Article Per Year (5 Year)
p-Index From 2019 - 2024
0.702
P-Index
This Author published in this journals
All Journal Jurnal Agrista Jurnal Floratek Jurnal Natural Jurnal Ilmiah Mahasiswa Pertanian
Nur Pramayudi
Faculty Of Agriculture, Syiah Kuala University
Agriculture, Biological Sciences & Forestry Astronomy Biochemistry, Genetics & Molecular Biology Chemistry Earth & Planetary Sciences Education Energy Immunology & microbiology Neuroscience Physics

Published : 5 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 5 Documents
Search

 1 
Pemangsaan Curinus coeruleus Mulsant (Coleoptera: Coccinellidae) terhadap Paracoccus marginatus Williams & Granara De Willink (Hemiptera: Pseudococcidae) Nur Pramayudi
Jurnal Agrista Vol 15, No 3 (2011): Volume 15 Nomor 3 Desember 2011
Publisher : Fakultas Pertanian, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1319.037 KB)

Abstract

ABSTRAK. Penelitian ini bertujuan untuk mempelajari pemangsaan C. coeruleus terhadap kutu putih papaya P. marginatus. Masing-masing predator dari setiap tahap perkembangan diberi mangsa pada kondisi dengan pilihan dan tanpa pilihan stadia mangsa, selama 24 jam. Pada uji tanpa pilihan, seluruh instar predator secara nyata (P0,001) lebih banyak memangsa nimfa instar I. Begitu pula pada uji pilihan bebas, nimfa kutu putih instar I lebih banyak yang dimangsa oleh setiap predator dibandingkan nimfa instar lainnya (P0,001). Tingkat pemangsaan yang lebih tinggi diperlihatkan oleh larva predator instar III dan IV. Kemampuan mangsa menurun setelah larva predator berubah menjadi imago. Pada uji pilihan bebas, tidak ada imago betina kutu putih papaya yang dimangsa predator. Hasil pengamatan tambahan mengungkapkan bahwa predator C. coeruleus dapat memangsa telur-telur yang dibungkus dalam ovisak. Dengan memilih lebih banyak mangsa yang lebih muda, predator diduga dapat menekan biaya penanganan dan metabolisme akan mangsa. Sehingga eneri yang diperoleh dari pemangsaan menjadi lebih besar. Dalam rangka pengendalian P. marginatus oleh C. coeruleus, maka predator tersebut akan efektif menekan populasi mangsa yang berumur muda. Pada kerapatan 1 ovisak per tanaman, kematian tanaman terjadi dalam waktu 30 hari setelah infestasi; sementara pada kerapatan 4 ovisak kematian tanaman terjadi dalam waktu 10 hari setelah infestasi. Keberadaan 1 ekor predator larva instar IV per tanaman tidak mampu menghentikan kerusakan dan kematian tanaman.Predation Curinus coeruleus Mulsant (Coleoptera: Coccinellidae) of Paracoccus marginatus Williams Granara de Willink (Hemiptera: Pseudococcidae)ABSTRACT. This study aimed to study predation C. coeruleus on the infestation papaya white P. marginatus. Each predators of each developmental stage were prey to the conditions with and without a choice selection of stadia prey, for 24 hours. In the test without the option, the entire instar predators significantly (P 0.001) more prey instar nymphs I. Similarly, in free choice test, I instar nymphs more white flea many were wiped out by predators than any other instar nymphs (P 0.001). Higher level of predation exhibited by predator instar larvae III and IV. The ability of predators to prey decreased after the larvae turn into imago. In free choice test, there are no female imago white lice are eaten by predators papaya. Additional observations revealed that the predator C.coeruleus may prey on the eggs are encased in ovisak. By choosing younger prey, predators could be expected to recude the cost of handling and metabolism will be prey. So that the energy gained from predation is greater. In order to control P. marginatus by C. coeruleus, the predators will be effective in suppressing the prey population aged youth. In an ovisak density per plant, plant death occurs within 30 days after infestation, while the density of 4 plants ovisak deaths occurred within 10 days after infestation. One predator (instar larval IV) is not able to stop the destruction and death of plants.
Masa Perkembangan dan Neraca Hayati Curinus Coeruleus Mulsant (Coleoptera: Coccinellidae) Yang Memangsa Paracoccus marginatus Williams and Granara De Willink (Hemiptera: Pseudococcidae) di Laboratorium Nur Pramayudi
Jurnal Agrista Vol 16, No 1 (2012): Volume 16 Nomor 1 April 2012
Publisher : Fakultas Pertanian, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (590.488 KB)

