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Effect of Cropping Systems and Farming Systems to the Diversity of Insects on Potato Field in Karo Highland Sidauruk, Lamria; Bakti, Darma; Kuswardani, Retna Astuti; Hanum, Chairani
Proceeding International Conference on Global Resource Conservation Vol 6, No 1: Proceeding of 6th ICGRC 2015
Publisher : Proceeding International Conference on Global Resource Conservation

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (0.209 KB)

The spesies composition of arthropods on agro-ecosystem can be seen as a general indicator for ecosystem stability and ecological resilience. Agricultural intensification has been linked with losses of biodiversity and disruption of key ecosystem services in farmed landscapes. This study aimed to determine how cropping system and farming systems able to increase the diversity of insects on potato field, that can be used as an integrated pest management strategy. The result showed that insect diversity index and population of natural enemies in polyculture cropping system is higher than monoculture cropping system, while the pest population is lower. Insect diversity index and population of natural enemies in organic farming systems is higher than conventional farming systems, in general the pest population was lower in conventional farming systems, but not significant with organic farming system. The polyculture cropping potatoes+cabbage+mustard+celery, potatoes+cabbage, potato+mustard respectively which grown by organic farming systems provide the highest insect diversity index, the lowest percentage of crop damage, the lowest populations of pest, and the highest natural enemy populations when compared with the same polyculture cropping with conventional farming systems.Â Keywords: Cropping system; farming system; insect diversity; potato

Development of mangrove tourism area through making tourism umbrellas as well as private society preparation in Regemuk village Pantai Labu Sub-Distric Deli Serdang District Bakti, Darma; Rosmayati; Rahmawati, Nini
ABDIMAS TALENTA: Jurnal Pengabdian Kepada Masyarakat Vol. 4 No. 2 (2019): ABDIMAS TALENTA: Jurnal Pengabdian Kepada Masyarakat
Publisher : Talenta Publisher

Regemuk Village has the potential to be developed into a new tourist destination village. The village which is located along the coastline of Deli Serdang Regency is geographically the closest village to Medan City and the location is adjacent to Kuala Namu Airport. One of the advantages of this village is the presence of a stretch of mangrove forest which is still quite good along the 7 km coastline. The development of the village into one of the beach tourism destinations has been a long-term discourse, but until now it has not been implemented. To realize this, it is necessary to explore the development of supporting facilities in order to initiate the development of the village into a tourist destination mangrove tourism area. Seeing this reality, the USU PPM Implementation Team through the Professor Serves Program Scheme helped community problems by developing mangrove forest areas and providing supporting facilities, namely beach tourism park umbrellas. The existence of this facility is expected to help increase the carrying capacity of this newly formed tourist site. This program will encourage the spirit of the realization of mangrove tourism areas and be able to produce other downstream tourism products.

Parasitization and Identification of The Red Guava Fruit Fly Parasitoids in The Deli Serdang District Sari, Putri Mustika; Bakti, Darma; Lisdayani, Lisdayani
PLANTA TROPIKA: Jurnal Agrosains (Journal of Agro Science) Vol 7, No 2 (2019)
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/pt.2019.104.137-140

Deli Serdang District is one of the regions producing red guava fruit in Sumatra Utara. Cultivation of fruit trees is never separated from pest disorders, which can cause a decrease in the quality and quantity of fruit. Then proper control is needed so that it can maintain the balance of insect populations in the field. This study aims to determine the type of parasitoid and parasitoid parasitic levels in red guava crops. Identification morphology of parasitoidâ€™s fruit flies rearing from red guava fruit that had been attacked by fruit flies was taken from several locations of red guava crops in Deli Serdang District. Two species of parasitoid Psytalia sp. the parasitic fruit fly in the red guava crop. Â The parasitoids that have been found then identified at LIPI, Cibinong, Bogor morphologically has many similarities with Psytalia walker and Psytalia walkeri so that identification of species is only made close to the morphology of the species. Only in two locations were found parasitoidâ€™s rearing from infected fruit, namely Parasitization rate of 6.9% in Sei Beras Sekata village, and Kolam village of 3.6%.

Testing of Packaging and Use of Attractants to Control Fruit Flies(Bactrocera dorsalis Hendel) Guava (Psidium guajava L.) Siregar, Ameilia Zuliyanti; Zulina, Cynthia; Bakti, Darma
Jurnal Online Pertanian Tropik Vol. 7 No. 3 (2020): JURNAL ONLINE PERTANIAN TROPIK
Publisher : Talenta Publisher

The aims of this study to determine: The effect of kinds attractants and time of wrapping on to control of percentage of fruit fly attacks which determined the guava quality. This research was conducted in Durin Jangak Village, Pancur Batu District, Deli Serdang Regency from May to July 2019. This research was conducted using a randomized block design method with three factors: time, wrapping, attractant. The result of this research showed that the treatment by using the white plastic wrapping and attractant traps obtained the highest fruit diameter is 10.23 cm and the lowest treatment with no packaging and without attractant traps is 7.40 cm. In the treatment by using the white plastic wrapping and attractant traps obtained the highest fruit weight is 586 grams and the lowest treatment using without wrapping and attractant traps is 165 grams. At the observation of the highest trapped fruit flies in the treatment without wrapping and attractant traps that were 961 fruit flies and the lowest trapped fruit flies were white plastic wrapping treatments and attractant traps that were 790 fruit flies. In the treatment without wrapping and attractant traps,wrapping gauze and attractant traps obtained the highest percentage of fruit attack, namely 100% and treatment of white plastic wrapping and attractant traps obtained the lowest fruit attack, consist of 33%.

