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All Journal Biodiversitas Journal of Biological Diversity
FERY ABDUL CHOLIQ
Department of Plant Pests and Diseases, Faculty of Agriculture, Universitas Brawijaya. Jl. Veteran, Malang 65145, East Java, Indonesia
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology

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Occurrence of soil-inhabiting entomopathogenic fungi within a conventional and organic farm and their virulence against Spodoptera litura AMINUDIN AFANDHI; FERY ABDUL CHOLIQ; ITO FERNANDO; YOSEP MINAR ALBERT NANDUS MARPAUNG; YOGO SETIAWAN
Biodiversitas Journal of Biological Diversity Vol. 23 No. 2 (2022)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d230263

Abstract

Abstract. Afandhi A, Choliq FA, Fernando I, Marpaung YMAN, Setiawan Y. 2022. Occurrence of soil-inhabiting entomopathogenic fungi within a conventional and organic farm and their virulence against Spodoptera litura. Biodiversitas 23: 1172-1180. Naturally occurring entomopathogenic fungi (EPF) are important components in agroecosystems as they serve as biocontrol agents of insect and mite pests. However, some cultivation practices may have deleterious effects on EPF. In this study, the occurrence of soil-inhabiting EPF was investigated between a conventional and organic farm. EPF was baited using Tenebrio molitor larvae, and their virulence was tested against Spodoptera litura larvae. The results showed a higher occurrence of EPF in the organic farm than the conventional farm, with Aspergillus sp., Beauveria sp., and Gliocladium sp. were exclusively found in organic soils. Among the twenty-five EPF isolates obtained, only four isolates were avirulent against S. litura larvae. Isolates belonging to Beauveria, Metarhizium, and Paecilomyces genera caused high mortality of S. litura larvae ranging from 40 to 65%. There was a significant positive relationship between the conidial viability of EPF and larval mortality. Since virulent isolates were found in conventional soils, efforts in preserving EPF prevalence are needed through the implementation of appropriate cultivation practices. The synthetic agrochemicals exclusion, organic fertilizers application, and crop rotation practiced in the organic farm should be integrated into any other agroecosystems as a form of conservation biological control strategies to strengthen the pest control service provided by EPF.
Screening of soil fungi as bioremediation fungicide and its effect on growth of potato plants ABDUL LATIEF ABADI; FERY ABDUL CHOLIQ; MUTHIA OKTAVIANITA; NOVIA ARINATA; MOCHAMMAD SYAMSUL HADI; YOGO SETIAWAN
Biodiversitas Journal of Biological Diversity Vol. 23 No. 3 (2022)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d230351

Abstract

Abstract. Abadi AL, Choliq FA, Oktavianita M, Arinata N, Hadi MS, Setiawan Y. 2022. Screening of soil fungi as bioremediation fungicide and its effect on growth of potato plants. Biodiversitas 23: 1605-1610. The negative impact of using fungicides on the environment can lead to chemical residues in the soil. The chemical degradation process can be carried out in several ways, one of which is by biological means by using microbes such as soil fungi. This study aimed to evaluate soil fungi isolated from natural forests for bioremediation of Mancozeb fungicide commonly used in potato fields in Indonesia. Isolated soil fungi were identified based on morphological and molecular level (PCR). The inhibition assay was carried out by growing fungal isolates on PDA media containing a fungicide with an active ingredient of 80% Mancozeb. Trichoderma harzianum isolated as a soil fungus from natural forest could grow in the fungicide Mancozeb medium. The biodegradation assay showed that treatment of Trichoderma harzianum and Mancozeb fungicide did not inhibit the growth of potato plants (plant height, number of leaves, and root length) as compared to the control. Based on the results of degradation test using HPLC method, T. harzianum both isolates can reduce the residue of fungicide Mancozeb in soil during the vegetative growth period of potato plants.
Co-Authors ABDUL LATIEF ABADI AMINUDIN AFANDHI ITO FERNANDO MOCHAMMAD SYAMSUL HADI MUTHIA OKTAVIANITA NOVIA ARINATA YOGO SETIAWAN YOSEP MINAR ALBERT NANDUS MARPAUNG