Garuda - Garba Rujukan Digital

Article Per Year (5 Year)

p-Index From 2021 - 2026

0.23

P-Index

This Author published in this journals

All Journal AGROEKOTEKNOLOGI Jurnal Agrotek Tropika

Maryani Cyccu Tobing

Universitas Sumatera Utara

Author-ID : 3055622

Agriculture, Biological Sciences & Forestry

Published : 17 Documents Claim Missing Document

Claim Missing Document

Articles

1 2

Pengaruh Lamanya Inokulasi Parasitoid Sturmiopsis inferens Town (Diptera: Tachinidae) terhadap Jumlah Inang Phragmatocia castaneae Hubner (Lepidoptera: Cossidae) di Laboratorium The Influence of Inoculation Periode Parasitoid Sturmiopsis inferens Town (Di Tetra Febryandi Sagala; Maryani Cyccu Tobing; Lisnawita Lisnawita
Jurnal Agroekoteknologi Vol 3, No 1 (2015)
Publisher : Universitas Sumatera Utara

The objectives of the research was to study the capability of S. inferens (Diptera: Tachinidae) afterinoculated on larvae P. castaneae Hubner (Lepidoptera: Cossidae) with different types of theinoculation period and larvae numbers. The research was conducted in Laboratory of SugarcaneResearch and Development Sei Semayang, Binjai, Medan, North Sumatera from November 2013until January 2014. The method used Randomized Complete Design with two factors and threereplications, the first factor was larvae number (30, 40, 50 larvae P. castaneae) and the secondfactor was inoculation period (25, 35, 45 minutes). The results showed that inoculation period,larvae numbers and interaction of both did not effected tobe become imago. Sex ratio of S. inferenseffected on progeny producted with male and female 1.1 : 1.0Keywords: inoculation, parasitoid, Sturmiopsis inferens, Phragmatocia castaneae.

Pengaruh Umur Parasitoid Xanthocampoplex sp. (Hymenoptera: Ichneumonidae) terhadap Jumlah Larva Chilo sacchariphagus Bojer (Lepidoptera: Crambidae) di Laboratorium Sari M. D. Panggabean; Maryani Cyccu Tobing; Lahmuddin Lubis
Jurnal Agroekoteknologi Vol 3, No 1 (2015)
Publisher : Universitas Sumatera Utara

This objective was to study the effect of the ages of Xanthocampoplex sp. on the number of larvaeC. sacchariphagus. The research was held at Laboratory of Sugarcane Research and DevelopmentSei Semayang, Binjai, North Sumatera from November 2013 until January 2014. The method usedRandomized Complete Design with two factors and three replications. The first factor was imago’sage (0, 1, 2, 3, 4, 5, 6, 7, 8, 9 and 10 days) and the second factor was number of host (1, 3, 5 larvaeC. sacchariphagus). All parasitoid larvae appear from C. saccharipaghus was female. The highestpercentage parasitation (35.55%) on age 7 days Xanthocampoplex sp. and the lowest (0.00%) on1, 9, and 10 days Xanthocampoplex sp. The highest number of parasitoid was 1.00 and the lowestwas 0.00 and the highest number of host was 0.70 in number of host was 5 larvaeC. sacchariphagus and the lowest was 0.06 in 1 larvae C. sacchariphagus.Keywords :Xanthocampoplex sp., parasititation, C. sacchariphagus.

Pengaruh Cordyceps militaris terhadap mortalitas rayap (Coptotermes curvignathus Holmgren) (Isoptera: Rhinotermitidae) di laboratorium Arkhiadi Benauli Tarigan; Maryani Cyccu Tobing; Syahrial Oemry
Jurnal Agroekoteknologi Vol 3, No 3 (2015)
Publisher : Universitas Sumatera Utara