Abstract

ABSTRAK. Penelitian ini bertujuan untuk mempelajari masa perkembangan dan neraca hayati predator C. coeruleus pada P. marginatus. C. coeruleus memiliki laju reproduktif kotor (GRR) sebesar 101,934 telur per betina; laju reproduktif bersih (Ro) sebesar 93,776 telur per betina; laju intrinsik untuk peningkatan (r) sebesar 0,073 betina per betina per hari; waktu generasi rata-rata (T) selama 62,461 hari; waktu penggandaan (Dt) selama  9,534 hari; tingkat batas peningkatan (l) sebesar 1,075 per hari. Sementara itu kurva sintasan spesifik umur (lx) menunjukkan kurva sintasan tipe I. Nilai reproduktif tertinggi (Vx) dicapai oleh betina dewasa pada umur 10 hari, dan jumlah total nilai reproduktif untuk seluruh umur adalah 1335,42. Telur C. coeruleus melewati masa inkubasi selama 7 hari. Stadium larva I sampai dengan IV masing-masing berlangsung selama 6,06; 5,5; 6,11; 8,43 hari. Stadium pupa berlangsung selama 6,66 hari. Jantan dewasa dapat hidup selama 49,08 hari, sementara betina selama 76,99 hari. Selama hidupnya tersebut, betina melewati  periode pre-oviposisi selama 10,57 hari, periode oviposisi selama 30,26  hari, dan periode post-oviposisi selama 24,58 hari. Perbandingan antara jumlah jantan dan betina adalah  1 : 2,83 (jantan 24, betina 68). Pembiakan C. coeruleus di laboratorium dapat dilakukan dengan menggunakan mangsa P. marginatus sebagai mangsa alternatif. C. coeruleus pada area pertanaman pepaya, dimana P. marginatus berada, diduga dapat menetap namun tentunya perlu eksplorasi lanjut mengenai mangsa alternatif setempat.The Development Period and the Balance of Biological Curinus coeruleus Mulsant (Coleoptera: Coccinellidae) : Related to Predation on Paracoccus marginatus Williams and Granara de Willink(Hemiptera: Pseudococcidae) in the LaboratoryABSTRACT. This study aimed to study the developmental and biological balance of predator C. coeruleus in P. marginatus.C. coeruleus has a gross reproductive rate (grr) of 101.934 eggs per female; net reproductive rate (Ro) for 93.776 eggs per female; to increase the intrinsic rate (r) of 0.073 females per female per day; the average generation time (T) during 62.461 days; the doubling time (Dt) for 9.534 days; rate limit increase (l) of 1.075 per day. Meanwhile, age-specific survival curves (lx) shows the survival rate of type I. The highest reproductive value (Vx) was achieved by adult females at the age of 10 days, and the total value for the entire reproductive age is 1335.42. Incubation period of C. coeruleus eggs was 7 days. Larval stages I through IV each lasting for 6.06; 5.5; 6.11; 8.43 days. Pupa stage lasts for 6.66 days. Adult males can live for 49.08 days, while females for 76.99 days. During his lifetime, the female passes the pre-oviposition period for 10.57 days, 30.26 days during the period of oviposition, and post-oviposition period of 24.58 days long. Comparison between the number of males and females is 1: 2.83 (males 24, females 68).  Breeding C. coeruleus in the laboratory can be done using the prey P. marginatus as alternative prey. C. coeruleus in papaya planting area, where P. marginatus are, allegedly to settle but certainly needs further exploration on the local alternative prey.
BIOLOGI HAMA KUTU PUTIH PEPAYA (Paracoccus marginatus) PADA TANAMAN PEPAYA Hartati Oktarina; Nur Pramayudi
Jurnal Floratek Vol 7, No 1 (2012)
Publisher : Program Studi Agroteknologi, Fakultas Pertanian, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (410.491 KB)