THE DIVERSITY Of FRUIT FLIES IN RED GUAVA CROPS AND PARASITOID PARASITIZATION LEVEL IN DISTRICT DELI SERDANG Sari, Putri Mustika; Bakti, Darma; Tobing, Maryani Cyccu
Journal of Community Research and Service Vol 1, No 2: July 2017
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jcrs.v1i2.9331

AbstractMorphological and Molecular of Identification Bactrocera sp. (Diptera: Tephritidae) in 5 Location of Red Guava Crops District Deli Serdang. Fruit flies are a concern in the world because they are an important pest in fruits. Seven species of fruit flies (Bactrocera carambolae, Bactrocera papayae, Bactrocera curcubitae, Bactrocera caudata, Bactrocera albistrigata, Bactrocera tau, Bactrocera umbrosa) have been identified from the morphological identification of fruit flies in LIPI. The fruit fly is obtained from trapping with methyl eugenol, cocoa waste processing, and a mixture of both. Found 2 species of parasitoid (Psytallia sp. near Walker; Psytallia sp. near Walkeri) from the rearing of fruit that was attacked at five locations of red guava plantation district Deli Serdang.Keywords : Bactrocera spp., morphology, atractant, parasitoid

THE IDENTIFICATION OF BACTERIAL SYMBIONT’S OF THE LARVAE ORYCTES RHINOCEROS L. AND THE ROLE OF THE BACTERIA IN COMPOSTING PROCESS Sijabat, Octanina Sari; Marheni, Marheni; Bakti, Darma
Journal of Community Research and Service Vol 1, No 2: July 2017
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jcrs.v1i2.9334

AbstractOryctes rhinoceros L. has symbioses with micro organisms in their hind guts which further break down plant material consumed by beetle. The aim of this research is to determine the identification of the existence of the bacterial species in the hind gut larvae of the symbiotic bacteria using biochemical test and analysis based on 16S rRNA. The result of this research indicate that there were two different bacterials: Bacillus siamensis and Bacillus stratosphericus found. The bacteria was used for starting the composting and more specifically, the Bacillus siamensis can speed up composting with the end result at C/N 13.16.Keywords: Larvae O. rhinoceros L, Bacterial Symbionts, 16S rDNA, Composting

Parasitism capacity of telenomus sp. (hymenoptera: scelionidae) on spodoptera frugiperda, in refugia system Ardina, Ardina; Bakti, Darma; Tobing, Maryani Cyccu L.; Ubaidillah, Rosichon; Darmawan, Darmawan
International Journal of Basic and Applied Science Vol. 12 No. 4 (2024): March: Basic and Applied Science
Publisher : Institute of Computer Science (IOCS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35335/ijobas.v12i4.327

Fall armyworm (Spodoptera frugiperda) is one of the pests that attacks maize. There are many ways to control this pest problem one of which is to use insecticides. However, biological control this pest with nature conservation based on the concept of integrated pest control. Refugia plants offer pest control properties based on the IPM (Integrated Pest Management) concept by providing food for parasitoids as the natural enemies. This study aimed to know capacity parasitism of egg parasitoid S. frugiperda in refugia system. This research uses non-factorial randomized group design (RGD) study, the number of S. frugiperda egg parasitoids on maize fields with refugia plants around it was counted. There were 5 treatments with 5 replications applied in this study: Control/without refugia, maize plants with red refugia (Zinnia elegans), maize plants with yellow refugia (Melanpodium paludosumi), maize plants with white refugia (Turnera subulata), maize plants with red refugia, yellow and white. This study found two species of S. frugiperda egg parasitoids namely Telenomus remus Nixon (Hymenoptera: Scelionidae) and Telenomus dignus (Hymenoptera: Scelionidae) in the field. The overall rate of parasitism egg S. frugiperda was no significant effect. The treatment of maize plants with white and mixed-colour refugia (red, yellow, white) showed the highest egg parasitization at 15 days after planting (DAP). Meanwhile, the dominance of Telenomus remus Nixon parasitoid was at an average of 0.202% and the lowest dominance of Telenomus dignus at 0.030%.