The influence of Cordyceps militaris on Coptotermes curvignathus Holmgren. (Isoptera: Rhinotermitidae) mortality in laboratory. This research was to study influence of entomophatogen fungus C. militaris against C. curvignathus in laboratory. This study was conducted in Pest Laboratory of Agriculture Faculty, University of Sumatera Utara, Medan during of October 2014 with using completely randomized design (CRD) nonfactorial with nine treatments and three replications : control, C. militaris sprayed (10, 20, 30 and 40 g/ 100 ml water), C. militaris sowed (10, 20, 30 and 40 g). The results showed that the highest mortality (100%) of C. militaris on sprayed 30 and 40 g/ 100 ml water and sowed 30 and 40 g in seventh day; the lowest (78.33%) on C. militaris sprayed 10 g/ 100 ml water. Termites was infected by C. militaris suffered mimification and after a few days the colonies was growth with white colored (micelium) around the body. The fastest of mortality time at 50% was 3.67 days on C. militaris sowed 40 g and the longest was 5.00 days on C. militaris sprayed 10 g/ 100 ml water and C. militaris sowed 10 g.Keywords : Coptotermes curvignathus, Cordyceps militaris, mortality, spray, sowe

Biologi Serangga Penyerbuk Elaeidobius Kamerunicus (Coleoptera: Curculionidae) Setelah 33 Tahun Diintroduksi di Sumatera Utara Riki Juliansen Girsang; Maryani Cyccu Tobing; Yuswani Pangestuningsih
Jurnal Agroekoteknologi Vol 5, No 2 (2017)
Publisher : Universitas Sumatera Utara

Penelitian ini bertujuan untuk mempelajari biologi serangga penyerbuk Elaeidobius kamerunicus setelah 33 tahun diintroduksi di Sumatera Utara. Penelitian dilaksanakan di Insektarium Pusat Penelitian Kelapa Sawit (PPKS) Marihat mulai bulan Maret sampai Mei 2016. Penelitian dilaksanakan dengan metode deskriptif. Hasil penelitian menunjukkan bahwa siklus hidup E. kamerunicus 9 – 22 (+ 12,25) hari: telur menetas setelah 1 – 2 (+ 1,01) hari, larva instar pertama 1 – 2 (+ 1,05) hari, larva instar kedua 1 – 2 (+ 1,06) hari, larva instar ketiga 2 – 11 (+ 4,76) hari dan pupa 2 – 3 (+ 2,35) hari. Umur imago jantan 31 - 61 (+ 52,53) hari lebih lama dari pada imago betina 29 – 55 (+ 37,87) hari.

Pengaruh Beberapa Jenis Bahan Aktif Herbisida Dan Waktu Pemasangan Perangkap Terhadap Populasi Serangga Elaeidobius kamerunicus (Coleoptera: Curculionidae) Di PPKS Marihat Kebun Kalianta Ardi Ansyah; Maryani Cyccu Tobing; Suzanna Fitriany Sitepu; Agus Eko Prasetyo
Jurnal Agroekoteknologi Vol 6, No 2, April (2018)
Publisher : Universitas Sumatera Utara

The objective of this research was to study the influence of herbicides and time of trapping after application on population of weevil Elaeidobius kamerunicus. This research was conducted at Oil Palm Plantation Kalianta, Riau and at Laboratory of Indonesian Oil Palm Research Institute (IOPRI), using method of Factorial Randomized Group Design with 2 factors, the first was herbicides (without herbicide, methyl metsulfuron 100 gr/ha, paracuat 400 cc/ha, glyfosat 400 cc/ha) and the second factor is time of traps (2 hours after applications, 48 hours after application and 72 hours after application) with three replications.The results at field showed that population of weevil E. kamerunicushigher in treatment without herbicide compared to treatment using herbicide at male flower was 334 adults/spicelet and female flower was 689 adults/bunch. Treatment 72 hours after applications traping at male flower on population of weevil E. kamerunicus was 282 adults/spicelet. Keywords: Elaeidobius kamerunicus, Herbicide, oil palm, population.

