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All Journal EUGENIA Budapest International Research in Exact Sciences (BirEx Journal) SINTA Journal (Science, Technology, and Agricultural) Jurnal Agroekoteknologi Terapan Britain International of Exact Sciences Journal (BIoEx Journal) COCOS
Maxi Lengkong
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Agriculture, Biological Sciences & Forestry Astronomy Biochemistry, Genetics & Molecular Biology Chemistry Civil Engineering, Building, Construction & Architecture Earth & Planetary Sciences Environmental Science Mathematics Medicine & Pharmacology Physics Transportation Veterinary

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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.
Diversity of Insect Types on Rice (Oryza Sativa L.) Crops in Minahasa District Lengkong, Maxi; Wanta, Noni N.; Paruntu, Masye 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.v6i2.7860

Abstract

The aim of the research is to determine the types and diversity of insects on rice plants in West Kakas District, Minahasa Regency. It is hoped that this research can provide information on the presence of insects that live and are associated with lowland rice plants so that insect pest control strategies can be implemented that are right on target, on time and for their proper use. The research will be carried out based on the purposive sampling method aimed at 5 observation points carried out at 4 locations and the method of catching insects is carried out directly and using insect nets. Research results show that insects are pests and natural enemies. Pest insects consist of 5 orders, 12 families and 16 species, namely Dolycorus sp, Scotinophara sp. , Stenodema sp, Leptocorisa sp, Paraecosmetus sp, Cofana spectra, Recilia sp ., Nephotetix sp, Oxya sp. , Anacridium sp, Chilo sp, Parnara sp, Cnaphalocrocis sp . , Orseolia sp , Chlorops sp , and Phyllotretra sp. Meanwhile, natural enemies consist of 3 orders, 9 families and 9 species, namely Cyrtohinus sp . , sp, Agryophylax sp . , Sepedon sp., Encarsia sp., Menochilus sp. , Ophionea sp . , Paederus sp., Sceliphron sp. and Agriocnemis sp. The results of Shannon and Wiever's diversity analysis are H' = 2.81 or moderate diversity index , richness index R = 4.67 or medium criteria value, evenness index E = 0.52 or moderate and unstable evenness index, and dominance index C = 0.37 or low dominance.
Application of Vegetable Insecticides from (Cymbopogon nardus L. Rendle) Extract Against Major Pests of (Capsicum frutescens L.) in Uuwan Village Maningkas, Praise Frena; Pinaria, Betsy Agustina Naomi; Lengkong, Maxi
Jurnal Agroekoteknologi Terapan Vol. 5 No. 1 (2024): EDISI JANUARI-JUNI 2024
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/jat.v5i1.57275

Abstract

This research aims to control insect pests found on chili plants (C. frustescens L.) using the botanical insecticide lemongrass extract (Cymbopogon nardus) which is environmentally friendly and easy to apply by farmers in the field. The design used in this research was a randomized block design consisting of 5 treatments with 4 replications. The 5 treatments include: S0 as a control, S1 spraying once a week, S2 spraying once every 2 weeks, S3 spraying once every 3 weeks, and S4 spraying once every 4 weeks. Each experimental plot consisted of 30 chili plants. The research results found 4 types of pests on chili plants, namely, A. gossypi, B. tabaci, S. Litura, and M. Persicae. Compounds in citronella extract can repel or inhibit the growth of pests on Capsicum frutescens. The 2-week interval of spraying vegetable pesticide with Cymbopogon nardus extract has a significant effect on the pests Bemisia tabaci, Aphis gossypi and Myzus persicae. Keywords: Vegetable insecticide, Capsicum frustescent, Cymbopogon nardus, major pests Abstrak Penelitian ini bertujuan untuk mengendalikan hama serangga yang terdapat pada tanaman cabai (C. frustescens L.) menggunakan insektisida nabati Ekstrak Serai Wangi (Cymbopogon nardus) yang ramah terhadap lingkungan dan mudah diterapkan oleh petani di lapangan. Rancangan yang digunakan pada penelitian ini adalah rancangan acak kelompok yang terdiri dari 5 perlakuan dengan 4 kali ulangan. 5 perlakuan diantaranya : S0 sebagai control, S1 penyemprotan dilakukan 1 kali seminggu, S2 penyemprotan dilakukan 2 minggu 1 kali, S3 penyemprotan dilakukan 3 minggu 1 kali dan S4 penyemprotan dilakukan 4 minggu 1 kali. Setiap plot percobaan terdiri dari 30 tanaman cabai. Hasil penelitian ditemukan 4 jenis hama pada tanaman cabai yaitu, A. gossypi, B. tabaci, S. Litura dan M. Persicae. Senyawa pada ekstrak serai wangi dapat menolak atau menghambat pertumbuhan hama pada tanaman Capsicum frutescens. Interval waktu tiap 2 minggu penyemprotan pestisida nabati ekstrak Cymbopogon nardus berpengaruh nyata terhadap hama Bemisia tabaci, Aphis gossypi dan Myzus persicae. Kata Kunci: Insektisida nabati, Capsicum frustescens, Cymbopogon nardus, Hama utama
The application of PGPR, Tricocompost, and MOL on the growth and quality of production, as well as the incidence of disease-causing agents in tomato plants in the Rurukan I district of Tomohon City Denny Saroinsong; Maxi Lengkong; Noni N. Wanta
Britain International of Exact Sciences (BIoEx) Journal Vol 7 No 1 (2025): Britain International of Exact Sciences Journal, January
Publisher : Britain International for Academic Research (BIAR) Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33258/bioex.v7i1.1211

