yang tidak dirawat dengan nilai masing-masing 72,8% dan 61,7,% yang terendah yaitu pada kebun yang mempraktikkan pengendalian hama terpadu dengan nilai masing-masing 25% dan 5,2%. Rerata intensitas serangan pada seluruh kebun yang diamati yaitu 29%. Sedangkan kehilangan hasil akibat meningkatnya intensitas serangan hama penggerek buah kakao mencapai 333,5 Kg/ha/Tahun atau 50,02%. Kata Kunci; Kakao, Penggerek Buah Kakao, Pengendalian Hama Terpadu
Aktivitas insektisida ekstrak Piper aduncum dan Aglaia odorata terhadap Plutella xylostella (Linnaeus) (Lepidoptera: Plutellidae): Insecticidal activity of Piper aduncum and Aglaia odorata extracts on Plutella xylostella (Linnaeus) (Lepidoptera: Plutellidae) heviyanti, Maria; Dadang; Sartiami, Dewi; Kusumah, Yayi Munara; Purwantiningsih
Jurnal Entomologi Indonesia Vol 22 No 1 (2025): March
Publisher : Perhimpunan Entomologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5994/jei.22.1.52

Abstract

One of the main problems in the cultivation of Brassicaceae vegetable plants is the attack of diamondback moth Plutella xylostella (Linnaeus). Extracts of Piper aduncum and Aglaia odorata have the potential to be used as botanical insecticides because they contain compounds that are toxic to insects. This study aims to evaluate the toxicity and feeding inhibition activity of hexane-extract of P. aduncum fruits and methanol-extract of A. odorata twigs against second instar larvae of diamondback moth. Extraction was carried out using the maceration method with a powder-to-solvent ratio of 1:10 (w/v). The diamondback moth insects used were from colonies reared in the laboratory. The lethal effect test was conducted using the leaf-dip method with test concentrations equivalent to LC15, LC35, LC55, LC75, LC95, and a control. The feeding inhibition test was conducted using the choice-test method with test concentrations equivalent to LC15, LC35, LC55, and a control. The results show that the hexane-extract of P. aduncum fruit is more toxic to second instar P. xylostella larvae than the methanol-extract of A. odorata twigs based on the probit analysis value of the relationship between concentration and mortality. The LC50 and LC95 values of P. aduncum extract were 0.07% and 0.14%, respectively, while the LC50 and LC95 values of A. odorata extract were 1.63% and 4.72%. Additionally, P. aduncum and A. odorata extracts also exhibited feeding against diamondback moth at concentrations of 0.07% and 1.77%, respectively. The combined effects of direct toxicity and feeding inhibition contributed to the mortality of the test insects. Thus, these two extracts, escpecially P. aduncum extract wich demonstrated higher effectiveness, have a great potential as botanical insecticides for controlling diamondback moth in Indonesia.
Pengaruh Intensitas Serangan Hama Penggerek Buah Kakao (Conopomorpha cramerella Snell) Terhadap Kehilangan Hasil Kakao Di Kecamatan Pantee Bidari Yudiansyah, Ibnu; Mulyani, Cut; Heviyanti, Maria
Agrium Vol 18 No 1 (2021)
Publisher : Faculty of Agriculture, Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/agrium.v18i1.3835

Abstract

Tujuan penelitian ini untuk mengetahui pengaruh intensitas serangan hama  penggerek buah kakao terhadap kehilangan hasil  kakao di Kecamatan Pantee Bidari. Penelitian ini menggunakan metode survei, penentuan sampel dilakukan secara Purposive yang dilaksanakan di tiga desa yaitu Desa Buket Bata, Seuneubok Tuha dan Pante Rambong mulai dari bulan Desember 2019 sampai bulan Januari 2020. Pada masing-masing kriteria kebun yang diamati, persentase dan intensitas serangan hama penggerek buah kakao menunjukan tingkatan yang berbeda, hal ini disebabkan oleh rendahnya kelembaban kebun yang memicu tingginya aktivitas hama PBK. Rerata persentase serangan dan intensitas serangan hama penggerek buah kakao tertinggi yaitu pada kebun yang tidak dirawat dengan nilai masing-masing 72,8% dan 61,7,% yang terendah yaitu pada kebun yang mempraktikkan pengendalian hama terpadu dengan nilai masing-masing 25% dan 5,2%. Rerata intensitas serangan pada seluruh kebun yang diamati yaitu 29%. Sedangkan kehilangan hasil akibat meningkatnya intensitas serangan hama penggerek buah kakao mencapai 333,5 Kg/ha/Tahun atau 50,02%. Kata Kunci; Kakao, Penggerek Buah Kakao, Pengendalian Hama Terpadu
EFEKTIFITAS EKSTRAK METANOL DAUN KARI (Murraya koeginii) DAN CABAI JAWA (Piper retrofractum) TERHADAP LARVA Crocidolomia pavonana zell Maulina, Faza; Bahri, Syamsul; Heviyanti, Maria
Jurnal Agroqua: Media Informasi Agronomi dan Budidaya Perairan Vol 21 No 2 (2023): Jurnal Agroqua
Publisher : University of Prof. Dr. Hazairin, SH

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32663/ja.v21i2.3457

Abstract

The use of chemical pesticides at the level of vegetable farmers is indicated in excessive amounts, while this is very dangerous for both the environment and humans. Chemical pesticides can pollute the environment because they are toxic and overused. Curry leaves (Murrayakoeginii) and Javanese chili (Piper retrofractum) can kill larvae, are safe for animals, and safe for the environment. Objective: To determine the effectiveness of methanol extract of curry leaves (Murraya koeginii) and Javanese chili (Piper retrofractum) against Crocidolomia pavonana Zell larvae. Research method: using a completely randomized design (CRD) with a factorial pattern consisting of two factors, namely the extraction material factor (I) consisting of 2 levels, namely I1 = Javanese Chilli Extract, I2 = Curry Leaf Extract. Furthermore, the extract concentration factor (K) which consists of five levels. The concentration of the extract was determined based on the results of preliminary testing of the test larvae which could cause 15% and 50% mortality of the larvae. Thus, 10 treatment combinations were obtained, each treatment was repeated 3 times, so there were 30 experimental units. In each petri dish, 10 C. pavonana larvae will be introduced, so that the total number of petri dishes is 30 plates along with 300 C.pavonana imago and all of them are observed. Results: Statistical analysis found that to control C. pavonana larvae, Java chili (Piper retrofractum) extract (I1) with a concentration of 0.35% (K1) could be used.
Co-Authors Dadang DEWI SARTIAMI Kusumah, Yayi Munara Maulina, Faza Mulyani, Cut Purwantiningsih Syamsul Bahri Yudiansyah, Ibnu