Efforts to increase production sweet potato as raw materials Kaya Beta Karoten flour by using compost baglog mushroom waste Rosmayati; Bakti, Darma; Rahmawati, Nini; Ridwansyah
ABDIMAS TALENTA: Jurnal Pengabdian Kepada Masyarakat Vol. 5 No. 1 (2020): ABDIMAS TALENTA : Jurnal Pengabdian Kepada Masyarakat
Publisher : Talenta Publisher

Research-based community partnership program activities involve two partners, namely the Murti Lestari Farmer Group and Agrina Creation UKM in Helvetia Village, XI Gang Sawit Hamlet, Labuhan Deli District Deli Serdang Regency. This dedication activity is the application of the results of research that had been carried out two years earlier which was USU's Talent Grants in 2017 and 2018. The problem faced was the lack of understanding of oyster mushroom baglog waste management techniques that have the potential to pollute the environment, on the other hand the farmer group Murti Lestari also experienced difficulties in increasing the quantity and quality of sweet potato production which is also widely cultivated in this village. The low interest of farmers is also encouraged because of the low price of sweet potato products and a relatively limited shelf life. The method implemented for training and discussion, accompanied by the practice of making compost from mushroom baglog waste, the practice of preparing planting material in the form of local sweet potato clones with high beta carotene content, compost application in sweet potato cultivation, maintenance to harvesting and post-harvest process using processing equipment into sweet potato flour rich in beta carotene and various other processed food products. Activities that have been carried out are training on composting of baglog mushroom waste using compost counting machines and bioactivators introduced in this activity so that the composting process goes faster, training on technical culture of orange sweet potato cultivation by applying mushroom baglog compost, training on mushroom making mushrooms and composting Oyster mushroom cultivation using shelves made of mild steel and fogging using a sprayer. Production and quality of yields of sweet potatoes that were given compost baglog oyster mushroom waste increased compared without the provision of compost. The next crop is processed into sweet potato flour with high beta carotene content and various food products using an introduced machine, which is a sweet potato slicing machine, flour machine, macaroni making machine and equipment for making sweet potato flour based food processing products.

Development of mangrove tourism area through making tourism umbrellas as well as private society preparation in Regemuk village Pantai Labu Sub-Distric Deli Serdang District Bakti, Darma; Rosmayati; Rahmawati, Nini
ABDIMAS TALENTA: Jurnal Pengabdian Kepada Masyarakat Vol. 4 No. 2 (2019): ABDIMAS TALENTA: Jurnal Pengabdian Kepada Masyarakat
Publisher : Talenta Publisher

Regemuk Village has the potential to be developed into a new tourist destination village. The village which is located along the coastline of Deli Serdang Regency is geographically the closest village to Medan City and the location is adjacent to Kuala Namu Airport. One of the advantages of this village is the presence of a stretch of mangrove forest which is still quite good along the 7 km coastline. The development of the village into one of the beach tourism destinations has been a long-term discourse, but until now it has not been implemented. To realize this, it is necessary to explore the development of supporting facilities in order to initiate the development of the village into a tourist destination mangrove tourism area. Seeing this reality, the USU PPM Implementation Team through the Professor Serves Program Scheme helped community problems by developing mangrove forest areas and providing supporting facilities, namely beach tourism park umbrellas. The existence of this facility is expected to help increase the carrying capacity of this newly formed tourist site. This program will encourage the spirit of the realization of mangrove tourism areas and be able to produce other downstream tourism products.

Tangkapan dan tingkat kematangan gonad Ikan selar kuning (Selariodes leptolepis) di Perairan Selat Malaka Tarigan, Adriana; Bakti, Darma; Desrita, Desrita
Acta Aquatica: Aquatic Sciences Journal Acta Aquatica: Aquatic Sciences Journal, Vol. 4: No. 2 (October, 2017)
Publisher : Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/aa.v4i2.300

Biologi reproduksi meliputi distribusi frekuensi panjang, hubungan berat-panjang tubuh, rasio jenis kelamin, tingkat kematangan gonad (TKG), indeks somatic gonad (IKG), diameter telur. Data primer yang digunakan adalah panjang dan berat tubuh, bobot dan gonad Ikan yang diperoleh dari 360 ekor sampel. Data sekunder dikumpulkan dari Laporan Statistik Perikanan PPS Belawan berupa jumlah produksi, dan jumlah tangkapan ikan tahun 2011-2016. Hasil penelitian menunjukkan distribusi frekuensi panjang ikan berkisar antara 110 mm - 163 mm. pola pertumbuhan ikan adalah alometrik negatif dengan koefisien korelasi jantan dan betina mendekati 1 yaitu 0,812 dan 0,733. Indeks kematangan gonad untuk ikan betina adalah lebih besar dibanding ikan jantan. Tingkat kematangan gonad diperoleh dari tingkat I, II, III, dan IV.Reproductive biology including length frequency distribution, long weight relationship, sex ratio, gonadal maturity level, gonadal somatic index and egg diameters. Primary data used is lenght and body weight. Weighting obtained as many as 360 samples. Secondary data was collected from Fishing Statistical Report of PPS Belawan, which were the amount of production, and fishing effort of the year 2011-2016. The results showed the frequency distribution of fish length of 110 mm - 163 mm. Character growth negative allometric with a correlation coefficient males and females approximate to 1 whereas 0.812 and 0.733. Gonadal maturity index for females fish than large from males fish. Gonadal maturity index obtained by the I, II, III, and IV.

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