Abstract

The objective of this research is to assess the impact of PGPR, Trichocompost, and MOL on the growth and quality of production, as well as the incidence of disease-causing microorganisms in tomato plants. This study will be conducted by comparing the use of beneficial organic microorganisms namely PGPR, Trichocompost, and MOL with inorganic farming systems that utilize synthetic fertilizers and manure as sources of nutrition for tomato plants. The research method employed a randomized block design consisting of three treatments as follows: Treatment A involved a combination of PGPR, Trichocompost, and MOL; Treatment B utilized inorganic fertilizers N, P, K along with foliar fertilizers Gandasil D and B; Treatment C consisted of chicken manure. Each treatment was replicated five times, with 50 plants per plot, resulting in a total of 750 plants for observation. The results indicated that the application of PGPR, Trichocompost, and MOL positively influenced the average flowering time, the average weight of 50 fruits, and the duration until fruit decay during the growth, development, and production phases of tomato plants. Furthermore, the use of PGPR, Trichocompost, and MOL effectively reduced the incidence of the fungal pathogen P. palmivora on leaves, the bacterial disease Erwinia sp. on leaves, and the fungal disease P. palmivora on fruit stems.
Acremonium sp. sebagai Agen Biokontrol Eceng Gondok (Eichhornia crassipes (Mart.) Solms. Laubach) Daisy S. Kandowangko; Maxi Lengkong; Frans B. Rondonuwu
SINTA Journal (Science, Technology, and Agricultural) Vol. 6 No. 2 (2025)
Publisher : Perkumpulan Dosen Muda (PDM) Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37638/sinta.6.2.387-392

Abstract

Various strategy control Already implemented For control population water hyacinth in the lake Tondano like control in a way mechanical , physical , chemical And biological but Not yet succeed . In a way experience mold phytopathogenic This has cause incidence disease in D. Tondano more from 50%. The research objectives are as follows: (1) to prove that spots leaf tailed on leaf water hyacinth goiter caused by by Acremonium sp., ( 2 ) determine inoculum threshold Acremonium sp., (3) determines severity of leaf spot disease based on spore concentration , (4) determines severity of leaf spot disease based on the number total , and (5) determine based on interaction between level concentration spores And amount water hyacinth sampling​ goiter based on amount dots Neochetina sp. (0: healthy , 5 – 10, > 10 – 30, > 30) was carried out in D. Tondano . Koch's postulates , sporulation Acremonium sp., preparation concentration spores , and home inoculation​ plastic conducted in the Phytopathology Lab , Faculty of Agriculture Unsrat . Design test For application a number of concentration based on amount dots Neochetina sp. leaves water hyacinth goiter use factorial in design random complete with three test . Factor concentration There is three level (0.1 x 10 5 and 1 x 10 6 And factor amount dots Neochetina sp. has four level (0: healthy , 5 – 10, > 10 – 30, > 30). Results study show that inoculum threshold Acremonium sp. is 1 x 10 5 spores /ml, severity disease spots leaf tailed compared straight with level concentration spores , severity disease spots leaf tailed No compared straight with amount dots , and severity disease spots leaf tailed based on interaction concentration spores And amount dots No compared straight
Co-Authors Avendi Rangkaya Caroulus S. Rante Chika C. Maarebia Daisy S. Kandowangko Dantje Tarore Denny Saroinsong Dewi R. Elhanan B. Kastilong Elisabet. R. M. Meray Fini Natalia Tumewan Frans B. Rondonuwu Henny V.G. Makal Jackson Watung James B. Kaligis Jantje Jantje Pelealu Maningkas, Praise Frena Merlyn Meray Michael A. Lumi Monalisa Debora Setlight Moulwy F. Dien Noni N. Wanta Oddi R Pinontoan Paruntu, Masye B. Paruntu, Meisye H. B. Pinaria, Betsy Agustina Naomi R. Irsan Dj. Hutumoy Reity Engka Sherlij Dumalang