The Number Population of Elaeidobius kamerunicus Faust. (Coleoptera: Curculionidae) to Pollinate the Oil Palm Flowers Linda Friscilla Jessica Hulu; Maryani Cyccu Tobing; Darma Bakti; Agus Eko Prasetyo
Jurnal Agroekoteknologi Vol 7, No 1,Jan (2019)
Publisher : Universitas Sumatera Utara

Developed-fruit was formed by pollination. One of pollination method could be composed using pollinator beetle such as Elaeidobiuskamerunicus. The objective of this research wasto study the effective of population E. kamerunicus to pollinate the palm oil flowers. It was arrange by Randomized Block Design with four treatments of bug (0, 100, 200 dan 300 adult) and six replication. The results showed that introduction of 200 adults is the most effective population in terms of fruit-bunch average weight (9.858 kg) and fruitlet average weight (7.146 kg). On the other hand, 100 adults is the most effective population amount in terms of fruit-set(56.90 %).

BEBERAPA ASPEK BIOLOGI KUTU PUTIH (Paracoccus marginatus) (HEMIPTERA: PSEUDOCOCCIDAE) PADA TERUNG DI RUMAH KACA Pratomi Simarmata; Maryani Cyccu Tobing; Ameilia Zuliyanti Siregar
Jurnal Agrotek Tropika Vol 9, No 3 (2021): JURNAL AGROTEK TROPIKA VOL 9, SEPTEMBER 2021
Publisher : Departement of Agrotechnology, Agriculture Faculty, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jat.v9i3.4678

Terung (Solanum melongena) merupakan tanaman sayur-sayuran dari famili Solanaceae yang dapat ditemukan tumbuh di daerah tropik maupun subtropik. P. marginatus merupakan hama polipag yang menyerang tanaman terung. Penelitian ini bertujuan untuk mempelajari beberapa aspek biologi kutu putih (P. marginatus) pada tanaman terung. Penelitian biologi serangga kutu putih (Paracoccus marginatus) dilaksanakan di rumah kaca dan laboratorium Hama Tumbuhan, Fakultas Pertanian, Universitas Sumatera Utara menggunakan metode deskriptif. Hasil penelitian menunjukkan bahwa: telur menetas setelah 6-8 (7.2±0.78) hari, nimfa instar pertama 5-7 (5.6±0.69) hari, nimfa instar kedua jantan 5-6 (5.4±0.51) hari, nimfa instar kedua betina 4-5 (4.4±0.51) hari, nimfa instar ketiga jantan 3-4 (3.5±0.52) hari, nimfa instar ketiga betina 4-5 (4.5±0.52) hari dan pupa jantan 4-7 (4.7±0.94) hari. Siklus hidup P. marginatus berkisar antara 31-37 (33,5 ± 5,18) hari. Umur imago betina 14-16 (14.7±0.67) dan imago jantan 3-5 (4.2±0.78) hari. Imago betina selama hidupnya dapat menghasilkan 1-2 ovisak dengan presentase telur yang menetas 89.08%. Perbandingan nisbah kelamin P. marginatus jantan : betina adalah 1 : 2.67.

Co-Authors Ade Sartika Rimadhani Agus Eko Prasetyo Agus Eko Prasetyo Ameilia Zuliyanti Siregar Aprilidia R Rajagukguk Ardi Ansyah Arkhiadi Benauli Tarigan Charles E Ginting 1 Darma Bakti Dewi L Sidauruk Hasanudin Hasanuddin Immanuel Sembiring Intan Purnamasari Lahmuddin Lubis Linda Friscilla Jessica Hulu Lisnawita Lisnawita Luskino Silitonga Mena Uly Tarigan Mirasiska Tarigan Mukhtar Iskandar Pinem Pratomi Simarmata Resfin Butarbutar Riki Juliansen Girsang Sari M. D. Panggabean Sisko Budianto Siti Rahayu Siti Rahayu Suzanna Fitriany Sitepu, Suzanna Fitriany Syahrial Oemry Tetra Febryandi Sagala Yuswani Pangestiningsih Yuswani Pangestuningsih Zaidah Fairuzah

Title

Found 17 Documents
Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title Search

Found 17 Documents Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title

Found 17 Documents
Search