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The Effectiveness o f Entomopathogenic Fungi Beauveria bassiana with the Addition of Insect Growth Regulator Lufenuron f or Controlling Bactrocera carambolae Mochammad Syamsul Hadi; Toto Himawan; Luqman Qurata Aini
Journal of Tropical Life Science Vol. 3 No. 3 (2013)
Publisher : Journal of Tropical Life Science

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Abstract

The study of the effectiveness of entomopathogenic fungus Beauveria bassiana (Bals) Vuill. with the addition of an insect growth regulator (IGR) lufenuron to control the fruit fly Bactrocera carambolae (Drew and Hancock) (Diptera: Tephritidae) was conducted at the Laboratory of Toxicology and Laboratory of Entomology, Department of Plant Pests and Diseases, Faculty of Agriculture, University of Brawijaya Malang from March 2012 until December 2012. This study examined the effect of lufe-nuron to the development and sporulation of B. bassiana and the effectiveness of the fungus B. bassiana in combination with several concentrations of lufenuron (0.5, 1, 1.5 mL/L) on the mortality of fruit fly larvaB. carambolae. The results showed that the addition of lufenuron at the concentration of 1 mL/L could significantly increase the sporulation of B. bassiana. The addition of B. bassiana at 108 spores/mL combined with lufenuron at the concentration of 1 mL/L applied to compost pupation medium of larva of B. carambolae is significantly able to suppress the formation of the fruit fly pupa and imago of B. carambolae
PENGARUH FUNGISIDA TERHADAP KEANEKARAGAMAN BAKTERI TANAH DI KOTA BATU Indah Nur Khulillah; Abdul Latief Abadi; Luqman Qurata Aini
Jurnal Tanah dan Sumberdaya Lahan Vol. 6 No. 2 (2019)
Publisher : Departemen Tanah, Fakultas Pertanian, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (206.334 KB) | DOI: 10.21776/ub.jtsl.2019.006.2.1

Abstract

Environmentally friendly and conventional cultivation systems that are selected and used by farmers can directly or indirectly affect microbes in the soil. Microbial population diversity can be used as a sensitive parameter to soil quality. Bacterial populations are a determining factor in ecosystems that are important because of biological and biogeochemical cycles, and heterotrophic activities. This study suggests looking at environmentally friendly (O1) and conventional (K1, K2, K3) soil bacteria on soil planted with sweet maize and function of bacteria in ecosystems. The results of this study that diversity on environmentally friendly was higher than conventional soil. The value was 1,775; while those of the conventional lands 1, 2 and 3 were 1,587; 1,245 and 1,320. In O1 soil, the most common genus was Agrobacterium and bacteria which were only found in environmentally friendly soils were Bacillus and Clostridium. Bacteria found such as O1F and O1G which were related to B. paramycoides could be used as biological agents against Cercospora leaf spot disease, B. megaterium could bind nitrate to the rhizosphere and dissolve phosphate in the soil, and B. aryabhattai which was potential as biological fertilizers and bioremediation