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ISOLATION AND PHENOTYPIC CHARACTERISATION OF MORPHOLOGY IN FUNGUS Beauveria bassiana (Balsamo) Vuillemin COLONY NATURALLY FROM LEAF SURFACE, SOIL, AND INSECT AS HOST IN TOMATO PLANTATION Affandi, Aminuddin; Chailani, Siti Rasminah; Mimbar, Saubari M.; Wiroatmodjo, Boedijono
AGRIVITA, Journal of Agricultural Science Vol 34, No 3 (2012)
Publisher : Faculty of Agriculture University of Brawijaya and Indonesian Agronomic Assossiation

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Virulence of fungus Beauveria bassiana as pathogen on insect can be predicted according to phenotypic character in colony morphology. First of all, isolates of three different habitats were taken. Furthermore, their phenotypic characters was further characterised in B. bassiana colony and the colony growth rate was also monitored. The three natural habitats comprised insects, soil in tomato plantation and the surface of tomato leaves. The result showed that B bassiana isolate managed to be isolated from the three natural habitats involving larva Spodoptera litura and Helicoverpa armigera, the soil, and surface of tomato leaves. B bassiana isolate of insect habitat represented phenotype in colony morphology with curved character, while isolate of the leaves’ surface and soil indicated phenotype in colony morphology with raised and bowl-shaped character. In addition to the colony characters, varied growth rate was also indicated by isolate from each habitat. Isolate of insect with curved colony character represented higher growth rate than that of the leaves’ surface or the soil with raised and bowl-shaped colony character. The colony with curved character represented phenotypic character of isolate B bassiana with high growth rate. Thus, B. bassiana isolate with the curved colony of insect served as an isolate which was expected to be virulent as controlling agent to biological elements.       Keywords: B. bassiana isolate, phenotypic characters in colony morphology, colony growth rate, habitat of fungus
ISOLATION AND PHENOTYPIC CHARACTERISATION OF MORPHOLOGY IN FUNGUS Beauveria bassiana (Balsamo) Vuillemin COLONY NATURALLY FROM LEAF SURFACE, SOIL, AND INSECT AS HOST IN TOMATO PLANTATION Aminuddin Affandi; Siti Rasminah Chailani; Saubari M. Mimbar; Boedijono Wiroatmodjo
AGRIVITA, Journal of Agricultural Science Vol 34, No 3 (2012)
Publisher : Faculty of Agriculture University of Brawijaya in collaboration with PERAGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17503/agrivita.v34i3.229

Abstract

Virulence of fungus Beauveria bassiana as pathogen on insect can be predicted according to phenotypic character in colony morphology. First of all, isolates of three different habitats were taken. Furthermore, their phenotypic characters was further characterised in B. bassiana colony and the colony growth rate was also monitored. The three natural habitats comprised insects, soil in tomato plantation and the surface of tomato leaves. The result showed that B bassiana isolate managed to be isolated from the three natural habitats involving larva Spodoptera litura and Helicoverpa armigera, the soil, and surface of tomato leaves. B bassiana isolate of insect habitat represented phenotype in colony morphology with curved character, while isolate of the leaves’ surface and soil indicated phenotype in colony morphology with raised and bowl-shaped character. In addition to the colony characters, varied growth rate was also indicated by isolate from each habitat. Isolate of insect with curved colony character represented higher growth rate than that of the leaves’ surface or the soil with raised and bowl-shaped colony character. The colony with curved character represented phenotypic character of isolate B bassiana with high growth rate. Thus, B. bassiana isolate with the curved colony of insect served as an isolate which was expected to be virulent as controlling agent to biological elements.       Keywords: B. bassiana isolate, phenotypic characters in colony morphology, colony growth rate, habitat of fungus
Population Dynamic and Distribution of Bactrocera carambolae and Bactrocera dorsalis in Orchard Habitat in Different Geographical Areas Kolopaking, Budiarto; Rizali, Akhmad; Affandi, Aminuddin; Hudiwaku, Syarron; Himawan, Toto
Research Journal of Life Science Vol 10, No 1 (2023)
Publisher : Direktorat Riset dan Pengabdian Masyarakat, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.rjls.2023.010.01.1

Abstract

Fruitflies, particularly Bactrocera carambolae and Bactrocera dorsalis, are significant pests that have the potential to diminish the quality and quantity of agricultural products. They may live in diverse habitats, particularly in agroecosystem habitats. Orchard habitats offer a source of food and development for fruit flies like B. carambolae and B. dorsalis not only in Java, notably Majalengka Regency, but also in Lombok Island and West Nusa Tenggara. Consequently, the purpose of there search is to observe (1) The population dynamic of B. carambolae and B. dorsalis in the orchard habitat. (2) Distribution of fruit flies B. carambolae and B. dorsalis trapping results in the orchard habitat. (3) Analyzing the factors affecting the presence of the fruit fly species B. carambolae and B. dorsalis in the orchard habitat. Fruitflies were sampled using the trap method between December 2021 and March 2022. In the orchard habitat on the mangosteen fruit commodity, the results indicated that B. carambolae and B. dorsalis had the largest population densities. Additionally, orchard locations on Lombok Island had the highest population density. Furthermore, fruitflies are more prevalent in perennial crops than in annual ones due to higher population density. Perennial crops are the ideal conditions for fruit fly development as compared to seasonal crops.