Abstract

Mealybug (Paracoccus marginatus) is a new pest attacted papaya that effect quantity and quality of papaya production. The research was aimed at study of biology and development of papaya mealy bug; from an egg stadium to mature bug. The experiment was conducted at plant field experiment of Agriculture Faculty, Syiah Kuala University from May to November 2011. To understand the biology and development of mealy bug, a survey and collection of P. Marginatus were conducted for mass production in laboratory, then they were invested on healthy papaya leaf. In the future the result of this study will be used as a pest control recommendation. 
BIOLOGY OF PAPAYA MEALY BUG Paracoccus marginatus (HEMIPTERA: PSEUDOCOCCIDAE) IN CASSAVA (Manihot utilissima Pohl) Husni Husni; Nur Pramayudi; Mutia Faridah
Jurnal Natural Volume 12, Number 2, September 2012
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (444.501 KB)

Abstract

The biology of papaya mealy bug (Paracoccus marginatus) in the cassava (Manihot utilissima) had been studied at the Plant Protection Laboratory of the Agriculture Faculty of Syiah Kuala University. The purpose of this study was to investigate the biology of P. marginatus on the cassava leaves. The result showed that the insect development time on cassava leaves were: 8.0 ± 0.79 days for egg stage, 5.3 ± 0.67 days for first instar nymph, 5.5 ± 0.84 days for the second instar of female nymph, 5.3 ± 0.50 days for the second instar of male nymph, 5.4 ± 0.51 days for the third instar of female nymph, and 3.6 ± 0.52 days for the third instar of male nymph (pre pupa), respectively. The development time of IV instar of male nymp (pupa) was 56,6 ± 0,58 days. The development time of the adult stage for female and male progeny were 14 ± 1,24 days and 43,3 ± 0,58 days. The life cycle of female and male were 31,8 ± 3,83 days and 27,8 ± 1,87 days, and the average number of eggs in each ovisac was 413, respectively.
Potensi Tanaman Refugia terhadap Keanekaragaman Serangga Parasitoid pada Pertanaman Cabai Merah (Capsicum annum L.) Novi Safitri; Muhammad Sayuthi; Nur Pramayudi
Jurnal Ilmiah Mahasiswa Pertanian Vol 7, No 3 (2022): Agustus 2022
Publisher : Fakultas Pertanian, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (311.041 KB) | DOI: 10.17969/jimfp.v7i3.21182

Abstract

Abstrak. Salah satu alternatif yang dapat digunakan dalam budidaya tanaman sebagai mikrohabitat yang dapat menjadi tempat berlindung yang nyaman bagi musuh alami, menyediakan sumber pakan berupa nektar dan mendukung komponen interaksi biotik dalam suatu ekosistem, seperti polinator (serangga penyerbuk) adalah tanaman refugia. Tujuan dari penelitian ini adalah untuk mengetahui kehadiran serangga parasitoid pada pertanaman cabai merah dengan tanaman refugia. Penelitian ini menggunakan metode deskriptif kuantitatif. Tanaman yang dibudidayakan dalam penelitian ini antara lain cabai merah varietas LABA F1, tanaman refugia yaitu Tagetes erecta L., Zinnia elegans dan Cosmos caudatus. Hasil Penelitian ditemukan jumlah individu serangga pada sistem budidaya tanaman cabai merah dengan tanaman refugia adalah 3.618 individu yang tergolong dalam 8 ordo dan 29 famili. Ordo serangga dengan komposisi 41,95% merupakan komposisi tertinggi yang ditemukan berasosiasi pada pertanaman cabai merah dengan tanaman refugia yaitu Ordo Hymenoptera yang juga merupakan ordo dari serangga- serangga parasitoid yang ditemukan pada lahan penelitian.Abstract. One alternative that can be used in plant cultivation as a microhabitat that can be a comfortable shelter for natural enemies, provides a source of food in the form of nectar and support components of biotic interactions in an ecosystem, such as pollinators (pollinating insects), is the refugia plant. The purpose of this study was to determine the presence of parasitoid insects on red chili plants with refugia plants. This study uses a quantitative descriptive method. The plants cultivated in this study include red chilies of the LABA F1 variety, refugia plants, namely Tagetes erecta L., Zinnia elegans and Cosmos caudatus. The results of the study the number of individual insects in the red chili cultivation system with refugia plants was 3,618 individuals belonging to 8 orders and 29 families. The order of insects with a composition of 41.95% was the highest composition found associated with red chili plantations with refugia plants, namely the Order Hymenoptera which is also an order of parasitoid insects found in the research area. 
Co-Authors Husni Husni Mayang Sari Muhammad Sayuthi Mutia Faridah Novi Safitri Rahmansyah Izratul Bait Sapdi Sapdi