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Development of the Parasitoid Trichogramma Sp. and Its Parasitization Capability Population Pest Spodotera Furgiperda in Plantation Corn Please, Tomohon City Lengkong, Maxi; Dien, Moulwy F.; Paruntu, Meisye H. B.
Budapest International Research in Exact Sciences (BirEx) Journal Vol 6, No 2 (2024): Budapest International Research in Exact Sciences, April
Publisher : Budapest International Research and Critics University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33258/birex.v6i2.7859

Abstract

Spodoptera frugiperda is a new pest that entered Indonesia around 2018 and acts as the main pest that causes young corn plants to be damaged and experience growth problems. It is known that there is a natural enemy, namely the parasitoid Trichogramma sp. which can attack S. frugiperda eggs. The research method can be carried out by experimenting with the development and multiplication of the parasitoid Trichogramma sp. in the laboratory using a previously cultured population of C. cephalonica eggs as a host. The results showed that the multiplication of the egg parasitoid Trichogramma sp. with alternative host C. cephalonica can be done in the laboratory. Biological development in the form of the life cycle of the parasitoid Trichogramma sp. can be known based on observations, namely the egg stage is around 14-15 hours, the first instar larva stage is 22 hours, the second instar is 24 hours, the third instar is 25 hours, the fourth instar is 26 hours, the pupa stage is 28 hours, the lifespan of adult female insects is 10-12 days while the male 10-11 days. Percentage of parasitization of Parasitoid Trichogramma sp. the population of the S. frugiperda pest egg group in the field was quite high, ranging from 68.5 – 87.3 percent with an average of 76.5 percent.
Types And Populations of Pests on Cabbage Plants Which Are Planted Intercropping with Mustard Greens Refugia Wanta, Noni N.; Dumalang, Sherlij; Paat, Frangky J.; Paruntu, Meisye H. B.
Jurnal Agroekoteknologi Terapan (Applied Agroecotechnology Journal) Vol. 6 No. 2 (2025): ISSUE JULY-DECEMBER 2025
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/jat.v6i2.52482

Abstract

The purpose of this study is to determine the types and populations of pests in cabbage plants planted intercropping with mustard greens in Kakaskasen I Village, Tomohon City. The research method used is a survey method on experimental land made without the use of pesticides. Data collection was carried out on 3 observation plots with the number of sample plants in each plot was 30 plants. Observation of pest types and populations on cabbage plants is carried out every 2 weeks from the age of cabbage plants 2 weeks after planting to harvest. The data obtained were analyzed descriptively about the types and populations of pests in cabbage plants. The results of this study found that the main pests that attack cabbage plants that are planted intercropped with mustard greens are Plutella xylostella and Crocidolomia binotalis. The population of P. xylostella pests in cabbage plants is low on average ranging from 0.002 to 0.067 larvae/plant, while the population of C. binotalis pests is high with an average range of 0.056 to 1,422 larvae per plant. It is necessary to preserve the parasitoid D. semiclausum to control the pest of P. xylostella and find environmentally friendly pest control solutions of C. binotalis to produce healthy cabbage production. Keywords: Cabbage, Mustard greens, Population, Pests, Parasitoid Abstrak. Tujuan dari penelitian ini adalah untuk mengetahui jenis dan populasi hama pada tanaman kubis yang ditanam tumpangsari dengan refugia sawi hijau di Desa Kakaskasen I Kota Tomohon.  Metode penelitian yang digunakan adalah metode survei pada lahan percobaan yang dibuat tanpa menggunakan pestisida.  Pengambilan data dilakukan pada 3 plot pengamatan dengan jumlah tanaman sampel masing-masing plot adalah 30 tanaman.  Pengamatan jenis dan populasi hama pada tanaman kubis dilakukan setiap 2 minggu sekali sejak tanaman kubis berumur 2 minggu setelah tanam sampai panen. Data yang diperoleh dianalisa secara deskriptif tentang jenis dan populasi hama pada tanaman kubis. Hasil penelitian ini ditemukan hama utama yang menyerang tanaman kubis yang ditanam tumpang sari dengan refugia sawi hijau adalah hama Plutella xylostella dan Crocidolomia binotalis.   Populasi hama P. xylostella pada tanaman kubis rendah berkisar rata-rata 0.002 – 0.067 larva/tanaman, sedangkan populasi hama C. binotalis tinggi dengan rata-rata berkisar 0.056 sampai 1.422 larva per tanaman.  Perlu melestarikan parasitoid D. semiclausum untuk mengendalikan hama P. xylostella dan mencari solusi pengendalian hama C. binotalis yang ramah lingkungan untuk menghasilkan produksi kubis yang sehat. Keywords: Kubis, Sawi Hijau, Refugia, Hama, Parasitoid
Diversity And Functional Composition of Ground Dwelling Arthropods in Vegetable Fields of Modoinding District. Turang, Deflly A. S.; Tairas, Robert William; Paruntu, Meisye H. B.; Kairupan, Grace Amanda
Jurnal Agroekoteknologi Terapan (JAT) Vol. 7 No. 1 (2026): ISSUE JANUARY-JUNE 2026
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/jat.v7i1.66768

Abstract

Ground dwelling arthropods contribute to decomposition, nutrient cycling, and biological control, and their community structure can reflect management intensity in agroecosystems. Intensive vegetable cultivation in Modoinding District, South Minahasa Regency, North Sulawesi, commonly involves routine fertilizer and pesticide use, yet baseline information on soil associated arthropod diversity across major crops remains limited. This study assessed the diversity, functional roles, and population levels of ground dwelling arthropods in vegetable fields using pitfall trapping. Sampling was conducted at ten georeferenced points distributed across key vegetable producing villages, with traps operated for two days and repeated three times. Arthropods were sorted through macroscopic observation and identified using microscopic examination, primarily to order and family levels. Community diversity was quantified using the Shannon Wiener index. Overall, eight orders and seventeen families were recorded, representing decomposers, predators, herbivores, vectors, parasitoids, and omnivores. Decomposer groups, particularly Collembola, were generally dominant in several crop fields, while predator groups such as ants and spiders were also consistently present. Shannon diversity values across host crops ranged from 0.255 to 1.333, indicating low to moderate diversity and suggesting that some fields were characterized by strong dominance of a limited number of taxa. These findings provide baseline data for biomonitoring programs in Modoinding and support the use of ground dwelling arthropod communities as practical indicators to evaluate ecological responses to vegetable production management. Keywords: Collembola, Modoinding, Pitfall trap, Shannon Wiener index, Vegetable fields
Field Performance of Fruit-Waste Eco-Enzyme Baits for Trapping Bactrocera Spp. In Chili (Capsicum Frutescens L.) Fields of Tomohon City, Indonesia Wanta, Noni N.; Paruntu, Meisye H. B.; Krisen, Jeane
Jurnal Agroekoteknologi Terapan (JAT) Vol. 7 No. 1 (2026): ISSUE JANUARY-JUNE 2026
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/jat.v7i1.66769

Abstract

Eco-enzyme (EE) liquids produced by fermenting fruit waste may provide low-cost, locally available odor sources for fruit-fly monitoring. This study evaluated the effectiveness of EE baits prepared from nutmeg, banana, and pineapple wastes, as well as a mixed formulation, for trapping Bactrocera spp. in chili (Capsicum frutescens L.) fields in Kakaskasen I Village, Tomohon City, Indonesia. The experiment used a randomized complete block design with four EE treatments and five replicates. Traps were installed in fruiting-stage chili plots at approximately 1.5 m above ground level with ~5 m spacing and were observed over four sampling rounds at 6-day intervals. Captured adult fruit flies were counted and identified morphologically, and treatment effects were analyzed using analysis of variance followed by an LSD (BNT) test at the 5% significance level. Two species were recorded, Bactrocera dorsalis and B. cucurbitae. Mean trap catches (adults per trap) were highest for pineapple EE (6.3), followed by mixed EE (3.1), nutmeg EE (1.7), and banana EE (1.3). Pineapple EE differed significantly from the other treatments (LSD5% = 3.7), whereas the remaining treatments did not differ significantly. Captures were reported to be predominantly female, and non-target insects were also collected, indicating limited selectivity. Overall, pineapple fruit-waste EE showed the strongest field performance and warrants further development as a practical bait for Bactrocera spp. monitoring in chili agroecosystems. Keywords: Bactrocera dorsalis, Capsicum frutescens, eco-enzyme, fermented fruit waste, food-baited trapping